CN113079731A - Coastal saline soil improvement method - Google Patents
Coastal saline soil improvement method Download PDFInfo
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- CN113079731A CN113079731A CN202110323062.6A CN202110323062A CN113079731A CN 113079731 A CN113079731 A CN 113079731A CN 202110323062 A CN202110323062 A CN 202110323062A CN 113079731 A CN113079731 A CN 113079731A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/40—Fabaceae, e.g. beans or peas
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
- C05F11/08—Organic fertilisers containing added bacterial cultures, mycelia or the like
-
- 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
- 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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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
Abstract
The invention discloses a method for improving coastal saline soil, which comprises the following steps: (1) soil preparation, namely after soil is backfilled and leveled, uniformly applying 10-100kg of mineral conditioning modifier and 1-5kg of soil remediation agent to the soil per mu, and then raking the soil; the mineral conditioning modifier consists of organic matters and mineral powder in a weight ratio of 1-5:1, and the soil repairing agent at least comprises 30g/L of organic complex, 0.5g/L of metalloprotease, 2.0 hundred million/g of effective viable count, 1.5g/L of glutamic acid and 0.5g/L of biological coenzyme; (2) after 3-8 days, uniformly applying 30-100kg of soil biological conditioning fertilizer, 1-5kg of soil conditioner and 1-5kg of functional organic nutrient solution to soil per mu, and harrowing the soil; the soil biological conditioning fertilizer comprises organic matters and effective viable bacteria, and the functional organic nutrient solution comprises major elements and trace elements; (3) planting green manure after 5-15 days, and ploughing after 20-30 days. The coastal saline soil improvement method provided by the invention can obviously improve the physicochemical property and the biological activity of soil, improve the crop yield and has a better application prospect.
Description
Technical Field
The invention relates to the technical field of soil improvement, in particular to a coastal saline soil improvement method.
Background
The soil improvement is a process of utilizing modern large-scale machinery to reform the existing land topography and improve the existing soil conditions, and aims to form a good soil plough layer structure and surface state, coordinate factors such as water, fertilizer, gas and heat in the soil and provide proper basic conditions for seeding, crop growth and field management.
The coastal saline-alkali soil is mainly distributed on offshore beaches and river delta, is coastal saline marsh soil, has acidic soil, a pH value of 4.4-5.6, high organic matter and nitrogen content in soil plough layers, medium and low total phosphorus and potassium content, 0.45-1.20 percent of soil salt content, and is mainly composed of sodium chloride, viscous and heavy soil and belongs to light clay to medium clay. Therefore, the soil of the land parcel has the characteristics of dissolution, salt swelling and corrosiveness, which results in poor structural stability of soil aggregates and low biological diversity, particularly a microflora.
Ecological restoration of sea salt and alkali not only improves the ecological environment of coastal areas, enriches local greening landscape patterns, provides a new habitat for biological diversity, but also can better solve the problems in environmental development and economic development of the coastal areas, and provides a wide space for realizing virtuous circle and sustainable development of society, economy and ecology. Therefore, it is urgently needed to provide a new improvement method for coastal saline soil.
Disclosure of Invention
Aiming at the technical problems, the invention provides a method for improving coastal saline soil, which mainly takes the main measures of cultivating good soil aggregate structure, optimizing soil microbial structure, planting green manure crops and improving soil texture, improves soil physicochemical property, improves soil fertility and forms a healthy soil environment beneficial to crop production.
A coastal saline soil improvement method comprises the following steps:
(1) soil preparation, namely after soil is backfilled and leveled, uniformly applying 10-100kg of mineral conditioning modifier and 1-5kg of soil remediation agent to the soil per mu, and then raking the soil;
the mineral conditioning modifier consists of organic matters and mineral powder in a weight ratio of 1-5:1, wherein the mineral powder comprises the following components in parts by weight: 20-35 parts of volcanic ash, 5-15 parts of melilite, 20-30 parts of medical stone, 8-12 parts of zeolite, 5-15 parts of diatomite, 5-10 parts of stone needle, 3-7 parts of calcite and 1-5 parts of basalt;
the soil repairing agent at least comprises 30g/L of organic complex, 0.5g/L of metalloprotease, 2.0 hundred million/g of effective viable count, 1.5g/L of glutamic acid and 0.5g/L of biological coenzyme;
(2) after 3-8 days, uniformly applying 30-100kg of soil biological conditioning fertilizer, 1-5kg of soil conditioner and 1-5kg of functional organic nutrient solution to soil per mu, and harrowing the soil;
the soil biological conditioning fertilizer comprises organic matters and effective viable bacteria, wherein the organic matters account for more than 40%, and the number of the effective viable bacteria is not less than 0.2 hundred million/g;
the functional organic nutrient solution contains macroelements and microelements, wherein the macroelements are at least 35g/L, the microelements are at least 0.5g/L, the macroelements comprise nitrogen, phosphorus and potassium, and the microelements comprise iron, zinc, copper, calcium, magnesium and manganese;
(3) planting green manure after 5-15 days, and ploughing after 20-30 days.
Preferably, the mineral powder comprises the following components in parts by weight: 25-30 parts of volcanic ash, 8-12 parts of melilite, 20-25 parts of medical stone, 8-10 parts of zeolite, 10-15 parts of diatomite, 5-8 parts of stone needle, 4-6 parts of montmorillonite and 2-4 parts of basalt.
Preferably, the effective viable bacteria in the soil conditioning fertilizer are bacillus subtilis and paenibacillus mucilaginosus.
Preferably, the pH value of the soil biological conditioning fertilizer is 5.5-8.5.
Preferably, the soil conditioner comprises a solid soil conditioner and a liquid soil conditioner.
Preferably, the soil conditioner is a combination of two or more of inorganic base or acid, organic complex, penetrant, biological coenzyme, metalloprotease and glutamic acid.
Preferably, the functional organic nutrient solution at least comprises 50g/L of free amino acid, 50g/L of water-soluble protein and 20g/L of polysaccharide.
Preferably, the pH of the functional organic nutrient solution is 6.5-7.5.
Preferably, the green manure is a leguminous green manure.
Compared with the prior art, the invention has the beneficial effects that:
(1) after reclamation of coastal salinized land, because the soil structure is destroyed, the effective nutrient nutrients of the soil are easy to lose, the invention can be used for conditioning and improving the physicochemical property and pH value of the salinized soil, reducing the salt content and cultivating the good soil aggregate structure of the plough layer by applying a soil mineral conditioning modifier and a soil repairing agent, and the cultivation of the good soil aggregate structure is a key measure for ensuring the soil quality to form a healthy soil environment beneficial to crop production;
(2) the salinized soil has poor biological diversity, particularly few microbial flora and poor development of soil probiotic groups, the soil microbial structure is optimized by applying a soil biological conditioning fertilizer, a soil conditioner and a functional organic nutrient solution, the soil structure is effectively improved, the air permeability, water retention and fertilizer retention capacity of the soil are improved, and the population and the number of beneficial microbes in the soil are activated and increased, so that soil calcium ions are activated, the activated calcium ions can effectively remove harmful basic ions in the soil, the salt damage is removed, the activated calcium ions can reduce the acidity of the soil and remove the acid damage, and meanwhile, due to the action of the soil beneficial microbes, the utilization rate of trace nutrient elements such as phosphorus, silicon, magnesium and the like in the soil is greatly improved, and the nutrient is obviously improved;
(3) the green manure or leguminous crops are ploughed into soil, so that soil curing is accelerated, recombination and coordination of water, fertilizer, gas and heat in the soil are promoted, soil organic matters are increased and updated, propagation of microorganisms, particularly probiotic groups, is promoted, physicochemical properties and biological activity of the soil are improved, and a high-yield, stable-yield and high-quality foundation is laid for crop production.
Detailed Description
The following further describes a specific embodiment of the present invention with specific examples, which are intended to describe the technical solution in detail, but not to limit the technical solution. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The soil improvement place of the embodiment is a new coastal salinized land built by Guangdong tunnel, and the soil improvement method comprises the following steps:
(1) soil preparation, namely uniformly applying 50kg of mineral conditioning modifier and 2kg of soil remediation agent to soil per mu after soil is backfilled and leveled, and then raking the soil;
(2) after 5 days, uniformly applying 50kg of soil biological conditioning fertilizer, 2kg of solid soil conditioner and 1kg of functional organic nutrient solution to the soil per mu, and then raking the soil;
(3) after 5 days, 50g of radish seeds are sown, and ploughing is carried out after 20 days.
The mineral conditioning modifier consists of 70% of organic matters and 30% of mineral powder, wherein the mineral powder comprises the following components in parts by weight: 30 parts of volcanic ash, 10 parts of melilite, 25 parts of medical stone, 10 parts of zeolite, 10 parts of diatomite, 7 parts of stone needle, 5 parts of calcite and 3 parts of basalt;
the soil repairing agent comprises 30g/L of organic complex, 0.5g/L of metalloprotease, 2.0 hundred million/g of effective viable count, 1.5g/L of glutamic acid and 0.5g/L of biological coenzyme, and the pH value of the soil repairing agent is 6.0;
the soil biological conditioning fertilizer mainly comprises 40 percent of organic matters and effective viable bacteria, wherein the effective viable bacteria comprise bacillus subtilis and bacillus mucilaginosus, the number of the effective viable bacteria is not less than 0.2 hundred million/g, the water content is not more than 30 percent, other heavy metal substances such as lead, chromium, arsenic, mercury and the like do not exceed the specified standard range, and the pH value of the soil biological conditioning fertilizer is 6.0;
the solid soil conditioner comprises 20g/L of multi-element organic complex, 0.5g/L of metalloprotease and 0.5g/L of biological coenzyme.
The functional organic nutrient solution comprises macroelements and microelements, wherein the macroelements (N + P20+ K20) are 35g/L, the microelements (Fe, Zn, Cu, Ca, Mg and Mn) are 0.5g/L, the macroelements comprise nitrogen, phosphorus and potassium, and the functional organic nutrient solution also comprises other nutrient substances of 50g/L water-soluble protein, 5% polyglutamic acid, 20g/L organic complex and 160g/L organic matter.
Example 2
The soil improvement place of the embodiment is a certain coastal salinized land of Guangdong Lianjiang river young crops, and the soil improvement method comprises the following steps:
(1) soil preparation, namely uniformly applying 50kg of mineral conditioning modifier and 3kg of soil remediation agent to soil per mu after soil is backfilled and leveled, and then raking the soil;
(2) after 5 days, uniformly applying 60kg of soil biological conditioning fertilizer, 3kg of liquid soil conditioner and 2kg of functional organic nutrient solution to the soil per mu, and then raking the soil;
(3) after 5 days, 2kg of soybean seeds are sown, and ploughing is carried out after 25 days.
The mineral conditioning modifier consists of 70% of organic matters and 30% of mineral powder, wherein the mineral powder comprises the following components in parts by weight: 30 parts of volcanic ash, 10 parts of melilite, 25 parts of medical stone, 10 parts of zeolite, 10 parts of diatomite, 7 parts of stone needle, 5 parts of calcite and 3 parts of basalt;
the soil repairing agent comprises 30g/L of organic complex, 0.5g/L of metalloprotease, 2.0 hundred million/g of effective viable count, 1.5g/L of glutamic acid and 0.5g/L of biological coenzyme, and the pH value of the soil repairing agent is 6.0;
the soil biological conditioning fertilizer mainly comprises 40 percent of organic matters and effective viable bacteria, wherein the effective viable bacteria comprise bacillus subtilis and bacillus mucilaginosus, the number of the effective viable bacteria is not less than 0.2 hundred million/g, the water content is not more than 30 percent, other heavy metal substances such as lead, chromium, arsenic, mercury and the like do not exceed the specified standard range, and the pH value of the soil biological conditioning fertilizer is 6.0;
the liquid soil conditioner comprises 20g/L of polybasic organic alkali, 0.5g/L of metalloprotease, 2.0 hundred million/g of effective viable count, 0.5g/L of biological coenzyme and 1.5g/L of glutamic acid.
The functional organic nutrient solution comprises macroelements and microelements, wherein the macroelements (N + P20+ K20) are 35g/L, the microelements (Fe, Zn, Cu, Ca, Mg and Mn) are 0.5g/L, the macroelements comprise nitrogen, phosphorus and potassium, and the functional organic nutrient solution also comprises other nutrient substances of 50g/L water-soluble protein, 5% polyglutamic acid, 20g/L organic complex and 160g/L organic matter.
Example 3
The soil improvement place of the embodiment is a coastal salinized land of Chaste, Guangdong, and the soil improvement method comprises the following steps:
(1) soil preparation, namely uniformly applying 50kg of mineral conditioning modifier and 2kg of soil remediation agent to soil per mu after soil is backfilled and leveled, and then raking the soil;
(2) after 5 days, uniformly applying 60kg of soil biological conditioning fertilizer, 2kg of liquid soil conditioner and 2kg of functional organic nutrient solution to the soil per mu, and then raking the soil;
(3) after 5 days, 2kg of soybean seeds are sown, and ploughing is carried out after 25 days.
The mineral conditioning modifier consists of 70% of organic matters and 30% of mineral powder, wherein the mineral powder comprises the following components in parts by weight: 30 parts of volcanic ash, 10 parts of melilite, 25 parts of medical stone, 10 parts of zeolite, 10 parts of diatomite, 7 parts of stone needle, 5 parts of calcite and 3 parts of basalt;
the soil repairing agent comprises 30g/L of organic complex, 0.5g/L of metalloprotease, 2.0 hundred million/g of effective viable count, 1.5g/L of glutamic acid and 0.5g/L of biological coenzyme, and the pH value of the soil repairing agent is 6.0;
the soil biological conditioning fertilizer mainly comprises 40 percent of organic matters and effective viable bacteria, wherein the effective viable bacteria comprise bacillus subtilis and bacillus mucilaginosus, the number of the effective viable bacteria is not less than 0.2 hundred million/g, the water content is not more than 30 percent, other heavy metal substances such as lead, chromium, arsenic, mercury and the like do not exceed the specified standard range, and the pH value of the soil biological conditioning fertilizer is 6.0;
the liquid soil conditioner comprises 20g/L of polybasic organic alkali, 0.5g/L of metalloprotease, 2.0 hundred million/g of effective viable count, 0.5g/L of biological coenzyme and 1.5g/L of glutamic acid.
The functional organic nutrient solution comprises macroelements and microelements, wherein the macroelements (N + P20+ K20) are 35g/L, the microelements (Fe, Zn, Cu, Ca, Mg and Mn) are 0.5g/L, the macroelements comprise nitrogen, phosphorus and potassium, and the functional organic nutrient solution also comprises other nutrient substances of 50g/L water-soluble protein, 5% polyglutamic acid, 20g/L organic complex and 160g/L organic matter.
Example 4
The soil improvement place of the embodiment is a certain coastal salinized land of the Hainan Sanya City, and the soil improvement method comprises the following steps:
(1) soil preparation, namely uniformly applying 50kg of mineral conditioning modifier and 4kg of soil remediation agent to soil per mu after soil is backfilled and leveled, and then raking the soil;
(2) after 5 days, uniformly applying 70kg of soil biological conditioning fertilizer, 3kg of liquid soil conditioner and 7kg of functional organic nutrient solution to the soil per mu, and then raking the soil;
(3) after 5 days, 2kg of soybean seeds are sown, and ploughing is carried out after 25 days.
The mineral conditioning modifier consists of 70% of organic matters and 30% of mineral powder, wherein the mineral powder comprises the following components in parts by weight: 30 parts of volcanic ash, 10 parts of melilite, 25 parts of medical stone, 10 parts of zeolite, 10 parts of diatomite, 7 parts of stone needle, 5 parts of calcite and 3 parts of basalt;
the soil repairing agent comprises 30g/L of organic complex, 0.5g/L of metalloprotease, 2.0 hundred million/g of effective viable count, 1.5g/L of glutamic acid and 0.5g/L of biological coenzyme, and the pH value of the soil repairing agent is 6.0;
the soil biological conditioning fertilizer mainly comprises 40 percent of organic matters and effective viable bacteria, wherein the effective viable bacteria comprise bacillus subtilis and bacillus mucilaginosus, the number of the effective viable bacteria is not less than 0.2 hundred million/g, the water content is not more than 30 percent, other heavy metal substances such as lead, chromium, arsenic, mercury and the like do not exceed the specified standard range, and the pH value of the soil biological conditioning fertilizer is 6.0;
the liquid soil conditioner comprises 20g/L of polybasic organic alkali, 0.5g/L of metalloprotease, 2.0 hundred million/g of effective viable count, 0.5g/L of biological coenzyme and 1.5g/L of glutamic acid.
The functional organic nutrient solution comprises macroelements and microelements, wherein the macroelements (N + P20+ K20) are 35g/L, the microelements (Fe, Zn, Cu, Ca, Mg and Mn) are 0.5g/L, the macroelements comprise nitrogen, phosphorus and potassium, and the functional organic nutrient solution also comprises other nutrient substances of 50g/L water-soluble protein, 5% polyglutamic acid, 20g/L organic complex and 160g/L organic matter.
Rice was planted on the land improved by the method of the present examples 1 to 4.
In order to prove the beneficial effects of the invention, the soil before and after soil improvement is respectively subjected to physical and chemical property detection, and the detection results are shown in table 1.
TABLE 1 physicochemical Properties of the coastal saline soil before and after improvement
The rice plants were planted on the soil of examples 1 to 4 after the improvement, and the planting conditions of the rice plants are shown in Table 2.
TABLE 2 Rice planting situation
| Percentage of fruit set (%) | Increase in amplitude (%) | Mu yield (kg) | Increase in amplitude (%) | |
| Example 1 | 81.7 | 12.7 | 375 | 45.3 |
| Example 2 | 80.7 | 12.6 | 316 | 32.2 |
| Example 3 | 83.5 | 16.9 | 402 | 35.4 |
| Example 4 | 84.3 | 20.1 | 388 | 33.3 |
As can be seen from Table 1, the coastal saline soil improvement method provided by the invention can obviously adjust the pH value of soil, reduce the salt content of the soil and obviously improve the soil environment; as can be seen from Table 2, the yield and the maturing rate of the crops can be remarkably improved by planting the rice on the improved soil.
The soil improvement method provided by the invention can better improve the physicochemical property and the biological activity of soil, lays a high-yield, stable-yield and high-quality foundation for crop production, and has better application prospect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A coastal saline soil improvement method is characterized by comprising the following steps:
(1) soil preparation, namely after soil is backfilled and leveled, uniformly applying 10-100kg of mineral conditioning modifier and 1-5kg of soil remediation agent to the soil per mu, and then raking the soil;
the mineral conditioning modifier consists of organic matters and mineral powder in a weight ratio of 1-5:1, wherein the mineral powder comprises the following components in parts by weight: 20-35 parts of volcanic ash, 5-15 parts of melilite, 20-30 parts of medical stone, 8-12 parts of zeolite, 5-15 parts of diatomite, 5-10 parts of stone needle, 3-7 parts of calcite and 1-5 parts of basalt;
the soil repairing agent at least comprises 30g/L of organic complex, 0.5g/L of metalloprotease, 2.0 hundred million/g of effective viable count, 1.5g/L of glutamic acid and 0.5g/L of biological coenzyme;
(2) after 3-8 days, uniformly applying 30-100kg of soil biological conditioning fertilizer, 1-5kg of soil conditioner and 1-5kg of functional organic nutrient solution to soil per mu, and harrowing the soil;
the soil biological conditioning fertilizer comprises organic matters and effective viable bacteria, wherein the organic matters account for more than 40%, and the number of the effective viable bacteria is not less than 0.2 hundred million/g;
the functional organic nutrient solution contains macroelements and microelements, wherein the macroelements are at least 35g/L, the microelements are at least 0.5g/L, the macroelements comprise nitrogen, phosphorus and potassium, and the microelements comprise iron, zinc, copper, calcium, magnesium and manganese;
(3) planting green manure after 5-15 days, and ploughing after 20-30 days.
2. The coastal saline soil improvement method of claim 1, wherein the mineral powder comprises the following components in percentage by weight: 25-30 parts of volcanic ash, 8-12 parts of melilite, 20-25 parts of medical stone, 8-10 parts of zeolite, 10-15 parts of diatomite, 5-8 parts of stone needle, 4-6 parts of montmorillonite and 2-4 parts of basalt.
3. The method for improving the coastal saline soil according to claim 1, wherein the effective viable bacteria in the soil conditioning fertilizer are bacillus subtilis and paenibacillus mucilaginosus.
4. The method for improving the coastal saline soil according to claim 1, wherein the pH of the soil biological conditioning fertilizer is 5.5-8.5.
5. The method of claim 1, wherein the soil conditioner comprises a solid soil conditioner and a liquid soil conditioner.
6. The method for improving coastal saline soil according to claim 1 or 5, wherein the soil improvement agent is a combination of two or more of inorganic base or acid, organic complex, penetrant, biological coenzyme, metalloprotease, and glutamic acid.
7. The method of claim 1, wherein the functional organic nutrient solution further comprises at least 50g/L free amino acids, 50g/L water-soluble proteins and 20g/L polysaccharides.
8. The method as claimed in claim 1 or 7, wherein the functional organic nutrient solution has a pH of 6.5-7.5.
9. The method of claim 1, wherein the green manure is a legume green manure.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114853552A (en) * | 2022-06-07 | 2022-08-05 | 新疆绿洲大洋生物科技有限公司 | Saline-alkali soil conditioner and preparation method and application thereof |
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