CN115261026A - Saline-alkali soil improver and improving method thereof - Google Patents
Saline-alkali soil improver and improving method thereof Download PDFInfo
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- CN115261026A CN115261026A CN202210746727.9A CN202210746727A CN115261026A CN 115261026 A CN115261026 A CN 115261026A CN 202210746727 A CN202210746727 A CN 202210746727A CN 115261026 A CN115261026 A CN 115261026A
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- saline
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- alkali soil
- alkali
- ploughing
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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
-
- 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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- 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
- C05F11/02—Other organic fertilisers from peat, brown coal, and similar vegetable deposits
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
-
- 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
-
- 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
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
-
- 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
-
- 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
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
-
- 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 belongs to the technical field of ecological restoration application, and particularly relates to a saline-alkali soil improver and an improving method thereof. The composite material comprises three components of A, B and C, wherein the component A is activated carbon modified by nitric acid; the component B is a composite microbial inoculum comprising azotobacter, cellulose degrading bacteria and phosphorus dissolving bacteria; the component C is a compound fertilizer with a core layer of nitrogen-phosphorus-potassium compound fertilizer, a first coating layer of humic acid and a second coating layer of hydroxymethyl cellulose, wherein the weight ratio of the component A to the component B to the component C is 6.5. The invention provides a saline-alkali soil conditioner and a method for improving the saline-alkali soil conditioner.
Description
Technical Field
The invention belongs to the technical field of ecological restoration application, and particularly relates to a saline-alkali soil modifier and a modification method thereof.
Background
Saline-alkali soil is formed under the action of factors such as climate, terrain, topography and the like. The saline-alkali soil is generally located in arid and semi-arid regions with low terrain, shallow underground water level, high mineralization degree and loose soil, the precipitation in the regions is low, the evaporation capacity on the ground is large, salt is collected on the ground surface in the evaporation process, and the saline-alkali soil is formed in a long time. The groundwater in saline-alkali area has slow water flow and high mineralization degree, is close to the ground surface, and mineral elements rise to the ground surface to collect salt on the ground surface after evaporation. Deep-ploughing drought-tolerant plants are usually planted in arid vegetation areas, soil salt can be absorbed and accumulated in the volunteer plants, and the salt is secreted or mineralized, ashed and released into the soil during the growth and development of the plants to form salt. In addition, artificial unreasonable irrigation and excessive fertilization can also form secondary saline-alkali soil.
The high salinity of the saline-alkali soil seriously harms the growth of crops, influences the diversity of organisms, threatens the ecological environment and influences the development of global economy. The high salinity of the saline-alkali soil can destroy the soil structure, and cause the problems of soil hardening, structural adhesion, poor air permeability, weak water permeability, easy loss of water and fertilizer, slow soil temperature rise, high soil volume weight and the like. In addition, the high salinity and the high pH value of the saline-alkali soil inhibit the growth of soil microorganisms, the activity of the soil enzymes is reduced, and the soil nutrient conversion is further influenced. These properties of saline-alkali soils pose a serious hazard to plants.
According to incomplete statistics, the area of the saline soil in the world is about 10 hundred million hm2The salinized land is distributed in more than 100 countries and regions, and the total area of the salinized land in China is about 3.60 multiplied by 107hm2Therefore, how to improve the saline-alkali soil is the key research direction of land restoration at present.
Disclosure of Invention
Aiming at the technical problems of the prior saline-alkali soil, the invention provides the saline-alkali soil modifier which has reasonable formula and convenient processing and can effectively repair the saline-alkali soil and promote the growth of plants and the modification method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that the saline-alkali soil improver comprises three components of A, B and C, wherein the component A is activated carbon modified by nitric acid; the component B is a composite microbial inoculum comprising azotobacter, cellulose degradation bacteria and phosphorus dissolving bacteria; the component C is a compound fertilizer with a core layer of nitrogen-phosphorus-potassium compound fertilizer, a first coating layer of humic acid and a second coating layer of hydroxymethyl cellulose, wherein the weight ratio of the component A to the component B to the component C is 6.5.
The invention also provides an improvement method of the saline-alkali soil, which comprises the following steps:
a. firstly, paving a straw layer on a saline-alkali soil to be restored, and uniformly spraying the component A in the saline-alkali soil conditioner on the straw layer after the straw layer is paved;
b. after the component A is completely sprayed, the composite microbial inoculum provided by the component B in the saline-alkali soil improver is slowly released and then sprayed on the straw layer;
c. after spraying is finished, deep ploughing the saline-alkali soil to be repaired by utilizing deep ploughing equipment;
d. after deep ploughing is finished, uniformly spraying the component C in the saline-alkali soil conditioner on a saline-alkali soil to be repaired;
e. after the application is finished, shallow ploughing the saline-alkali soil to be repaired by utilizing shallow ploughing equipment;
f. and after shallow ploughing is finished, finally spraying organic fertilizer on the surface of the saline-alkali land to be restored.
Preferably, in the step c, the depth of the deep ploughing is between 30cm and 40 cm.
Preferably, in the step e, the depth of the shallow plowing is between 8cm and 12 cm.
Preferably, in the step f, the organic fertilizer is an organic fertilizer containing animal wastes, soybean meal, rotten leaves and vinasse.
Compared with the prior art, the invention has the advantages and positive effects that,
1. the invention provides a saline-alkali soil conditioner and a method for improving the saline-alkali soil conditioner.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the following examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein and, therefore, the present invention is not limited to the specific embodiments disclosed in the following description.
Example 1 this example provides a saline-alkali soil improver
Different from the traditional single modifier repairing agent, the modifier provided by the embodiment is three components, the three components are not mixed but are independently implemented, and the three components are firstly matched in the implementation process, so that the purpose of long-term improvement is achieved.
In this embodiment, the saline-alkali soil improver comprises three components, namely a component a, a component B and a component C, wherein the component a is activated carbon modified by nitric acid, and biochar is a good soil restoration material and has the characteristics of wide preparation raw materials, large specific surface area, developed pore structure, many organic functional groups and the like. Therefore, the water retention of the soil can be greatly improved, a better living space is provided for biological bacteria, and in addition, the granular structure of the activated carbon is favorable for the soil to be breathable and permeable.
The component B is a composite microbial inoculum which comprises azotobacter, cellulose degradation bacteria and phosphorus dissolving bacteria, wherein azotobacter can fix nitrogen element in air as the name suggests, and the nitrogen element is an essential element for plant growth. Whereas cellulolytic bacteria are bacteria capable of decomposing cellulose. Due to the action of cellulase and the like, cellulose can be decomposed until glucose, and straws and the like can be decomposed into nutrient components required by a microbial agent, so that a microbial population is strengthened, the capability of phosphorus-dissolving bacteria for dissolving ineffective phosphorus is strong, plant nutrition is promoted, the disease resistance of plants is increased, the production cost is reduced, and the environmental pollution is reduced. After the phosphate fertilizer is applied to soil, the phosphate fertilizer is very easy to combine with positive ions (calcium, iron, aluminum, magnesium and the like) in the soil to form insoluble phosphorus compounds, and the phosphorus-dissolving bacteria just solve the problems and provide phosphorus elements required by plants.
The main purpose of the component C is to provide nutrient elements, therefore, the component C is a nitrogen-phosphorus-potassium compound fertilizer in the core layer, which can provide nutrients required by plants for saline-alkali soil, the first coating layer is humic acid which has the effect of improving the pesticide effect of the fertilizer and wraps the nitrogen-phosphorus-potassium compound fertilizer, in the slow release process, the absorption of the plants can be effectively promoted, the second coating layer is a hydroxymethyl cellulose compound fertilizer, the hydroxymethyl cellulose has the water absorption effect and can better absorb water permeated from the ground, and meanwhile, the humic acid can also be used as nutrients to be decomposed by cellulose degrading bacteria to generate nutrients along with the passage of time, wherein the weight ratio among the component A, the component B and the component C is 6.5.
When concrete implementation, at first lay one deck straw layer in treating prosthetic saline and alkaline land, the thickness of laying of straw layer is about 5cm, treat that the straw layer is laid and accomplish the back, on it with the even spraying on the straw layer of the modified active carbon in the above-mentioned saline and alkaline land modifier, in this embodiment, the laying of straw layer has two purposes, one is the rising of cutting off groundwater, it is well known that, the leading cause of the formation of saline and alkaline land has groundwater to rise constantly, bring the salinity to the earth's surface, and after the deep ploughing, the straw layer can form underground water and block in the underground, thereby restrain the rising of groundwater, for this reason, and another purpose, then provide the environment for the growth that accords with the microbial inoculum. The purpose of the modified active carbon is to provide living space which meets the microbial inoculum and activate land, so that the land is ventilated.
After the application of the activated carbon is finished, the compound microbial inoculum in the saline-alkali soil modifying agent is slowly released and then sprayed on the straw layer, and the compound microbial inoculum is diluted according to the dilution ratio of 1.
And after spraying is finished, deep ploughing the saline-alkali soil to be repaired by utilizing deep ploughing equipment. The degree of depth of deep ploughing can between 30cm ~ 40cm, such setting can be after the separation of straw layer, and the soil of earth's surface also has certain water capacity of depositing, and the effect of deep ploughing also makes the even distribution of active carbon and composite bacterial agent in the soil of earth's surface, and the straw of this moment in fact also evenly distributed, but because the thickness on straw layer is thick, for this reason, it is when deep ploughing, can also form the partition layer to groundwater. It should be noted here that, in order to improve the survival rate of the complex microbial inoculum, a spraying nozzle is arranged at the front end of the deep ploughing equipment, so that after spraying is completed, deep ploughing is directly performed, and loss of nutrient components is avoided.
After the deep ploughing is finished, the nitrogen-phosphorus-potassium compound fertilizer with two layers of envelopes is sprayed on the saline-alkali land to be restored, after the spraying is finished, shallow ploughing is carried out on the saline-alkali land to be restored by utilizing shallow ploughing equipment, the depth of the shallow ploughing is 8-12 cm, and the purpose of doing so is favorable for utilizing the absorptivity of hydroxymethyl cellulose, so that rainwater from the ground surface is absorbed by the composite fertilizer, and the purpose of water retention is achieved.
And finally, after shallow ploughing is finished, applying organic fertilizer on the surface of the saline-alkali land to be restored. The main purpose of fertilizer is to supply the required nutrition of plant, and after the restoration is accomplished, just can plant the saline and alkaline land, for this reason, the restoration time in saline and alkaline land can before planting crops, like this, along with the planting and continuous restoration of crops, finally reach the purpose of solving the saline and alkaline land problem.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (5)
1. A saline-alkali soil improver is characterized by comprising three components of A, B and C, wherein the component A is activated carbon modified by nitric acid; the component B is a composite microbial inoculum comprising azotobacter, cellulose degradation bacteria and phosphorus dissolving bacteria; the component C is a compound fertilizer with a core layer of nitrogen-phosphorus-potassium compound fertilizer, a first coating layer of humic acid and a second coating layer of hydroxymethyl cellulose, wherein the weight ratio of the component A to the component B to the component C is (6) and is as follows.
2. A method for improving saline-alkali soil is characterized by comprising the following steps:
a. firstly, paving a straw layer on a saline-alkali soil to be restored, and uniformly spraying the component A in the claim 1 on the straw layer after the straw layer is paved;
b. after the component A is sprayed, the composite microbial inoculum provided by the component B in the claim 1 is slowly released and sprayed on the straw layer;
c. after spraying is finished, deep ploughing the saline-alkali soil to be repaired by utilizing deep ploughing equipment;
d. after deep ploughing is finished, uniformly spraying the component C in the claim 1 on the saline-alkali land to be restored;
e. after the application is finished, shallow ploughing the saline-alkali soil to be repaired by utilizing shallow ploughing equipment;
f. and after shallow ploughing is finished, finally spraying organic fertilizer on the surface of the saline-alkali land to be restored.
3. The method for improving saline-alkali soil according to claim 2, wherein in the step c, the depth of deep ploughing is between 30cm and 40 cm.
4. The method for improving saline-alkali soil according to claim 3, wherein in the step e, the depth of the shallow plowing is between 8cm and 12 cm.
5. The method for improving saline-alkali soil according to claim 4, wherein in the step f, the organic fertilizer is an organic fertilizer containing animal wastes, bean pulp, rotten leaves and vinasse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210746727.9A CN115261026A (en) | 2022-06-28 | 2022-06-28 | Saline-alkali soil improver and improving method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210746727.9A CN115261026A (en) | 2022-06-28 | 2022-06-28 | Saline-alkali soil improver and improving method thereof |
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| CN115261026A true CN115261026A (en) | 2022-11-01 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104919931A (en) * | 2015-06-15 | 2015-09-23 | 刘长生 | Saline land improvement method |
| CN105859460A (en) * | 2016-06-28 | 2016-08-17 | 沧州美磷云天化肥有限公司 | Multifunctional compound fertilizer special for saline-alkali soil and preparation method of multifunctional compound fertilizer |
| CN107667593A (en) * | 2017-10-24 | 2018-02-09 | 潍坊友容实业有限公司 | Moderate saline-alkali soil soil ecology depth modification method |
| CN108658655A (en) * | 2017-08-10 | 2018-10-16 | 宜都兴发化工有限公司 | A kind of synergy calcium superphosphate coated fertilizer and the preparation method and application thereof |
| CN109111294A (en) * | 2018-10-24 | 2019-01-01 | 安文彬 | A kind of organic microbial complex ecological fertilizer and preparation method thereof |
| CN111083958A (en) * | 2019-12-31 | 2020-05-01 | 潍坊友容实业有限公司 | Saline-alkali soil improvement method |
| CN113943191A (en) * | 2021-10-08 | 2022-01-18 | 湛江拉多美科技有限公司 | Microorganism-containing humic acid fertilizer and preparation method thereof |
| CN114145095A (en) * | 2021-11-30 | 2022-03-08 | 中国农业科学院果树研究所 | Planting method suitable for saline-alkali soil remediation and improvement |
| CN114409471A (en) * | 2022-01-21 | 2022-04-29 | 窑街煤电集团有限公司 | Mineral source biochar soil conditioner and preparation method thereof |
-
2022
- 2022-06-28 CN CN202210746727.9A patent/CN115261026A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104919931A (en) * | 2015-06-15 | 2015-09-23 | 刘长生 | Saline land improvement method |
| CN105859460A (en) * | 2016-06-28 | 2016-08-17 | 沧州美磷云天化肥有限公司 | Multifunctional compound fertilizer special for saline-alkali soil and preparation method of multifunctional compound fertilizer |
| CN108658655A (en) * | 2017-08-10 | 2018-10-16 | 宜都兴发化工有限公司 | A kind of synergy calcium superphosphate coated fertilizer and the preparation method and application thereof |
| CN107667593A (en) * | 2017-10-24 | 2018-02-09 | 潍坊友容实业有限公司 | Moderate saline-alkali soil soil ecology depth modification method |
| CN109111294A (en) * | 2018-10-24 | 2019-01-01 | 安文彬 | A kind of organic microbial complex ecological fertilizer and preparation method thereof |
| CN111083958A (en) * | 2019-12-31 | 2020-05-01 | 潍坊友容实业有限公司 | Saline-alkali soil improvement method |
| CN113943191A (en) * | 2021-10-08 | 2022-01-18 | 湛江拉多美科技有限公司 | Microorganism-containing humic acid fertilizer and preparation method thereof |
| CN114145095A (en) * | 2021-11-30 | 2022-03-08 | 中国农业科学院果树研究所 | Planting method suitable for saline-alkali soil remediation and improvement |
| CN114409471A (en) * | 2022-01-21 | 2022-04-29 | 窑街煤电集团有限公司 | Mineral source biochar soil conditioner and preparation method thereof |
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