CN111925248A - Special soda saline-alkali soil nutrition improver for hemp and preparation method thereof - Google Patents
Special soda saline-alkali soil nutrition improver for hemp and preparation method thereof Download PDFInfo
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- CN111925248A CN111925248A CN202010797255.0A CN202010797255A CN111925248A CN 111925248 A CN111925248 A CN 111925248A CN 202010797255 A CN202010797255 A CN 202010797255A CN 111925248 A CN111925248 A CN 111925248A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
- C05B1/02—Superphosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
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Abstract
A soda saline-alkali soil nutrition improver special for hemp and a preparation method thereof belong to the technical field of hemp cultivation. The invention aims to solve the problem of saline-alkali soil remediation, and the nutrition modifying agent comprises a component A and a component B, wherein the component A accounts for 50-90 vol.%, the component B accounts for 10-50 vol.%, the component A is corn steep liquor, and the component B is a mixed solution of citric acid, boric acid, amino acid, calcium superphosphate and potassium sulfate; the method comprises the following steps: dissolving and uniformly mixing citric acid, boric acid, amino acid, calcium superphosphate and potassium sulfate according to the weighed amount; a and B are mixed at room temperature according to the weight ratio of 1-9: 1, mixing and stirring uniformly; fermenting for 2-14 days at 25-35 ℃; before application, the modifier and water are mixed according to the proportion of 1-4: 5, mixing uniformly. The invention effectively combines the nutrition modifier and hemp planting, achieves the effect of twice with half the effort on modifying the soda saline-alkali soil, and improves the hemp fiber yield.
Description
Technical Field
The invention belongs to the technical field of hemp cultivation, and particularly relates to a soda saline-alkali soil nutrition improver special for hemp and a preparation method thereof.
Background
China hemp (Cannabis sativa L) is a species with THC (tetrahydrocannabinol) content < 0.3% and no drug utilization value. China hemp is simple and convenient to plant and does not compete with grains and cotton, so the China hemp industry technical system transfers hemp production to non-cultivated land (saline-alkali land, hilly land and winter fallow land), and China hemp is used as a crop for improving the saline-alkali land, so that the treatment not only has economic value, but also has ecological restoration value.
The salinization of soil has become a global environmental problem, and according to incomplete statistics, the salinization soil resources are distributed in more than 100 countries of the world, and the total area reaches 10 hundred million hm2The land occupation of the soda saline-alkali soil is 393.7 ten thousand hectares, which is an important grain production area in China as the northeast Songnen plain, and the land occupation of the soda saline-alkali soil is increased by 1.4% every year, so that the land occupation is one of three concentrated distribution areas of the soda saline-alkali soil in the world. The salinization degree of the soil of the tender plain is high, the alkalinity is heavy, the volume weight is large, the permeability is extremely poor, the fertilizer and water retention capacity is quite low, the soda saline-alkali soil of the tender plain is difficult to treat, the evaporation capacity of the area is large, and salt accumulation and salt back-off are very easy to occur.
A large number of researches show that through the improvement of acidic substances, the alkalization degree and the pH value of saline-alkali soil can be effectively reduced, the colloid aggregation and the micro-aggregate formation of soil are enhanced, the soil structure is improved, and the water retention capacity of the soil is improved; meanwhile, the metabolic activity of soil microorganisms is improved, the growth of crops is facilitated, and the yield of the crops is effectively improved. The physical and agricultural measures mainly include that the physical structure of soil is changed through some agricultural measures (such as plowing, ploughing, pressing, intertillage and the like) or soil water and salt movement is regulated and controlled through ground surface covering, so that a good soil surface state and plough layer structure are created, soil desalination is promoted, soil moisture evaporation is effectively reduced, soil salt return is inhibited, the soil salinization degree is reduced, the water, fertilizer, gas and heat conditions in soil are adjusted, and a good soil environment condition is created for high yield of crops. The improvement measures have the problems of high cost, heavy engineering quantity, low effectiveness, easy secondary pollution, large loss of nutrient elements in soil and the like, so that the improvement of the saline-alkali soil in the tender plain needs to select comprehensive improvement measures with pertinence for improvement.
Disclosure of Invention
The invention aims to solve the problem of saline-alkali soil remediation, and provides a soda saline-alkali soil nutrient modifier special for hemp and a preparation method thereof. The modifier not only improves the physicochemical property of the soda saline-alkali soil, reduces the pH value of the soda saline-alkali soil, improves the nutrient and water conditions of the soil, but also provides nutrients for the growth and development of the hemp, has simple raw material sources, effectively utilizes the waste liquid generated by industry, and is a comprehensive improvement technology integrating economic, environmental and ecological effects.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the nutrient modifier comprises a component A and a component B, wherein the component A accounts for 50-90 vol.%, the component B accounts for 10-50 vol.%, the component A is corn steep liquor, and the component B is a mixed solution containing 10-50 g of citric acid, 50-150 g of boric acid, 50-150 g of amino acid, 50-200 g of calcium superphosphate and 50-150 g of potassium sulfate per liter.
The preparation method of the soda saline-alkali soil nutrition improver special for hemp comprises the following steps:
the method comprises the following steps: preparation of component B: dissolving and uniformly mixing citric acid, boric acid, amino acid, calcium superphosphate and potassium sulfate according to the weighed amount;
step two: a and B are mixed at room temperature according to the weight ratio of 1-9: 1, mixing and stirring uniformly;
step three: fermenting at 25-35 deg.C for 2-14 days, and measuring pH to 2.6-4.5;
step four: before application, the modifier and water are mixed according to the proportion of 1-4: 5, mixing uniformly.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention utilizes the byproduct corn steep liquor of corn starch production as the component of the soda saline-alkali soil conditioner, not only improves the nutrient condition and structure of soil and reduces the environmental pollution, but also can fully utilize waste liquid, and has certain economic value. In the prior process of producing corn starch, most of generated slurry is thrown away as waste, which pollutes the environment and wastes resources.
(2) The soil conditioner of the invention passes through H+Neutralize OH in soil-Thereby reducing the pH value of the soil, promoting the dissolution of alkali metal carbonate in the soil and activating solidified Ca in the soil2+、Mg2+Plasma of Ca2+、Mg2+Plasma with Na+The ions are subjected to displacement reaction, so that the alkalization degree of the soil is effectively reduced, the soil structure and environment are improved, the microbial activity and the soil fertilizer and water retention capacity are improved, and the growth of crops and the yield are improved.
(3) The nutrient modifier contains a large amount of elements such as carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium and the like, secondary elements such as calcium, sulfur and the like, and trace elements such as boron, zinc and the like which are required by crops, and improves nutrients for the growth and development of the crops.
(4) After China hemp is planted, the pH value, the salt content, the TDS, the conductivity and the like of the soda saline-alkali soil are reduced, the physicochemical and nutritional conditions of the soil are effectively improved, and the treatment not only has economic value, but also has ecological restoration value.
(5) The invention effectively combines the nutrition modifier and hemp planting, achieves the effect of twice with half the effort on modifying the soda saline-alkali soil, and improves the hemp fiber yield.
(6) The nutrient modifier is simple and convenient to apply, can be applied or drop-irrigated once along with the spring sowing of the hemp, and can effectively reduce the influence of saline-alkali stress on the emergence of the hemp and improve the emergence rate, and the dosage of the moderate soda saline-alkali soil per mu is 60-720 liters.
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FIG. 1 is a graph showing the comparison of the growth and development of hemp after the application of the modifier.
Detailed Description
The technical solutions of the present invention are further described below with reference to the drawings and the embodiments, but the present invention is not limited thereto, and modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
The first embodiment is as follows: the embodiment describes a nutrition modifying agent for soda saline-alkali soil special for hemp, which comprises a component A and a component B, wherein the component A accounts for 50-90 vol.%, the component B accounts for 10-50 vol.%, the component A is corn steep liquor, and the component B is a mixed solution containing 10-50 g of citric acid, 50-150 g of boric acid, 50-150 g of amino acid, 50-200 g of calcium superphosphate and 50-150 g of potassium sulfate per liter.
The second embodiment is as follows: in the concrete embodiment, the soda saline-alkali soil nutrient modifying agent special for hemp is a byproduct generated in the process of producing corn starch.
The third concrete implementation mode: the soda saline-alkali soil nutrition improver special for hemp comprises the following components: fufeng corn steep liquor: 1.0-9.0g/100g of total sugar, 1.0-5.2g/100g of reducing sugar, 1.0-11.0g/100g of ash, 0.5-3.0g/100g of amino nitrogen, 10.0-30.0g/100g of total nitrogen, 1.0-10.0g/100g of lactic acid, 0.5-3.0g/100mL of total acid, 0.2 mu g/kg of aflatoxin B1, 1.67 mu g/kg of ochratoxin A, 10.0-80.0 mu g/kg of zearalenone, 0.03mg/kg of deoxynivalenol, 20.0-80.0g/100g of pulp moisture content, 20.0-80.0g/100g of dreg moisture content, and 0.1-0.8g/100g of total acid in slag rate; wherein, the total sugar, the reducing sugar, the ash content, the amino nitrogen, the total nitrogen, the lactic acid and the total acid are all calculated on a wet basis; the slag yield total acid is on a dry basis. The pH of the corn steep liquor does not change greatly with the rise of the temperature, and the pH is 4.12 at 50 ℃; pH 4.39 at 20 ℃; pH 4.50 at 4 ℃.
The fourth concrete implementation mode: the third concrete embodiment provides a nutrient modifier for soda saline-alkali soil special for hemp, which comprises the following components of a component A: fufeng corn steep liquor: 8.845g/100g of total sugar, 2.361g/100g of reducing sugar, 9.52g/100g of ash, 1.444g/100g of amino nitrogen, 19.478g/100g of total nitrogen, 6.103g/100g of lactic acid, 1.277g/100mL of total acid, 1<0.2 mu g/kg of aflatoxin B, 1.67 mu g/kg of ochratoxin A, 63.51 mu g/kg of zearalenone, 0.03mg/kg of deoxynivalenol, 60.4g/100g of pulp moisture content, 71.43g/100g of dreg moisture content and 0.51g/100g of dreg-discharging total acid; wherein, the total sugar, the reducing sugar, the ash content, the amino nitrogen, the total nitrogen, the lactic acid and the total acid are all calculated on a wet basis; the slag yield total acid is on a dry basis.
The fifth concrete implementation mode: the preparation method of the nutrient modifier for the soda saline-alkali soil specially used for China hemp according to any one of the first to fourth embodiments comprises the following steps:
the method comprises the following steps: preparation of component B: dissolving and uniformly mixing citric acid, boric acid, amino acid, calcium superphosphate and potassium sulfate according to the weighed amount;
step two: a and B are mixed at room temperature according to the weight ratio of 1-9: 1, mixing and stirring uniformly;
step three: fermenting at 25-35 deg.C for 2-14 days, and determining pH value to 2.6-4.5 to obtain the best improvement and nutrition effects;
step four: before application, the modifier and water are mixed according to the proportion of 1-4: 5, mixing uniformly.
Example 1:
a preparation method of a soda saline-alkali soil nutrition improver special for hemp comprises the following steps:
the nutrition modifying agent comprises a component A and a component B, wherein the component A comprises the following components: fufeng corn steep liquor: 8.845g/100g of total sugar, 2.361g/100g of reducing sugar, 9.52g/100g of ash, 1.444g/100g of amino nitrogen, 19.478g/100g of total nitrogen, 6.103g/100g of lactic acid, 1.277g/100mL of total acid, 1<0.2 mu g/kg of aflatoxin B, 1.67 mu g/kg of ochratoxin A, 63.51 mu g/kg of zearalenone, 0.03mg/kg of deoxynivalenol, 60.4g/100g of pulp moisture content, 71.43g/100g of dreg moisture content and 0.51g/100g of dreg-discharging total acid; wherein, the total sugar, the reducing sugar, the ash content, the amino nitrogen, the total nitrogen, the lactic acid and the total acid are all calculated on a wet basis; slag rate total acid on a dry basis; the component B is a mixed solution containing 30 g of citric acid, 100g of boric acid, 100g of amino acid, 100g of calcium superphosphate and 100g of potassium sulfate per liter.
The method comprises the following steps:
the method comprises the following steps: preparation of component B: dissolving and uniformly mixing citric acid, boric acid, amino acid, calcium superphosphate and potassium sulfate according to the weighed amount;
step two: a and B are mixed at room temperature according to the following ratio of 2: 1, mixing and stirring uniformly;
step three: fermenting at 30 deg.C for 8 days.
Potting test moderate soda saline (pH 8.9) was used as the test soil and the conditioner was diluted with water at 7 levels (0mL/L, 30mL/L, 60mL/L, 120mL/L, 240mL/L, 480mL/L, 960mL/L) and repeated 3 times in random block arrangements. The hemp seeds are evenly placed in the pot, the soil is manually covered for about 1 cm, and the planting density is 450 grains per square meter. The modifier is applied once along with the seedling emergence water. According to the growth and development conditions of the hemp and the physicochemical conditions of the soil, the effect of treating 240mL/L on improving the moderate soda saline-alkali soil is the best, and the growth vigor and the fiber yield of the hemp are the best.
The test results only provide the physicochemical properties of the treated (240mL/L) soil and the growth and development conditions of China hemp: as can be seen from the table 1, after the hemp is planted, the pH value, the total salt content, the TDS and the conductivity of the soil are respectively reduced by 8.65%, 25.58%, 29.41% and 42.65%; after China hemp is planted and the soil conditioner is applied, the pH value, the total salt content, the TDS and the conductivity of the soil are respectively reduced by 11.80%, 44.19%, 48.69% and 58.89%. Therefore, after China hemp is planted and the soil conditioner is applied, the physical and chemical properties of the soil are obviously improved. From the growth and development of hemp, the plant height, the leaf area, the SPAD value and the fiber yield of hemp are respectively increased by 19.96%, 45.28%, 29.91% and 33.33% after the modifier is applied (Table 2).
TABLE 1 physicochemical conditions of the soil
| Treatment of | pH | Salt content (%) | TDS (mg/L) | Conductivity (micro-west/cm) |
| Original soil | 8.9 | 0.43 | 612 | 1367 |
| After planting hemp | 8.13 | 0.32 | 432 | 784 |
| Hemp and modifier | 7.85 | 0.24 | 314 | 562 |
TABLE 2 growth conditions of hemp
| Treatment of | Plant height (cm) | Leaf area (cm)2) | SPAD | Single plant fiber yield (g) |
| Original soil | 44.5 | 245.6 | 32.1 | 0.76 |
| Modifying agent | 55.6 | 448.79 | 45.8 | 1.14 |
As shown in figure 1, the growth of hemp is obviously promoted after the modifying agent is applied, the leaves are hypertrophied, and the leaf area and the chlorophyll content are increased.
Claims (5)
1. A soda saline-alkali soil nutrition improver special for hemp is characterized in that: the nutritional modifier comprises a component A and a component B, wherein the component A accounts for 50-90 vol.%, the component B accounts for 10-50 vol.%, the component A is corn steep liquor, and the component B is a mixed solution containing 10-50 g of citric acid, 50-150 g of boric acid, 50-150 g of amino acid, 50-200 g of calcium superphosphate and 50-150 g of potassium sulfate per liter.
2. The soda saline-alkali soil nutrition improver special for hemp according to claim 1, which is characterized in that: the corn steep liquor is a byproduct produced in the process of producing corn starch.
3. The soda saline-alkali soil nutrition improver special for hemp according to claim 1 or 2, characterized in that: the component A comprises the following components: fufeng corn steep liquor: 1.0-9.0g/100g of total sugar, 1.0-5.2g/100g of reducing sugar, 1.0-11.0g/100g of ash, 0.5-3.0g/100g of amino nitrogen, 10.0-30.0g/100g of total nitrogen, 1.0-10.0g/100g of lactic acid, 0.5-3.0g/100mL of total acid, 0.2 mu g/kg of aflatoxin B1, 1.67 mu g/kg of ochratoxin A, 10.0-80.0 mu g/kg of zearalenone, 0.03mg/kg of deoxynivalenol, 20.0-80.0g/100g of pulp moisture content, 20.0-80.0g/100g of dreg moisture content, and 0.1-0.8g/100g of total acid in slag rate; wherein, the total sugar, the reducing sugar, the ash content, the amino nitrogen, the total nitrogen, the lactic acid and the total acid are all calculated on a wet basis; the slag yield total acid is on a dry basis.
4. The soda saline-alkali soil nutrition improver special for hemp according to claim 3, characterized in that: the component A comprises the following components: fufeng corn steep liquor: 8.845g/100g of total sugar, 2.361g/100g of reducing sugar, 9.52g/100g of ash, 1.444g/100g of amino nitrogen, 19.478g/100g of total nitrogen, 6.103g/100g of lactic acid, 1.277g/100mL of total acid, 1<0.2 mu g/kg of aflatoxin B, 1.67 mu g/kg of ochratoxin A, 63.51 mu g/kg of zearalenone, 0.03mg/kg of deoxynivalenol, 60.4g/100g of pulp moisture content, 71.43g/100g of dreg moisture content and 0.51g/100g of dreg-discharging total acid; wherein, the total sugar, the reducing sugar, the ash content, the amino nitrogen, the total nitrogen, the lactic acid and the total acid are all calculated on a wet basis; the slag yield total acid is on a dry basis.
5. The preparation method of the soda saline-alkali soil nutrition improver special for hemp according to any one of claims 1 to 4, characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: preparation of component B: dissolving and uniformly mixing citric acid, boric acid, amino acid, calcium superphosphate and potassium sulfate according to the weighed amount;
step two: a and B are mixed at room temperature according to the weight ratio of 1-9: 1, mixing and stirring uniformly;
step three: fermenting at 25-35 deg.C for 2-14 days, and measuring pH to 2.6-4.5;
step four: before application, the modifier and water are mixed according to the proportion of 1-4: 5, mixing uniformly.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105623672A (en) * | 2016-02-23 | 2016-06-01 | 新疆泰谷生物肥料有限公司 | Soda saline-alkali land soil conditioner and preparation method and application thereof |
| WO2017088809A1 (en) * | 2015-11-26 | 2017-06-01 | 北京清迈华清控股(集团)有限公司 | Method for producing new saline-alkali soil repair fertilizer by utilizing high silicon cast iron tailings, and products of method |
| CN110387241A (en) * | 2019-06-21 | 2019-10-29 | 深圳袁大高科农业发展有限公司 | A kind of salt affected soil improvement restorative procedure and its application |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017088809A1 (en) * | 2015-11-26 | 2017-06-01 | 北京清迈华清控股(集团)有限公司 | Method for producing new saline-alkali soil repair fertilizer by utilizing high silicon cast iron tailings, and products of method |
| CN105623672A (en) * | 2016-02-23 | 2016-06-01 | 新疆泰谷生物肥料有限公司 | Soda saline-alkali land soil conditioner and preparation method and application thereof |
| CN110387241A (en) * | 2019-06-21 | 2019-10-29 | 深圳袁大高科农业发展有限公司 | A kind of salt affected soil improvement restorative procedure and its application |
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Application publication date: 20201113 |