CN112573970A - Solid-state compound microbial foliar fertilizer for improving saline-alkali soil and application thereof - Google Patents
Solid-state compound microbial foliar fertilizer for improving saline-alkali soil and application thereof Download PDFInfo
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Abstract
The invention discloses a solid compound microbial foliar fertilizer for improving saline-alkali soil and application thereof. The raw material components by weight are as follows: 5-15 parts of composite microbial inoculum, 5-10 parts of brown sugar, 10-20 parts of urea, 2.0-3.0 parts of monopotassium phosphate and 55-80 parts of soluble starch. When the saline-alkali soil is improved, the solid-state compound microorganism foliar fertilizer is diluted by more than 50 times by using clear water every time and then sprayed on leaves of crops growing in the saline-alkali soil, or the fertilizer is diluted by 5 times by using the clear water every time in a strong dew period and then sprayed on the leaves of the crops by using an airplane, wherein the application amount of each time is 15-30kg/hm2. The invention can reduce the salt content and pH value of the saline-alkali soil, promote the growth of crops, improve the yield of the crops and improve the soil structure and ecological environment of the saline-alkali soil.
Description
Technical Field
The invention belongs to the technical field of saline-alkali soil improvement, and particularly relates to a solid-state compound microbial foliar fertilizer for improving saline-alkali soil and application thereof.
Background
Saline-alkali soil is a general term for various salinized soil and alkaline soil. The saline-alkali soil contains a large amount of soluble salts, the pH value of the soil can reach 9.0, the agricultural development and the forestry production are seriously damaged, and the ecological system is damaged. The saline-alkali soil is widely distributed in China, and the area of the saline-alkali soil is one fifth of that of cultivated land in China. Therefore, the development and utilization of saline-alkali soil have important significance for increasing the cultivated land area of China and the sustainable development of agriculture.
At present, the saline-alkali soil improvement method comprises chemical improvement, physical improvement, biological improvement, hydraulic engineering improvement and the like. Wherein the biological modification has the characteristics of high desalination rate, durability and stability, and the biological modification does not destroy ecological balance. The fertilizer containing useful microorganisms is applied to crops planted in saline-alkali soil, so that the growth of the crops is promoted, and the improvement of the saline-alkali soil is an important biological improvement measure.
Disclosure of Invention
The invention aims to provide a solid compound microbial foliar fertilizer for improving saline-alkali soil and application thereof, which can promote the growth of crops planted in the saline-alkali soil, thereby reducing the salt content and pH value of the saline-alkali soil.
In one aspect, the invention provides a solid compound microbial foliar fertilizer for improving saline-alkali soil, which comprises a compound microbial inoculum, brown sugar, urea, monopotassium phosphate and soluble starch.
Preferably, the solid compound microbial foliar fertilizer comprises, by weight, 5-15 parts of the compound microbial inoculum, 5-10 parts of brown sugar, 10-20 parts of urea, 2.0-3.0 parts of monopotassium phosphate and 55-80 parts of soluble starch.
Preferably, the solid compound microbial foliar fertilizer comprises 5 parts of the compound microbial inoculum, 7 parts of brown sugar, 10 parts of urea, 2.2 parts of monopotassium phosphate and 55 parts of soluble starch by weight.
Preferably, the solid compound microbial foliar fertilizer comprises 9 parts of the compound microbial inoculum, 5 parts of brown sugar, 14 parts of urea, 2.0 parts of monopotassium phosphate and 66 parts of soluble starch by weight.
Preferably, the solid compound microbial foliar fertilizer comprises 13 parts of the compound microbial inoculum, 10 parts of brown sugar, 17 parts of urea, 2.5 parts of monopotassium phosphate and 76 parts of soluble starch by weight.
Preferably, the solid compound microbial foliar fertilizer comprises 15 parts of the compound microbial inoculum, 9 parts of brown sugar, 20 parts of urea, 2.3 parts of monopotassium phosphate and 80 parts of soluble starch by weight.
Preferably, the complex microbial inoculum comprises aspergillus glaucous, polyporus pinus, verticillium chlamydosporium, lactobacillus delbrueckii, saccharomyces cerevisiae and penicillium oxalicum.
Preferably, the content of the Aspergillus glaucopiae is more than or equal to 3.5 multiplied by 109cfu/g, the bacterium content of the polyporus pinus is more than or equal to 2.0 multiplied by 109cfu/g, the bacterial content of the verticillium chlamydosporium is more than or equal to 1.0 multiplied by 109cfu/g, the bacterium content of the lactobacillus delbrueckii is more than or equal to 2.0 multiplied by 1011cfu/g, the bacteria content of the saccharomyces cerevisiae is more than or equal to 4.5 multiplied by 109cfu/g, the bacterial content of the penicillium oxalicum is more than or equal to 1.5 multiplied by 109cfu/g。
On the other hand, the invention also provides the application of the solid compound microbial foliar fertilizer, wherein the solid compound microbial foliar fertilizer is diluted by more than 50 times with clear water and then sprayed on leaves of crops growing in saline-alkali soil each time the solid compound microbial foliar fertilizer is applied, or the solid compound microbial foliar fertilizer is diluted by 5 times with clear water and then sprayed on the leaves of the crops in a strong dew period.
Preferably, the application amount of the solid compound microbial foliar fertilizer is 15-30L/hm once2。
The solid compound microbial foliar fertilizer can promote the growth of crops planted in saline-alkali soil, thereby reducing the salt content and pH value of the saline-alkali soil and improving the soil structure and ecological environment of the saline-alkali soil.
Detailed Description
The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. It should be understood that the examples are illustrative only and are not limiting upon the scope of the invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
In the following description, all methods involved are conventional in the art unless otherwise specified. The starting materials mentioned are all those which are commercially available from the public unless otherwise specified.
According to the invention, brown sugar, urea, monopotassium phosphate, soluble starch and a compound microbial inoculum are proportioned according to a certain proportion and then mixed to obtain the solid compound microbial foliar fertilizer for improving saline-alkali soil. The foliar fertilizer is sprayed on crops planted in saline-alkali soil, and can promote the growth of the crops, thereby reducing the salt content and pH value of the saline-alkali soil, and improving the soil structure and ecological environment of the saline-alkali soil.
In a specific embodiment of the invention, the solid compound microbial foliar fertilizer for improving the saline-alkali soil is prepared by mixing raw materials consisting of a compound microbial inoculum, brown sugar, urea, monopotassium phosphate and soluble starch. The specific preparation process comprises the following steps: step 1, preparing a complex microbial inoculum; and 2, mixing the raw material components.
In the step 1 of preparing the composite microbial inoculum, Aspergillus glaucus powder, Trichothecium roseum powder, Verticillium chlamydosporium powder, Lactobacillus delbrueckii powder, Saccharomyces cerevisiae powder and Penicillium oxalate powder are selected, and then the composite microbial inoculum is obtained by compounding the six bacterial powders according to the proportioning relationship by weight, preferably 10-25 parts of the Aspergillus glaucus powder, 10-20 parts of the Trichothecium roseum powder, 5-15 parts of the Verticillium chlamydosporium powder, 15-25 parts of the Lactobacillus delbrueckii powder, 10-20 parts of the Saccharomyces cerevisiae powder and 5-15 parts of the Penicillium oxalate powder.
On one hand, lactobacillus delbrueckii and saccharomyces cerevisiae are respectively fermented and cultured in corresponding liquid culture media to obtain bacterial liquids, and then thalli are separated from the fermentation culture and dried and concentrated to prepare single-strain solid bacterial powder. The bacterial contents of the two single bacterial strains are respectively as follows: the content of Lactobacillus delbrueckii powder is not less than 2.0 × 1011The bacterium content of cfu/g and the saccharomyces cerevisiae powder is more than or equal to 4.5 multiplied by 109cfu/g. On the other hand, aspergillus glaucus, polyporus pinkistrolyrius, verticillium chlamydosporium and penicillium oxalicum are fermented in corresponding solid culture media respectively to obtain solid cultures, and then the solid cultures are dried and crushed to prepare single-strain solid bacterial powder. The bacterial content of each single bacterial strain powder is respectively as follows: the bacteria content of the Aspergillus glaucus powder is not less than 3.5 × 109The bacterium content of cfu/g and the powder of the polyporus pinus is more than or equal to 2.0 multiplied by 109cfu/g, the bacterial content of verticillium chlamydosporium powder is more than or equal to 1.0 multiplied by 109cfu/g and the bacterial content of the penicillium oxalicum is more than or equal to 1.5 multiplied by 109cfu/g。
In the step 2 of mixing the raw material components, weighing the raw material components according to a preset weight ratio, and then mixing and uniformly stirring the raw material components to obtain the solid compound microbial foliar fertilizer. The weight ratio of each component in the raw materials is respectively optimized as follows: 5-15 parts of composite microbial inoculum, 5-10 parts of brown sugar, 10-20 parts of urea, 2.0-3.0 parts of monopotassium phosphate and 55-80 parts of soluble starch.
The invention also provides the application of the solid compound microbial foliar fertilizer, when the saline-alkali soil is improved, the solid compound microbial foliar fertilizer is diluted by more than 50 times with clear water each time and then sprayed on leaves of crops growing in the saline-alkali soil, or the solid compound microbial foliar fertilizer is diluted by 5 times with clear water each time and then sprayed on the leaves of the crops in a strong dew period, and preferably sprayed by an airplane. The application amount of the solid compound microbial foliar fertilizer is 15-30L/hm2. When the solid compound microbial foliar fertilizer is preferably continuously applied for more than 3 years, the improvement effect on medium and mild saline-alkali soil is better.
To help better understand the technical solution of the present invention, the following examples are provided for illustrating the preparation process of the solid-state compound microbial foliar fertilizer of the present invention and the application method thereof.
Example one
The raw materials of the solid compound microbial foliar fertilizer comprise, by weight, 5 parts of compound microbial inoculum, 7 parts of brown sugar, 10 parts of urea, 2.2 parts of monopotassium phosphate and 55 parts of soluble starch. The composite microbial agent is prepared by mixing 10 parts of aspergillus glaucus powder, 20 parts of pink polyporus pinicolus powder, 5 parts of verticillium chlamydosporium powder, 19 parts of lactobacillus delbrueckii powder, 20 parts of saccharomyces cerevisiae powder and 13 parts of penicillium oxalate powder. The bacteria content of the six bacteria powder is respectively as follows: the bacteria content of the Aspergillus glaucus powder is not less than 3.5 × 109The bacterium content of cfu/g and the powder of the polyporus pinus is more than or equal to 2.0 multiplied by 109cfu/g, the bacterial content of verticillium chlamydosporium powder is more than or equal to 1.0 multiplied by 109The bacterial content of cfu/g and the bacterial powder of the lactobacillus delbrueckii is more than or equal to 2.0 multiplied by 1011cfu/g, the bacteria content of the saccharomyces cerevisiae powder is more than or equal to 4.5 multiplied by 109cfu/g and the bacterial content of the penicillium oxalicum is more than or equal to 1.5 multiplied by 109cfu/g。
The solid compound microbial foliar fertilizer is prepared by the following steps.
Step 1, preparing a composite microbial inoculum, and uniformly mixing aspergillus glaucus powder, stenotrophospora rosea powder, verticillium chlamydosporium powder, lactobacillus delbrueckii powder, saccharomyces cerevisiae powder and penicillium oxalicum powder to obtain the composite microbial inoculum.
And 2, mixing the raw material components, adding the compound microbial inoculum, brown sugar, urea, monopotassium phosphate and soluble starch together, stirring and uniformly mixing to obtain the solid compound microbial foliar fertilizer 1.
The application method of the solid compound microbial foliar fertilizer 1 comprises the following steps: the solid compound microorganism foliar fertilizer 1 is diluted by 60 times with clear water each time and then sprayed on leaves of crops growing in saline-alkali soil, or the solid compound microorganism foliar fertilizer 1 is diluted by 5 times with clear water each time and then sprayed on the leaves of the crops in the period of strong dew. Solid compound microbial foliage fertilizer1 is 15kg/hm2。
Example two
The raw materials of the solid compound microbial foliar fertilizer comprise, by weight, 9 parts of compound microbial inoculum, 5 parts of brown sugar, 14 parts of urea, 2.0 parts of monopotassium phosphate and 66 parts of soluble starch. The composite microbial agent is prepared by mixing 15 parts of aspergillus glaucus powder, 17 parts of pink polyporus piniperus powder, 7 parts of verticillium chlamydosporium powder, 15 parts of lactobacillus delbrueckii powder, 17 parts of saccharomyces cerevisiae powder and 9 parts of penicillium oxalate powder. The bacteria content of the six bacteria powder is respectively as follows: the bacteria content of the Aspergillus glaucus powder is not less than 3.5 × 109The bacterium content of cfu/g and the powder of the polyporus pinus is more than or equal to 2.0 multiplied by 109cfu/g, the bacterial content of verticillium chlamydosporium powder is more than or equal to 1.0 multiplied by 109The bacterial content of cfu/g and the bacterial powder of the lactobacillus delbrueckii is more than or equal to 2.0 multiplied by 1011cfu/g, the bacteria content of the saccharomyces cerevisiae powder is more than or equal to 4.5 multiplied by 109cfu/g and the bacterial content of the penicillium oxalicum is more than or equal to 1.5 multiplied by 109cfu/g。
The solid compound microbial foliar fertilizer is prepared by the following steps.
Step 1, preparing a composite microbial inoculum, and uniformly mixing aspergillus glaucus powder, stenotrophospora rosea powder, verticillium chlamydosporium powder, lactobacillus delbrueckii powder, saccharomyces cerevisiae powder and penicillium oxalicum powder to obtain the composite microbial inoculum.
And 2, mixing the raw material components, adding the compound microbial inoculum, brown sugar, urea, monopotassium phosphate and soluble starch together, stirring and uniformly mixing to obtain the solid compound microbial foliar fertilizer 2.
The application method of the solid compound microbial foliar fertilizer 2 comprises the following steps: diluting the solid compound microorganism foliar fertilizer 2 by 50 times with clear water each time, and then spraying the solid compound microorganism foliar fertilizer on leaves of crops growing in saline-alkali soil, or diluting the solid compound microorganism foliar fertilizer 2 by 5 times with clear water each time in a strong dew period, and then spraying the solid compound microorganism foliar fertilizer on the leaves of the crops. Each application of the solid compound microorganism foliar fertilizer 2The amount is 20kg/hm2。
EXAMPLE III
The raw materials of the solid compound microbial foliar fertilizer comprise, by weight, 13 parts of a compound microbial inoculum, 10 parts of brown sugar, 17 parts of urea, 2.5 parts of monopotassium phosphate and 76 parts of soluble starch. The composite microbial agent is prepared by mixing 20 parts of aspergillus glaucus powder, 14 parts of pink polyporus piniperus powder, 11 parts of verticillium chlamydosporium powder, 22 parts of lactobacillus delbrueckii powder, 14 parts of saccharomyces cerevisiae powder and 15 parts of penicillium oxalate powder. The bacteria content of the six bacteria powder is respectively as follows: the bacteria content of the Aspergillus glaucus powder is not less than 3.5 × 109The bacterium content of cfu/g and the powder of the polyporus pinus is more than or equal to 2.0 multiplied by 109cfu/g, the bacterial content of verticillium chlamydosporium powder is more than or equal to 1.0 multiplied by 109The bacterial content of cfu/g and the bacterial powder of the lactobacillus delbrueckii is more than or equal to 2.0 multiplied by 1011cfu/g, the bacteria content of the saccharomyces cerevisiae powder is more than or equal to 4.5 multiplied by 109cfu/g and the bacterial content of the penicillium oxalicum is more than or equal to 1.5 multiplied by 109cfu/g。
The solid compound microbial foliar fertilizer is prepared by the following steps.
Step 1, preparing a composite microbial inoculum, and uniformly mixing aspergillus glaucus powder, stenotrophospora rosea powder, verticillium chlamydosporium powder, lactobacillus delbrueckii powder, saccharomyces cerevisiae powder and penicillium oxalicum powder to obtain the composite microbial inoculum.
And 2, mixing the raw material components, adding the compound microbial inoculum, brown sugar, urea, monopotassium phosphate and soluble starch together, stirring and uniformly mixing to obtain the solid compound microbial foliar fertilizer 3.
The application method of the solid compound microbial foliar fertilizer 3 comprises the following steps: diluting the solid compound microorganism foliar fertilizer 3 by 70 times with clear water each time, and then spraying the solid compound microorganism foliar fertilizer on leaves of crops growing in saline-alkali soil, or diluting the solid compound microorganism foliar fertilizer 3 by 5 times with clear water each time in a strong dew period, and then spraying the solid compound microorganism foliar fertilizer on the leaves of the crops. The application amount of the solid compound microorganism foliar fertilizer 3 is 25kg each time/hm2。
Example four
The raw materials of the solid compound microbial foliar fertilizer comprise, by weight, 15 parts of compound microbial inoculum, 9 parts of brown sugar, 20 parts of urea, 2.3 parts of monopotassium phosphate and 80 parts of soluble starch. The composite microbial agent is prepared by mixing 25 parts of aspergillus glaucus powder, 10 parts of pink polyporus pinicolus powder, 15 parts of verticillium chlamydosporium powder, 25 parts of lactobacillus delbrueckii powder, 10 parts of saccharomyces cerevisiae powder and 5 parts of penicillium oxalate powder. The bacteria content of the six bacteria powder is respectively as follows: the bacteria content of the Aspergillus glaucus powder is not less than 3.5 × 109The bacterium content of cfu/g and the powder of the polyporus pinus is more than or equal to 2.0 multiplied by 109cfu/g, the bacterial content of verticillium chlamydosporium powder is more than or equal to 1.0 multiplied by 109The bacterial content of cfu/g and the bacterial powder of the lactobacillus delbrueckii is more than or equal to 2.0 multiplied by 1011cfu/g, the bacteria content of the saccharomyces cerevisiae powder is more than or equal to 4.5 multiplied by 109cfu/g and the bacterial content of the penicillium oxalicum is more than or equal to 1.5 multiplied by 109cfu/g。
The solid compound microbial foliar fertilizer is prepared by the following steps.
Step 1, preparing a composite microbial inoculum, and uniformly mixing aspergillus glaucus powder, stenotrophospora rosea powder, verticillium chlamydosporium powder, lactobacillus delbrueckii powder, saccharomyces cerevisiae powder and penicillium oxalicum powder to obtain the composite microbial inoculum.
And 2, mixing the raw material components, adding the compound microbial inoculum, brown sugar, urea, monopotassium phosphate and soluble starch together, stirring and uniformly mixing to obtain the solid compound microbial foliar fertilizer 4.
The application method of the solid compound microbial foliar fertilizer 4 comprises the following steps: the solid compound microorganism foliar fertilizer 4 is diluted by 80 times with clear water each time and then sprayed on leaves of crops growing in saline-alkali soil, or the solid compound microorganism foliar fertilizer 4 is diluted by 5 times with clear water each time and then sprayed on the leaves of the crops in the period of strong dew. The application amount of the solid compound microorganism foliar fertilizer 4 is 30kg/hm2。
In order to help better understand the technical scheme of the invention, a test example of crop planting is provided below for illustrating the application effect of the invention.
The first test example: effect of solid compound microbial foliage fertilizer on saline-alkali soil improvement and influence on rice growth
The same saline-alkali field block is selected, the basic physicochemical property of field soil is pH value 8.45, the total salt content of the soil of a plough layer is 4.86g/kg, the alkalization degree is 22.2%, the organic matter content is 13.12g/kg, the total nitrogen content is 1.07g/kg, the quick-acting phosphorus content is 21.74mg/kg, the quick-acting potassium content is 187mg/kg, and the alkaline hydrolysis nitrogen content is 32.58 mg/kg. 5 groups of experimental designs, including 4 experimental groups and 1 control group, each group of experimental designs 3 experimental cells, each area of 30m2All test cells are randomly distributed.
The test group is applied with fertilizer and the solid compound microorganism foliar fertilizer prepared by the invention. The specific fertilization mode is that urea, calcium superphosphate and potassium sulfate are used as base fertilizers to be applied to soil, and the fertilization amounts of the three fertilizers are 162kg/hm of urea respectively287kg/hm of calcium superphosphate2And 87kg/hm potassium sulfate2. Applying urea once at seedling stage, green turning stage and tillering stage of rice, wherein the urea applying amount is 25kg/hm2And green turning period of 24kg/hm2And tillering stage of 24kg/hm2. And respectively spraying the solid compound microbial foliar fertilizer for 1 time in the seedling stage and the seedling turning stage of the rice, diluting the solid compound microbial foliar fertilizer with clear water each time, and then spraying the diluted solid compound microbial foliar fertilizer on crop leaves. In 4 test groups, the dilution multiple of the solid compound microbial foliar fertilizer 1 is 60 times, and the application amount of each time is 15L/hm2(ii) a The dilution multiple of the solid compound microorganism foliar fertilizer 2 is 50 times, and the application amount is 20L/hm each time2(ii) a The dilution multiple of the solid compound microorganism foliar fertilizer 3 is 70 times, and the application amount of each time is 25L/hm2(ii) a The dilution multiple of the solid compound microorganism foliar fertilizer 4 is 80 times, and the application amount is 30L/hm each time2. The control group uses the same amount of clear water to replace the solid compound microorganism foliar fertilizer, and the application mode of the fertilizer is the same as that of the test group.
Selecting SongliaoNo. 6 is a test variety, 60kg/hm in mid-4 th month2Sowing the seeds at the sowing rate, performing the same conventional management on each district, and harvesting in the last 9 th of month. After harvesting the rice, the yield of each cell is counted, and the average cell yield of each group is calculated. And simultaneously, taking a soil sample to measure the pH, the total salt content and the alkalization degree of the soil in each cell, and calculating the average pH, the average total salt content and the average alkalization degree of each group of soil. The results are shown in Table 1.
TABLE 1
As can be seen from the data in Table 1, the pH, the total salt content and the alkalization degree of the 4 groups of rice planting soil applied with the solid compound microbial foliar fertilizer are all obviously lower than those of the control, and the rice yield of the plot is obviously higher than that of the control. Therefore, the prepared solid compound microbial foliar fertilizer 1-the solid compound microbial foliar fertilizer 4 can obviously improve the saline-alkali soil, reduce the pH value and the salt content of the soil, promote the growth of rice and improve the yield of the rice.
Test example two: effect of solid compound microorganism foliar fertilizer on saline-alkali soil improvement and influence on growth of sweet sorghum
The same saline-alkali field is selected, the basic physicochemical property of field soil is that the pH value is 8.25, the total salt content of the soil of a plough layer is 3.34g/kg, the alkalization degree is 19.6%, the organic matter content is 18.16g/kg, the total nitrogen content is 1.02g/kg, the quick-acting phosphorus content is 8.60mg/kg, the quick-acting potassium content is 148mg/kg, and the alkaline hydrolysis nitrogen content is 58.43 mg/kg. The experimental design 5 groups comprise 4 experimental groups and 1 control group, each group of experimental designs comprises 3 experimental cells, and the area of each experimental cell is 20m2All test cells are randomly distributed.
The test group is applied with urea, diamine phosphate and potassium sulfate as base fertilizers, and the fertilizing amount of the three fertilizers is 525kg/hm of urea2520kg/hm diammonium phosphate2And 496kg/hm of potassium sulfate2. Respectively applying solid compound microbial foliar fertilizer once in the seedling stage, the joint-pulling and booting stage and the grain filling stage of the sweet sorghum, and applying the solid compound microbial foliar fertilizer once in the morning of vigorous dewThe compound microbial foliar fertilizer is diluted by 5 times with clear water and sprayed on the leaves of the sweet sorghum. In 4 test groups, the application amount of the solid compound microbial foliar fertilizer 1 is 15L/hm2The application amount of the solid compound microorganism foliar fertilizer 2 is 20L/hm2The application amount of the solid compound microorganism foliar fertilizer 3 is 25L/hm2The application amount of the solid compound microorganism foliar fertilizer 4 is 30L/hm2. The control group uses the same amount of clear water to replace the solid compound microorganism foliar fertilizer, and the application mode of the fertilizer is the same as that of the test group.
The strong soldiers are selected as test varieties, and the seeds are sowed in the last ten days of 4 months, wherein the row spacing is 20cm, and the line spacing is 50 cm. The same general management is adopted for each cell, and the cells are harvested in the last 9 months. After the sweet sorghum is harvested, the yield of each cell is counted, and the average cell yield of each group is calculated. And simultaneously, taking a soil sample to measure the pH, the total salt content and the alkalization degree of the soil in each cell, and calculating the average pH, the average total salt content and the average alkalization degree of each group of soil. The results are shown in Table 3.
TABLE 3
As can be seen from the data in Table 3, the pH, the total salt content and the alkalization degree of the 4 groups of sweet sorghum planting soil applied with the solid compound microbial foliar fertilizer are all obviously lower than those of the control, and the yield of the sweet sorghum in a cell is obviously higher than that of the control. Therefore, the prepared solid compound microbial foliar fertilizer 1-the solid compound microbial foliar fertilizer 4 can obviously improve the saline-alkali soil, reduce the pH and the salt content of the soil, promote the growth of the sweet sorghum and improve the yield of the sweet sorghum.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification, or any other related technical fields directly or indirectly, are included in the scope of the present invention.
Claims (10)
1. A solid compound microorganism foliar fertilizer for improving saline-alkali soil comprises a compound microbial inoculum, brown sugar, urea, monopotassium phosphate and soluble starch.
2. The solid compound microbial foliar fertilizer according to claim 1, characterized in that: the solid compound microbial foliar fertilizer comprises, by weight, 5-15 parts of the compound microbial inoculum, 5-10 parts of brown sugar, 10-20 parts of urea, 2.0-3.0 parts of monopotassium phosphate and 55-80 parts of soluble starch.
3. The solid compound microbial foliar fertilizer according to claim 2, characterized in that: the solid compound microbial foliar fertilizer comprises, by weight, 5 parts of the compound microbial inoculum, 7 parts of brown sugar, 10 parts of urea, 2.2 parts of monopotassium phosphate and 55 parts of soluble starch.
4. The solid compound microbial foliar fertilizer according to claim 2, characterized in that: the solid compound microbial foliar fertilizer comprises 9 parts of compound microbial inoculum, 5 parts of brown sugar, 14 parts of urea, 2.0 parts of monopotassium phosphate and 66 parts of soluble starch by weight.
5. The solid compound microbial foliar fertilizer according to claim 2, characterized in that: the solid compound microbial foliar fertilizer comprises 13 parts of compound microbial inoculum, 10 parts of brown sugar, 17 parts of urea, 2.5 parts of monopotassium phosphate and 76 parts of soluble starch by weight.
6. The solid compound microbial foliar fertilizer according to claim 2, characterized in that: the solid compound microbial foliar fertilizer comprises 15 parts of compound microbial inoculum, 9 parts of brown sugar, 20 parts of urea, 2.3 parts of monopotassium phosphate and 80 parts of soluble starch by weight.
7. The solid-state composite microbial foliar fertilizer according to any one of claims 1 to 6, wherein: the complex microbial inoculum comprises aspergillus glaucous, stenotrophospora rosea, verticillium chlamydosporium, lactobacillus delbrueckii, saccharomyces cerevisiae and penicillium oxalicum.
8. The solid compound microbial foliar fertilizer according to claim 7, wherein: the bacteria content of the Aspergillus glaucus is more than or equal to 3.5 multiplied by 109cfu/g, the bacterium content of the polyporus pinus is more than or equal to 2.0 multiplied by 109cfu/g, the bacterial content of the verticillium chlamydosporium is more than or equal to 1.0 multiplied by 109cfu/g, the bacterium content of the lactobacillus delbrueckii is more than or equal to 2.0 multiplied by 1011cfu/g, the bacteria content of the saccharomyces cerevisiae is more than or equal to 4.5 multiplied by 109cfu/g, the bacterial content of the penicillium oxalicum is more than or equal to 1.5 multiplied by 109cfu/g。
9. The use of the solid-state compound microbial foliar fertilizer of any one of claims 1 to 9, characterized in that: and diluting the solid compound microbial foliar fertilizer by more than 50 times with clear water every time the solid compound microbial foliar fertilizer is applied, and then spraying the solid compound microbial foliar fertilizer on leaves of crops growing in saline-alkali soil, or diluting the solid compound microbial foliar fertilizer by 5 times with clear water in a strong dew period, and then spraying the solid compound microbial foliar fertilizer on the leaves of the crops.
10. Use according to claim 9, characterized in that: the application amount of the solid compound microbial foliar fertilizer is 15-30L/hm once2。
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| CN (1) | CN112573970A (en) |
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Application publication date: 20210330 |