CN117941606A - Device and method for controlling and applying gas fertilizer for substrate cultivation, electronic equipment and storage medium - Google Patents
Device and method for controlling and applying gas fertilizer for substrate cultivation, electronic equipment and storage medium Download PDFInfo
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Abstract
The invention provides a device and a method for controlling and applying gas and fertilizer for substrate cultivation, electronic equipment and a storage medium, belonging to the technical field of agricultural information, and comprising the following steps: the microbial aerobic reaction layer is paved at the bottom of the groove, and the padding is composed of agricultural and forestry waste mixed with microbial agents; at least one ventilation pipeline penetrating the crop planting layer and extending to the microorganism aerobic reaction layer, an axial flow fan and a controller for adjusting the air quantity of the axial flow fan introduced into the microorganism aerobic reaction layer are arranged in the ventilation pipeline. When the concentration of carbon dioxide in the greenhouse is insufficient, the axial flow fan is controlled to introduce air into the microorganism aerobic reaction layer so as to control the microorganism aerobic reaction layer to perform fermentation decomposition reaction, release carbon dioxide for photosynthesis of crops and heat required by life activities of crops, ensure the balance of the concentration of the carbon dioxide in the greenhouse and the normal growth of the crops, improve the utilization rate of the carbon dioxide and reduce the emission of greenhouse gases in the recycling process of agricultural and forestry wastes.
Description
Technical Field
The invention relates to the technical field of agricultural information, in particular to a device and a method for controlling and applying gas and fertilizer for substrate cultivation, electronic equipment and a storage medium.
Background
Soilless substrate cultivation has become a common planting mode in agricultural production, and unlike traditional soil cultivation where crops are planted in natural soil, soilless substrate cultivation mode is where crops are planted in artificially formulated substrates.
At present, turf, which is one of the main components of a matrix used for soilless culture, belongs to non-renewable resources, risks of resource exhaustion are faced, the non-sustainable property is achieved, and production cost is increased when additional turf is purchased. The soilless substrate cultivation mode of decomposing the agricultural and forestry waste into the substrate reduces the production cost, reduces the influence of the accumulation of the agricultural and forestry waste on the environment, and simultaneously enhances the sustainability of the soilless cultivation mode.
However, the preparation of the matrix by decomposing the existing agricultural and forestry waste is an uncontrollable process, and both aerobic decomposition and anaerobic decomposition release heat to discharge a large amount of carbon dioxide. In the process, the concentration of carbon dioxide in the greenhouse cannot be in an equilibrium state, so that the discharged carbon dioxide cannot be utilized by crops, is not beneficial to the growth of the crops, and simultaneously, the greenhouse gas is discharged to the atmosphere, so that the environment is not beneficial to the protection.
Disclosure of Invention
The invention provides a device, a method, electronic equipment and a storage medium for controlling the application of a gas fertilizer for substrate cultivation, which are used for solving the defects that the decomposition reaction of agricultural and forestry waste cannot be controlled and a large amount of carbon dioxide which cannot be utilized is generated in the prior art.
In a first aspect, the present invention provides a substrate cultivation gas fertilizer control device, comprising:
Grooves are formed in the greenhouse;
the microbial aerobic reaction layer is laid at the bottom of the groove, and the padding of the microbial aerobic reaction layer is composed of agricultural and forestry waste mixed with microbial agents;
the crop planting layer is paved on the microorganism aerobic reaction layer;
At least one ventilation pipeline penetrating the crop planting layer and extending to the microorganism aerobic reaction layer, wherein an axial flow fan is arranged in the ventilation pipeline;
And the controller is used for controlling the rotating speed of the axial flow fan according to the carbon dioxide concentration reduction rate in the greenhouse so as to adjust the air quantity of the axial flow fan introduced into the microorganism aerobic reaction layer and realize the carbon dioxide concentration balance in the greenhouse.
The invention provides a substrate cultivation gas fertilizer control device, which further comprises a carbon dioxide concentration sensor, wherein the carbon dioxide concentration sensor sends the collected carbon dioxide concentration value in a greenhouse to a controller;
the controller is used for executing the following operations:
under the condition that the carbon dioxide concentration value is smaller than a preset carbon dioxide concentration threshold value, determining the carbon dioxide release rate of the aerobic reaction of the padding of the microorganism aerobic reaction layer according to the calculated reduction rate of the carbon dioxide concentration in the greenhouse;
Determining an oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer according to the carbon dioxide release rate;
and controlling the rotating speed of the axial flow fan based on the oxygen supply rate.
The invention provides a substrate cultivation gas fertilizer control device, which also comprises an organic matter concentration sensor, a temperature sensor, a moisture detection sensor and a biological sensor which are arranged in a pad material of a microorganism aerobic reaction layer; the organic matter concentration sensor is used for acquiring the organic matter concentration of the padding, the temperature sensor is used for acquiring the temperature of the padding, the moisture detection sensor is used for acquiring the moisture content of the padding, and the biological sensor is used for acquiring the microorganism concentration of the padding;
correspondingly, the controller determines the oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer according to the carbon dioxide release rate, and specifically comprises the following steps:
forming an input vector from the concentration of the organic matters, the temperature of the padding, the water content, the concentration of the microorganisms and the release rate of the carbon dioxide, which are acquired in real time;
Inputting the input vector into a pre-trained microorganism aerobic reaction rate model, and obtaining an output vector output by the microorganism aerobic reaction rate model;
The output vector comprises a rate of organic degradation of the litter, a rate of net microbial proliferation of the litter, and a rate of oxygen consumption within the greenhouse;
And determining the oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer according to the oxygen consumption rate.
According to the substrate cultivation gas fertilizer control device provided by the invention, the microorganism aerobic reaction rate model is obtained by training a mixed model comprising a plurality of graph neural networks and an attention mechanism by utilizing a pre-constructed training sample set;
The training sample set includes a plurality of input vector samples and an output vector label corresponding to each of the input vector samples.
The invention provides a substrate cultivation gas fertilizer control device, which further comprises an oxygen concentration sensor, wherein the oxygen concentration sensor sends the collected oxygen concentration value in a greenhouse to a controller;
The controller controls the rotating speed of the axial flow fan based on the oxygen supply rate, which is calculated based on the following mathematical model:
；
Wherein, For the oxygen loss factor which is transported into the microorganism aerobic reaction layer and cannot be consumed by the microorganism,/>Is the air quantity conversion coefficient between the fan rotating speed and the air supply quantity of the axial flow fan, i.e./>For the oxygen concentration value,/>For the oxygen supply rate of the axial flow fan,/>The rotational speed of the axial flow fan.
According to the substrate cultivation gas fertilizer control device provided by the invention, a plurality of ventilation pipelines are arranged in the groove at equal intervals, and each ventilation pipeline is internally provided with the axial flow fan.
According to the substrate cultivation gas fertilizer control device provided by the invention, a bottom isolation layer and a side wall isolation layer are paved in the groove;
the microbial aerobic reaction layer is positioned above the bottom isolation layer.
In a second aspect, the invention also provides a method for controlling and applying the gas fertilizer for the substrate cultivation, which comprises the following steps:
Controlling a carbon dioxide concentration sensor to sample the carbon dioxide concentration in the greenhouse so as to calculate the reduction rate of the carbon dioxide concentration;
Controlling the rotating speed of an axial flow fan according to the carbon dioxide concentration reducing rate so as to adjust the air quantity of the axial flow fan which is introduced into the microorganism aerobic reaction layer and realize the carbon dioxide concentration balance in the greenhouse;
a groove is formed in a greenhouse, a microorganism aerobic reaction layer is laid at the bottom of the groove, padding of the microorganism aerobic reaction layer is composed of agricultural and forestry wastes mixed with microorganism microbial inoculum, and a crop planting layer is laid on the microorganism aerobic reaction layer;
at least one ventilation pipeline penetrates through the crop planting layer and extends to the microorganism aerobic reaction layer;
the axial flow fan is arranged in the ventilation pipeline.
In a third aspect, the present invention provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the above-described method of controlling the application of a substrate cultivation gas fertilizer when executing the program.
In a fourth aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above-described substrate cultivation gas fertilizer application method.
According to the substrate cultivation gas fertilizer control device, method, electronic equipment and storage medium provided by the invention, when the concentration of carbon dioxide in a greenhouse is insufficient, the axial flow fan is controlled to introduce air into the microorganism aerobic reaction layer so as to control the microorganism aerobic reaction layer to perform fermentation decomposition reaction, release carbon dioxide for photosynthesis of crops and heat required by life activities of crops, ensure the balance of the concentration of carbon dioxide in the greenhouse and normal growth of crops, improve the utilization rate of carbon dioxide and reduce the emission of greenhouse gases in the recycling process of agricultural and forestry wastes.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a matrix cultivation gas fertilizer control application device provided by the invention;
FIG. 2 is one of the schematic structural diagrams of the device for controlling the application of the gas fertilizer for the substrate cultivation;
FIG. 3 is a schematic flow chart of controlling the rotational speed of an axial flow fan according to the present invention;
FIG. 4 is a second schematic structural view of the device for controlling the application of the gas fertilizer for substrate cultivation provided by the invention;
FIG. 5 is a third schematic structural view of the device for controlling the application of the gas fertilizer for substrate cultivation provided by the invention;
FIG. 6 is a schematic diagram of a flow chart for determining oxygen supply rate according to the present invention;
FIG. 7 is a schematic flow chart of a method for controlling the application of the gas fertilizer for the substrate cultivation;
Fig. 8 is a schematic structural diagram of an electronic device provided by the present invention;
Wherein, the reference numerals are as follows:
11: a microbial aerobic reaction layer; 12: a crop planting layer; 13: a ventilation duct; 14: an axial flow fan; 20: a controller; 21: a carbon dioxide concentration sensor; 41: an oxygen concentration sensor; 51: an organic matter concentration sensor; 52: a temperature sensor; 53: a moisture detection sensor; 54: a biosensor; 810: a processor; 820: a communication interface; 830: a memory; 840: a communication bus.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that in the description of the present invention, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and to simplify the description, and are not indicative or implying that the apparatus or elements in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. The terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless otherwise specifically defined and limited; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The substrate cultivation gas fertilizer application device, method, electronic equipment and storage medium provided by the invention are described below with reference to fig. 1-8.
FIG. 1 is a cross-sectional view of a substrate cultivation gas fertilizer control applicator provided by the present invention, as shown in FIG. 1, including but not limited to the following structures: a trench (not shown in fig. 1), a microorganism aerobic reaction layer 11, a crop planting layer 12, at least one ventilation pipe 13, an axial flow fan 14, and a controller (not shown in fig. 1).
The groove is formed in the greenhouse; the microbial aerobic reaction layer 11 is paved at the bottom of the groove, and the padding of the microbial aerobic reaction layer 11 is formed by agricultural and forestry wastes mixed with microbial agents; the crop planting layer 12 is paved on the microorganism aerobic reaction layer 11; at least one ventilation pipeline 13 penetrates through the crop planting layer 12 and extends to the microorganism aerobic reaction layer 11, and an axial flow fan 14 is arranged in the ventilation pipeline 13; the controller is used for controlling the rotating speed of the axial flow fan 14 according to the carbon dioxide concentration reducing rate in the greenhouse so as to adjust the air quantity of the axial flow fan 14 introduced into the microorganism aerobic reaction layer 11 and realize the carbon dioxide concentration balance in the greenhouse.
The agricultural and forestry waste refers to a large amount of waste generated in the agricultural production process, and comprises, but is not limited to, straws of grain crops such as corn and wheat, vines of vegetable crops such as cucumber and tomato, pruned branches, grass scraps and fallen leaves generated in the processes of pruning fruit trees and garden trees, changing seasons and the like, livestock and poultry manure generated by livestock and poultry farms and the like.
The microbial agent is a microorganism which can decompose agricultural and forestry waste which is not easy to decompose into effective fertilizer components and humus through fermentation, so that the agricultural and forestry waste which is rich in organic matters is recycled and subjected to harmless treatment.
The microbial agent may contain one or more microorganisms, and specifically may be a microorganism capable of decomposing, such as filamentous fungi, yeasts, actinomycetes, bacteria, and the like.
Specifically, the microorganism aerobic reaction layer 11 and the crop planting layer 12 are installed in a greenhouse planting area in a ditching and burying mode.
For example, a groove with the width of about 30cm and the depth of about 40cm is formed in the greenhouse, and a microorganism aerobic reaction layer 11 with the thickness of about 15cm to 20cm is laid at the bottom of the groove, wherein the padding of the microorganism aerobic reaction layer 11 is agricultural and forestry waste mixed with the microorganism microbial inoculum.
A crop planting layer 12 with a thickness of about 20cm is laid on the microorganism aerobic reaction layer 11, and the crop planting layer 12 is composed of artificial matrix cultivated by soilless matrix.
The agricultural and forestry waste in the microorganism aerobic reaction layer 11 is subjected to fermentation and aerobic decomposition reaction under the action of the microorganism microbial inoculum, carbon dioxide can be generated, and carbon dioxide generated by the fermentation decomposition reaction can provide carbon fertilizer for crop photosynthesis by paving the crop planting layer 12 below the microorganism aerobic reaction layer 11, and the generated heat can be used as heat required by crop life activities, so that agricultural cycle production is realized.
Of course, the width and depth of the trench opening are not limited to the parameters determined in the above embodiments, and specific opening and laying parameters can be determined according to the types of crops planted, agricultural and forestry wastes used by the microorganism aerobic reaction layer, the microorganism microbial inoculum, the geographical location of the greenhouse and other practical production factors, which are not limited in the invention.
In one embodiment, the artificial substrate comprising crop-growing layer 12 includes, but is not limited to, one or more of perlite, vermiculite, and other minerals, turfy soil, or commodity organic substrates that have been subjected to a high temperature calcination process.
In another embodiment, the artificial substrate constituting the crop-growing layer 12 is constituted by the padding of the fully fermented and decomposed microbial aerobic reaction layer 11.
The padding of the microbial aerobic reaction layer 11 after full fermentation and decomposition is used as the artificial substrate of the crop planting layer 12, so that the recycling and harmless treatment of agricultural and forestry waste are further realized, the production cost of purchasing the artificial substrate by a planter is reduced, and the popularization and application of the soilless substrate cultivation mode are facilitated.
As an alternative embodiment, a bottom isolation layer and a side wall isolation layer are paved in the groove;
the microbial aerobic reaction layer is positioned above the bottom isolation layer.
The isolation layers are paved at the bottom and the side walls in the grooves, so that the microbial aerobic reaction layer 11 and the crop planting layer 12 are protected, and isolation belts are formed with the surrounding soil, so that the invasion of plant diseases and insect pests to the normal growth of crops is avoided.
Specifically, the bottom isolation layer and the side wall isolation layer laid in the groove can be made of high-density geotextile cloth, plastic cloth and other materials, and the invention is not limited to this.
After the microbial aerobic reaction layer 11 and the crop planting layer 12 are laid, at least one ventilation pipe 13 is installed, and the ventilation pipe 13 penetrates through the crop planting layer 12 and extends to the microbial aerobic reaction layer 11. It should be noted that the ventilation pipe 13 does not penetrate the microbial aerobic reaction layer 11.
The ventilation pipeline 13 is also provided with an axial flow fan 14, the axial flow fan 14 is connected with a controller, the controller can control the rotating speed of the axial flow fan 14 according to the carbon dioxide concentration reduction rate in the greenhouse, and then the air quantity of the axial flow fan 14 introduced into the microorganism aerobic reaction layer 11 is adjusted, so that the carbon dioxide concentration balance in the greenhouse is realized.
It will be appreciated that the controller and the axial flow fan 14 may be connected by way of electrical connection, wire harness connection, signal wire connection, etc., which is not a limitation of the present invention.
Under greenhouse conditions, crop plants need to absorb carbon dioxide from the air for photosynthesis, and synthetic carbohydrates meet their own growth and metabolic needs.
During the day, the carbon dioxide concentration in the greenhouse generally follows the following law of variation:
after closing the greenhouse in the afternoon, carbon dioxide released by the decomposition of the organic matters is continuously accumulated at night along with the respiration of the crop plants, and the maximum value is reached before the heat preservation quilt is pulled away in the next day;
After the heat preservation quilt is pulled away, the concentration of carbon dioxide in the greenhouse is quickly lower than that in the atmosphere outside the greenhouse along with continuous enhancement of photosynthesis of crops;
During the period, the air port can be pulled to ventilate, and the carbon dioxide concentration in the greenhouse is slightly increased due to the entering of carbon dioxide in the atmosphere outside the greenhouse, but the carbon dioxide concentration in the greenhouse is maintained at a level lower than the carbon dioxide concentration outside the greenhouse until the heat preservation quilt is put down in the afternoon and photosynthesis is gradually stopped, so that the carbon dioxide concentration is in a deficiency state;
and (3) until the heat preservation quilt is pulled open the next day, the concentration of carbon dioxide in the greenhouse reaches the maximum value, and the cycle is repeated.
Furthermore, in a low-temperature environment in winter, the air port cannot be pulled to ventilate, or the air port can be pulled slightly to ventilate only in a short time, carbon dioxide in the greenhouse is limited by supplementing the outside atmosphere, and the condition that the concentration of the carbon dioxide in the greenhouse is too low and the growth and the yield of crops are influenced easily occurs.
In addition, when the tuyere is pulled to ventilate, abrupt changes of temperature and humidity in the greenhouse can be caused, adverse effects can be generated on the growth of crops, such as frost damage or growth and development retardation of the crops, external pathogens and pests can be introduced, and the risk of the crops being affected by the diseases and the pests is increased.
The existing soilless substrate cultivation mode of the greenhouse is an uncontrollable process when organic fertilizers are generated by using the decomposition of agricultural and forestry waste, and the carbon fertilizer requirement and the carbon dioxide concentration change rule of crop photosynthesis in the greenhouse are not considered, so that the process that the carbon dioxide is released by aerobic decomposition reaction of the agricultural and forestry waste and the photosynthesis absorption of the crops is not synchronous, the condition that the normal growth of the crops is influenced due to lower carbon dioxide concentration in the greenhouse easily occurs, and a plurality of carbon dioxide which is not utilized in time is discharged while the utilization rate of the carbon dioxide is influenced.
According to the invention, the ventilation pipeline and the axial flow fan are arranged, when the concentration of carbon dioxide in the greenhouse is insufficient, the controller is used for controlling the running rotating speed of the axial flow fan, so that the axial flow fan is controlled to actively introduce air and corresponding air quantity into the microorganism aerobic reaction layer, the microorganism aerobic reaction layer is promoted to produce carbon dioxide through fermentation and aerobic decomposition reaction, and the carbon dioxide is applied in the greenhouse in order to meet the carbon fertilizer requirement of crop photosynthesis in the greenhouse, and a self-circulation carbon fertilizer supply system is formed.
In addition, the invention controls the decomposition reaction of the microorganism aerobic reaction layer to generate carbon dioxide by introducing oxygen into the microorganism aerobic reaction layer, and slowly and continuously supplements carbon dioxide to the greenhouse, thereby avoiding abrupt change of the greenhouse environment caused by ventilation between the tuyere and the outside and avoiding adverse effect on the growth of crops.
Meanwhile, heat generated by the decomposition reaction of the microorganism aerobic reaction layer is beneficial to the growth of crops, including but not limited to promoting the germination of crop seeds, stimulating the photosynthesis of crops, accelerating the metabolism of crops and the like.
In one embodiment, the axial flow fan 14 is disposed at the end of the ventilation duct 13 remote from the end of the microbial aerobic reaction layer 11.
In one embodiment, the axial flow fan 14 is a small continuously variable axial flow fan with a check valve.
As an optional embodiment, a plurality of ventilation pipes are arranged in the groove at equal intervals, and the axial flow fan is arranged in each ventilation pipe.
For example, a plurality of ventilation ducts are equidistantly arranged in the trench at a pitch of 1 meter, each ventilation duct penetrating the crop planting layer and extending to the microbial aerobic reaction layer, and each ventilation duct not penetrating the microbial aerobic reaction layer. And, each vent pipe is provided with an axial flow fan.
Optionally, each axial flow fan is arranged at the tail end of one end of the ventilation pipeline far away from the microorganism aerobic reaction layer.
Alternatively, each axial flow fan employs a small continuously variable axial flow fan with a check valve.
Of course, a plurality of ventilation pipelines can be distributed in the grooves at equal intervals according to the equal distances of 0.8 meter, 1.5 meter and 2 meters, and the specific distribution distance can be determined according to the type of the planted crops, the performance parameters of the diversion fans, the geographical position of the greenhouse and other practical production factors, and the invention is not limited to the above.
According to the substrate cultivation gas fertilizer control device, the axial flow fan is arranged and extends to the ventilation pipeline of the microorganism aerobic reaction layer, the agriculture and forestry waste mixed with the microbial inoculum is used as the padding of the microorganism aerobic reaction layer, when the carbon dioxide concentration in a greenhouse is insufficient, the axial flow fan is controlled to introduce air into the microorganism aerobic reaction layer so as to control the microorganism aerobic reaction layer to perform fermentation decomposition reaction, heat required by photosynthesis carbon dioxide and life activities of crops is released, carbon dioxide concentration balance in the greenhouse is ensured, normal growth of crops is ensured, the carbon dioxide utilization rate is improved, and greenhouse gas emission in the agriculture and forestry waste recycling process is reduced.
Fig. 2 is a schematic structural diagram of the device for controlling and applying a gas fertilizer for substrate cultivation provided by the invention, as shown in fig. 2, and further comprises a carbon dioxide concentration sensor 21, wherein the carbon dioxide concentration sensor 21 sends the collected carbon dioxide concentration value in the greenhouse to the controller 20.
The carbon dioxide concentration sensor 21 may be any one of an electrochemical carbon dioxide concentration sensor, an infrared carbon dioxide sensor, an ultraviolet light absorption carbon dioxide sensor, a laser absorption carbon dioxide sensor, and a capacitive carbon dioxide sensor, and the present invention is not limited thereto.
Fig. 3 is a schematic flow chart of controlling the rotation speed of the axial flow fan according to the present invention, as shown in fig. 3, the controller 20 is configured to perform steps including, but not limited to:
Step 301: under the condition that the carbon dioxide concentration value is smaller than a preset carbon dioxide concentration threshold value, determining the carbon dioxide release rate of the aerobic reaction of the padding of the microorganism aerobic reaction layer according to the calculated reduction rate of the carbon dioxide concentration in the greenhouse;
Step 302: determining an oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer according to the carbon dioxide release rate;
step 303: and controlling the rotating speed of the axial flow fan based on the oxygen supply rate.
Specifically, the carbon dioxide concentration sensor 21 collects the real-time concentration of carbon dioxide in the greenhouse, and transmits the collected value of the concentration of carbon dioxide in the greenhouse to the controller 20.
When the received carbon dioxide concentration value in the greenhouse is smaller than the preset carbon dioxide concentration threshold value, the controller 20 calculates the reduction rate of the carbon dioxide concentration in the greenhouse according to the received carbon dioxide concentration value in the greenhouse within a period of time, and determines the release rate of the carbon dioxide, which is generated by the aerobic reaction of the padding of the microorganism aerobic reaction layer, according to the reduction rate of the carbon dioxide concentration in the greenhouse, so that the balance of the carbon dioxide concentration in the greenhouse is realized.
The controller 20 calculates the oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer according to the calculated carbon dioxide release rate, so that the carbon dioxide release rate of the mat material of the microorganism aerobic reaction layer can meet the requirement of carbon dioxide concentration balance in the greenhouse.
Finally, the controller 20 determines the rotational speed of the axial flow fan based on the calculated oxygen supply rate in combination with the performance parameters of the axial flow fan.
In an embodiment, if the carbon dioxide concentration value received by the controller is higher than the preset carbon dioxide concentration threshold value, it indicates that the carbon dioxide content in the greenhouse is sufficient, and the carbon dioxide is not required to be supplemented into the greenhouse.
In one embodiment, the controller determines the rate of decrease of the carbon dioxide concentration in the greenhouse from the received carbon dioxide concentration value as follows:
；(1)
Wherein, For the rate of decrease of carbon dioxide concentration in the greenhouse,/>For the volume of the greenhouse,/>For the controller to determine the concentration of carbon dioxide according to the received value of the concentration of the carbon dioxide/(Is time.
In one embodiment, the calculation formula for determining the carbon dioxide release rate of the mat of the microbial aerobic reaction layer for the aerobic reaction according to the carbon dioxide concentration reduction rate in the greenhouse is as follows:
；(2)
Wherein, The release rate of carbon dioxide for the aerobic reaction of the microbial oxygen-reactive layer of the mat,For the rate of decrease of carbon dioxide concentration in the greenhouse,/>Is the volume of the microorganism aerobic reaction layer.
In an embodiment, a plurality of carbon dioxide concentration sensors are arranged in the greenhouse, the controller receives the values acquired by the carbon dioxide concentration sensors at the same time, and takes the average value, the median value or the standard deviation of the values as the carbon dioxide concentration value in the greenhouse at the time, so that the situation that the operation result of the device is wrong due to abnormal sampling of a single carbon dioxide concentration sensor can be avoided as much as possible.
FIG. 4 is a schematic diagram of a second embodiment of the device for controlling and applying a gas fertilizer for substrate cultivation provided by the present invention, as shown in FIG. 4, further comprising, the oxygen concentration sensor 41 sending the collected value of the oxygen concentration in the greenhouse to the controller 20;
The controller 20 controls the rotational speed of the axial flow fan 14 based on the oxygen supply rate calculated based on the following mathematical model:
；(3)
Wherein, For the oxygen loss factor which is transported into the microorganism aerobic reaction layer and cannot be consumed by the microorganism,/>Is the air quantity conversion coefficient between the fan rotating speed and the air supply quantity of the axial flow fan, i.e./>For the oxygen concentration value,/>For the oxygen supply rate of the axial flow fan,/>The rotational speed of the axial flow fan.
In one embodiment, the oxygen loss factorThe range of the value of (2) is 1.3-1.5.
In an embodiment, the air volume conversion coefficient between the fan speed and the air supply volume of the axial flow fan is obtained by inquiring nameplate information or instruction information of the axial flow fan.
In an embodiment, a plurality of oxygen concentration sensors are arranged in the greenhouse, the controller receives the values acquired by the plurality of oxygen sensors at the same time, and takes the average value, the median value or the standard deviation of the values as the oxygen concentration value in the greenhouse at the time, so that the situation that the operation result of the device is wrong due to abnormal sampling of a single oxygen sensor can be avoided as much as possible.
When the carbon dioxide concentration in the greenhouse is lower than the threshold value, the carbon dioxide release rate of the aerobic reaction of the microbial aerobic reaction layer padding is determined according to the reduction rate of the carbon dioxide concentration in the greenhouse, so that the oxygen supply rate of the microbial aerobic reaction layer is determined, air is introduced into the microbial aerobic reaction layer according to the oxygen supply rate by starting the axial flow fan of the ventilation pipeline, the microorganisms in the microbial aerobic reaction layer are activated by utilizing the oxygen in the air to perform aerobic decomposition reaction, organic matters in the padding are decomposed, and then the carbon dioxide is released at the corresponding carbon dioxide release rate, so that the balance of the carbon dioxide concentration in the greenhouse is realized, and the influence of the too low carbon dioxide concentration on the growth of crops is avoided.
Fig. 5 is a third schematic structural view of the device for controlling and applying a gas fertilizer for substrate cultivation provided by the invention, as shown in fig. 5, further comprising: an organic matter concentration sensor 51, a temperature sensor 52, a moisture detection sensor 53, a biosensor 54, which are arranged in the pad material of the microbial aerobic reaction layer; the organic matter concentration sensor 51 is used for acquiring the organic matter concentration of the packing, the temperature sensor 52 is used for acquiring the temperature of the packing, the moisture detection sensor 53 is used for acquiring the moisture content of the packing, and the biological sensor 54 is used for acquiring the microorganism concentration of the packing.
Fig. 6 is a schematic flow chart of determining an oxygen supply rate according to the present invention, as shown in fig. 6, corresponding to the substrate cultivation gas fertilizer control device provided in fig. 5, the controller determines an oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer according to the carbon dioxide release rate, and specifically includes:
forming an input vector from the concentration of the organic matters, the temperature of the padding, the water content, the concentration of the microorganisms and the release rate of the carbon dioxide, which are acquired in real time;
Inputting the input vector into a pre-trained microorganism aerobic reaction rate model, and obtaining an output vector output by the microorganism aerobic reaction rate model;
The output vector comprises a rate of organic degradation of the litter, a rate of net microbial proliferation of the litter, and a rate of oxygen consumption within the greenhouse;
And determining the oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer according to the oxygen consumption rate.
The microbial aerobic reaction rate model is a quantitative relation between the carbon dioxide release rate of aerobic reaction of the padding of the microbial aerobic reaction layer and the oxygen consumption rate in the greenhouse.
The biosensor is a sensor for detecting the concentration of microorganisms in the mat. Specifically, the biosensor is an instrument which is sensitive to biological substances and can convert the concentration of the biological substances into electric signals for detection, and generally comprises components such as an immobilized biological sensitive material (such as bioactive substances of enzymes, antibodies, antigens, microorganisms, cells, tissues, nucleic acids and the like) serving as a recognition element, a proper physicochemical transducer (such as an oxygen electrode, a photosensitive tube, a field effect tube, a piezoelectric crystal and the like), a signal amplifying device, a result display device and the like, so as to form an analysis tool or system with the functions of a receiver and a converter.
The biosensor includes, but is not limited to, one or more of a bioelectrode sensor, a semiconductor biosensor, an optical biosensor, a thermal biosensor, a piezoelectric crystal biosensor, and the like.
Specifically, an input vector is constructed by utilizing the collected real-time organic matter concentration, real-time temperature, real-time water content and real-time microorganism concentration of the padding and the carbon dioxide release rate in the greenhouse calculated according to the real-time carbon dioxide concentration value in the greenhouse, the input vector is input into a pre-trained microorganism aerobic reaction rate model, so that the oxygen consumption rate in the greenhouse, the organic matter degradation rate of the padding and the microorganism net increment rate data corresponding to the real-time decomposition reaction conditions of the greenhouse and the microorganism aerobic reaction layer are obtained, and the oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer is determined according to the oxygen consumption rate output by the model.
In one embodiment, the oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer is equal to the oxygen consumption rate outputted by the microorganism aerobic reaction rate model.
In one embodiment, the oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer is larger than the oxygen consumption rate output by the microorganism aerobic reaction rate model, and the oxygen consumption rate is in a linear relation.
In another embodiment, the organic concentration of the litter is determined based on the principles of aerobic decomposition reactions. Specifically, the initial organic matter concentration of the padding is known, the concentration change value of carbon dioxide in the greenhouse is acquired through a carbon dioxide concentration sensor, and the carbon dioxide amount generated by the aerobic decomposition reaction of the padding is determined according to the greenhouse volume. And then deducing the consumption of organic matters in the padding according to the generated carbon dioxide based on the principle of aerobic decomposition reaction, and further deducing the concentration of the organic matters in the padding.
In one embodiment, the pre-training of the microorganism aerobic reaction rate model may be based on one or more of neural network algorithms such as graph neural network (Graph Neural Network, GNN), attention mechanism (Attention Mechanism), circulatory neural network (Recurrent Neural Network, RNN), long Short-term memory network (Long Short-Term Memory networks, LSTM), etc.
As an alternative embodiment, the microorganism aerobic reaction rate model is obtained by training a mixed model comprising a plurality of graph neural networks (Graph Neural Network, GNN) and an attention mechanism (Attention Mechanism) by using a pre-constructed training sample set;
The training sample set includes a plurality of input vector samples and an output vector label corresponding to each of the input vector samples.
In order to optimize carbon dioxide concentration control in a greenhouse, the invention provides a hybrid model based on a graph neural network and an attention mechanism, which combines an adaptive regulation algorithm and a multi-task learning strategy. Firstly, capturing complex interactions among all environmental factors in a microorganism aerobic reaction layer by utilizing a graph neural network; secondly, identifying key factors with the greatest influence on the carbon dioxide release rate through an attention mechanism; then, introducing a self-adaptive adjustment algorithm, dynamically optimizing model parameters according to the deviation of a prediction result and an actual monitoring value, and adjusting the rotating speed of the axial flow fan in real time; and finally, a multitask learning method is adopted, the microbial reaction rate and the demand of crops on carbon dioxide are simultaneously predicted, and the accuracy and generalization capability of model prediction are improved through collaborative learning.
Specifically, the pre-training of the microorganism aerobic reaction rate model includes, but is not limited to, the following steps:
The organic matter concentration, temperature, water content and microorganism concentration data of the mat are acquired by using an organic matter concentration sensor 51, a temperature sensor 52, a water content detection sensor 53 and a biological sensor 54 which are arranged in the mat of the microorganism aerobic reaction layer, and are used as node characteristics of the graph neural network. Under the condition that the graphic neural network can effectively process data of non-Euclidean space, the data of each sensor is used as node characteristics, and the topological structure and the relevance of various factors in the padding can be well captured.
The carbon dioxide concentration value in the greenhouse is acquired by using a carbon dioxide concentration sensor arranged in the greenhouse, then the controller determines the carbon dioxide release rate of the aerobic reaction of the padding of the microorganism aerobic reaction layer through the calculation formulas (1) and (2) in the embodiment, takes the rate as the edge characteristic of the graph neural network, dynamically updates the weight of the edge by using the graph neural network, and reflects the contribution degree of various factors in the padding to the carbon dioxide release rate.
The complex interactions between the environmental factors in the microbial aerobic reaction layer are captured by using the graph neural network, and at least one key factor with the greatest influence on the carbon dioxide release rate is identified through an attention mechanism.
The key factors identified by the graphic neural network and the attention mechanism are taken as an input vector sample, the organic matter degradation rate of the padding at the moment, the microorganism net increment rate of the padding and the oxygen consumption rate in the greenhouse are taken as output vector labels corresponding to the input vector sample, and different attention weights are distributed in a self-adaptive mode by the attention mechanism, so that important information is highlighted, irrelevant information is restrained, and the expression capacity and interpretation performance of the model are improved.
A training sample set is constructed using a plurality of input vector samples constructed from key factors and an output vector label corresponding to each of the input vector samples. One part of the training sample set is used for model training, namely a training set, and the other part of the training sample set is used for model verification, namely a verification set.
And selecting a hybrid model based on a graph neural network and an attention mechanism as an initial model, constructing a network, initializing, and determining the number of network layers, the number of network neurons of each layer and a transfer function.
And (3) selecting the organic matter concentration, temperature, water content, microorganism concentration and the calculated carbon dioxide release rate at a certain moment from the training set as an input vector, and carrying out normalization processing to prevent fluctuation of predicted data caused by non-uniform order of magnitude of the input vector. The input vector is input into an initial model to obtain an output vector which is output by the initial model and consists of the organic matter degradation rate of the padding, the microorganism net increment rate of the padding and the oxygen consumption rate in the greenhouse, the output vector (predicted result) is compared with an output vector label (actually measured result) corresponding to the input vector sample, and weight self-adaptive adjustment is carried out according to the compared difference condition until the preset precision is met. The self-adaptive adjustment algorithm dynamically adjusts the learning rate and the optimizer of the model according to the size and the direction of the prediction error, and accelerates the convergence rate and the stability of the model.
And selecting an input vector sample and a corresponding output vector label from the verification set to verify the model, thereby completing the pre-construction and training of the microorganism aerobic reaction rate model.
The matrix cultivation gas fertilizer control device provided by the invention optimizes the carbon dioxide concentration control in a greenhouse by combining an adaptive regulation algorithm and a multitask learning strategy through utilizing a plurality of mixed models consisting of a graphic neural network and an attention mechanism, wherein the output vector consists of the organic matter degradation rate of the padding, the microorganism net increment rate of the padding and the oxygen consumption rate in the greenhouse. The method and the device have the advantages that main influencing factors of aerobic decomposition reaction of agricultural and forestry waste and specific application conditions of the device provided by the invention are fully considered, the rotating speed of the axial flow fan is adjusted in real time, meanwhile, the microbial reaction rate and the demand of crops on carbon dioxide are predicted, and the accuracy and the generalization capability of model prediction are improved through collaborative learning.
Fig. 7 is a schematic flow chart of the method for controlling the application of the air fertilizer for the substrate cultivation provided by the invention, as shown in fig. 7, including but not limited to the following steps:
Controlling a carbon dioxide concentration sensor to sample the carbon dioxide concentration in the greenhouse so as to calculate the reduction rate of the carbon dioxide concentration;
Controlling the rotating speed of an axial flow fan according to the carbon dioxide concentration reducing rate so as to adjust the air quantity of the axial flow fan which is introduced into the microorganism aerobic reaction layer and realize the carbon dioxide concentration balance in the greenhouse;
a groove is formed in a greenhouse, a microorganism aerobic reaction layer is laid at the bottom of the groove, padding of the microorganism aerobic reaction layer is composed of agricultural and forestry wastes mixed with microorganism microbial inoculum, and a crop planting layer is laid on the microorganism aerobic reaction layer;
at least one ventilation pipeline penetrates through the crop planting layer and extends to the microorganism aerobic reaction layer;
the axial flow fan is arranged in the ventilation pipeline.
It should be noted that, the method for controlling and applying the gas fertilizer for the substrate cultivation provided by the invention can be executed by the device for controlling and applying the gas fertilizer for the substrate cultivation described in any embodiment, and the detailed description of the specific operation flow is omitted.
According to the substrate cultivation gas fertilizer control application method provided by the invention, when the concentration of carbon dioxide in the greenhouse is insufficient, the axial flow fan is controlled to introduce air into the microorganism aerobic reaction layer so as to control the microorganism aerobic reaction layer to perform fermentation decomposition reaction, release carbon dioxide for photosynthesis of crops and heat required by life activities of crops, ensure the balance of the concentration of carbon dioxide in the greenhouse and normal growth of crops, improve the utilization rate of carbon dioxide and reduce the emission of greenhouse gases in the recycling process of agricultural and forestry wastes.
Fig. 8 is a schematic structural diagram of an electronic device according to the present invention, as shown in fig. 8, the electronic device may include: processor 810, communication interface (Communications Interface) 820, memory 830, and communication bus 840, wherein Processor 810, communication interface 820, memory 830 accomplish communication with each other through communication bus 840. The processor 810 may invoke logic instructions in the memory 830 to perform a matrix cultivation gas fertilizer application method comprising: controlling a carbon dioxide concentration sensor to sample the carbon dioxide concentration in the greenhouse so as to calculate the reduction rate of the carbon dioxide concentration; controlling the rotating speed of an axial flow fan according to the carbon dioxide concentration reducing rate so as to adjust the air quantity of the axial flow fan which is introduced into the microorganism aerobic reaction layer and realize the carbon dioxide concentration balance in the greenhouse; a groove is formed in a greenhouse, a microorganism aerobic reaction layer is laid at the bottom of the groove, padding of the microorganism aerobic reaction layer is composed of agricultural and forestry wastes mixed with microorganism microbial inoculum, and a crop planting layer is laid on the microorganism aerobic reaction layer; at least one ventilation pipeline penetrates through the crop planting layer and extends to the microorganism aerobic reaction layer; the axial flow fan is arranged in the ventilation pipeline.
Further, the logic instructions in the memory 830 described above may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the method for controlling the air and fertilizer application for substrate cultivation provided in the above embodiments, the method comprising: controlling a carbon dioxide concentration sensor to sample the carbon dioxide concentration in the greenhouse so as to calculate the reduction rate of the carbon dioxide concentration; controlling the rotating speed of an axial flow fan according to the carbon dioxide concentration reducing rate so as to adjust the air quantity of the axial flow fan which is introduced into the microorganism aerobic reaction layer and realize the carbon dioxide concentration balance in the greenhouse; a groove is formed in a greenhouse, a microorganism aerobic reaction layer is laid at the bottom of the groove, padding of the microorganism aerobic reaction layer is composed of agricultural and forestry wastes mixed with microorganism microbial inoculum, and a crop planting layer is laid on the microorganism aerobic reaction layer; at least one ventilation pipeline penetrates through the crop planting layer and extends to the microorganism aerobic reaction layer; the axial flow fan is arranged in the ventilation pipeline.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A substrate cultivation gas fertilizer control device, characterized by comprising:
Grooves are formed in the greenhouse;
the microbial aerobic reaction layer is laid at the bottom of the groove, and the padding of the microbial aerobic reaction layer is composed of agricultural and forestry waste mixed with microbial agents;
the crop planting layer is paved on the microorganism aerobic reaction layer;
At least one ventilation pipeline penetrating the crop planting layer and extending to the microorganism aerobic reaction layer, wherein an axial flow fan is arranged in the ventilation pipeline;
And the controller is used for controlling the rotating speed of the axial flow fan according to the carbon dioxide concentration reduction rate in the greenhouse so as to adjust the air quantity of the axial flow fan introduced into the microorganism aerobic reaction layer and realize the carbon dioxide concentration balance in the greenhouse.
2. The substrate cultivation gas fertilizer application device according to claim 1, further comprising a carbon dioxide concentration sensor, wherein the carbon dioxide concentration sensor sends the collected carbon dioxide concentration value in the greenhouse to the controller;
the controller is used for executing the following operations:
under the condition that the carbon dioxide concentration value is smaller than a preset carbon dioxide concentration threshold value, determining the carbon dioxide release rate of the aerobic reaction of the padding of the microorganism aerobic reaction layer according to the calculated reduction rate of the carbon dioxide concentration in the greenhouse;
Determining an oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer according to the carbon dioxide release rate;
and controlling the rotating speed of the axial flow fan based on the oxygen supply rate.
3. The substrate cultivation gas fertilizer application device according to claim 2, further comprising an organic matter concentration sensor, a temperature sensor, a moisture detection sensor, a biosensor arranged in the mat of the microbial aerobic reaction layer; the organic matter concentration sensor is used for acquiring the organic matter concentration of the padding, the temperature sensor is used for acquiring the temperature of the padding, the moisture detection sensor is used for acquiring the moisture content of the padding, and the biological sensor is used for acquiring the microorganism concentration of the padding;
correspondingly, the controller determines the oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer according to the carbon dioxide release rate, and specifically comprises the following steps:
forming an input vector from the concentration of the organic matters, the temperature of the padding, the water content, the concentration of the microorganisms and the release rate of the carbon dioxide, which are acquired in real time;
Inputting the input vector into a pre-trained microorganism aerobic reaction rate model, and obtaining an output vector output by the microorganism aerobic reaction rate model;
The output vector comprises a rate of organic degradation of the litter, a rate of net microbial proliferation of the litter, and a rate of oxygen consumption within the greenhouse;
And determining the oxygen supply rate for supplying oxygen to the microorganism aerobic reaction layer according to the oxygen consumption rate.
4. The device for controlling and applying the gas fertilizer for the substrate cultivation according to claim 3, wherein the microorganism aerobic reaction rate model is obtained by training a mixed model comprising a plurality of graphic neural networks and an attention mechanism by utilizing a pre-constructed training sample set;
The training sample set includes a plurality of input vector samples and an output vector label corresponding to each of the input vector samples.
5. The substrate cultivation gas fertilizer application device according to any one of claims 2 to 4, further comprising an oxygen concentration sensor, wherein the oxygen concentration sensor sends the collected value of the concentration of oxygen in the greenhouse to the controller;
The controller controls the rotating speed of the axial flow fan based on the oxygen supply rate, which is calculated based on the following mathematical model:
；
Wherein, For the oxygen loss factor which is transported into the microorganism aerobic reaction layer and cannot be consumed by the microorganism,/>Is the air quantity conversion coefficient between the fan rotating speed and the air supply quantity of the axial flow fan, i.e./>For the oxygen concentration value,/>For the oxygen supply rate of the axial flow fan,/>The rotational speed of the axial flow fan.
6. The substrate cultivation gas fertilizer application device according to claim 1, wherein a plurality of the ventilation pipes are provided, the ventilation pipes are arranged in the groove at equal intervals, and the axial flow fan is arranged in each ventilation pipe.
7. The substrate cultivation gas fertilizer application device according to claim 1, wherein a bottom isolation layer and a side wall isolation layer are laid in the groove;
the microbial aerobic reaction layer is positioned above the bottom isolation layer.
8. The method for controlling and applying the gas fertilizer for the substrate cultivation is characterized by comprising the following steps of:
Controlling a carbon dioxide concentration sensor to sample the carbon dioxide concentration in the greenhouse so as to calculate the reduction rate of the carbon dioxide concentration;
Controlling the rotating speed of an axial flow fan according to the carbon dioxide concentration reducing rate so as to adjust the air quantity of the axial flow fan which is introduced into the microorganism aerobic reaction layer and realize the carbon dioxide concentration balance in the greenhouse;
a groove is formed in a greenhouse, a microorganism aerobic reaction layer is laid at the bottom of the groove, padding of the microorganism aerobic reaction layer is composed of agricultural and forestry wastes mixed with microorganism microbial inoculum, and a crop planting layer is laid on the microorganism aerobic reaction layer;
at least one ventilation pipeline penetrates through the crop planting layer and extends to the microorganism aerobic reaction layer;
the axial flow fan is arranged in the ventilation pipeline.
9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method of matrix cultivation gas and fertilizer application of claim 8.
10. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the method of matrix cultivation gas fertilizer application of claim 8.
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