CN114479868B

CN114479868B - Soil conditioner, preparation method thereof and soil conditioning method

Info

Publication number: CN114479868B
Application number: CN202111651805.9A
Authority: CN
Inventors: 郝连国; 蒋玉洪; 杨光亚; 李悦鸿; 张群; 刘东春; 郑治国; 蒋子旭; 裴振兴; 吴淑丽; 杜思辰; 姜南; 任曦
Original assignee: Shanxin Ketao Technology Beijing Co ltd
Current assignee: Shanxin Ketao Technology Beijing Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2023-07-21
Anticipated expiration: 2041-12-30
Also published as: CN114479868A

Abstract

The application discloses a soil conditioner, a preparation method thereof and a soil conditioning method, and belongs to the technical field of soil conditioning. The soil conditioner comprises the following components in percentage by mass: flocculant 0.7-1.3%, antibacterial agent 0.2-0.8%, reducer 0.2-0.8%, and balance of nutrient solution based on water-soluble sacrificial paper. The soil conditioner has excellent soil improvement effect.

Description

Soil conditioner, preparation method thereof and soil conditioning method

Technical Field

The application relates to the technical field of soil improvement, in particular to a soil conditioner and a preparation method and a soil improvement method thereof.

Background

Soil hardening refers to the phenomenon that the porosity in soil is reduced, and the surface layer of the soil becomes compact, hard and even cracks under the action of external forces such as unreasonable cultivation, water flushing or mechanical rolling. Soil hardening can lead to the water holding and guiding capacity of soil to be reduced, and then the growth of crops is affected.

In the related art, soil hardening is improved by deep ploughing, namely, deep soil is turned up, and shallow soil is sunk down. However, the method has short effective duration, and deep ploughing is required to be carried out regularly according to the soil condition, which is time-consuming and labor-consuming.

Disclosure of Invention

In view of the above, the present application provides a soil conditioner, and a preparation method and application thereof, which can solve the above technical problems. The specific technical scheme is as follows:

in a first aspect, embodiments of the present application provide a soil conditioner, the soil conditioner includes the following components in percentage by mass:

flocculant 0.7-1.3%, antibacterial agent 0.2-0.8%, reducer 0.2-0.8%, and balance of nutrient solution based on water-soluble sacrificial paper.

In some possible implementations, the water-soluble sacrificial paper-based nutrient solution is obtained by:

uniformly mixing water-soluble sacrifice paper and water to obtain a mixed solution, wherein the mass percentage of the water-soluble sacrifice paper in the mixed solution is 1% -5%;

fermenting the mixed solution at 18-38 ℃ for 2-10 days to obtain the water-soluble sacrificial paper-based nutrient solution.

In some possible implementations, the water-soluble sacrificial paper comprises: starch, phospholipids, fibers, and gelatin.

In some possible implementations, the flocculant includes at least one of ferrous sulfate, polyacrylamide.

In some possible implementations, the antimicrobial agent includes at least one of aspirin, silver superoxide, metronidazole, potassium permanganate, and plant ash.

In some possible implementations, the reducing agent includes vitamin C.

In a second aspect, an embodiment of the present application provides a method for preparing a soil conditioner, where the method is applied to the soil conditioner according to the first aspect, and the method includes:

and adding a flocculating agent, an antibacterial agent and a reducing agent into the nutrient solution based on the water-soluble sacrifice paper according to the mass percent of each component of the soil conditioner, and uniformly stirring to obtain the soil conditioner.

uniformly mixing water-soluble sacrifice paper and water to obtain a mixed solution;

In some possible implementations, the mixed solution is sacrifice waste water generated when sacrifice is performed using water-soluble sacrifice paper.

In a third aspect, embodiments of the present application provide a soil improvement method using the soil improvement agent of the first aspect.

The soil conditioner provided by the embodiment of the application uses a nutrient solution based on water-soluble sacrifice paper, namely the nutrient solution is from a mixture of the water-soluble sacrifice paper and water. Based on the characteristics of the water-soluble sacrifice paper, the nutrient solution based on the water-soluble sacrifice paper at least comprises glucose, various amino acids and water, wherein the glucose is used in the soil and can play a role of a carbon source, thereby being beneficial to providing good cultivation conditions for microorganisms in the soil and preventing the soil from aging; the amino acid is used in soil to improve the water and fertilizer retaining capacity of the soil, and creates good conditions for the growth and development of plant root systems. Therefore, the soil conditioner has the functions of nourishing and fattening the soil by using the nutrient solution based on the water-soluble sacrifice paper. In addition, the soil conditioner also cooperates with flocculating agent, antibacterial agent and reducing agent in a certain proportion to achieve the effects of improving soil structure, preserving water and soil, preserving fertilizer, resisting bacteria and sterilizing and improving soil self-repairing effect, so that the soil conditioner provided by the embodiment of the application shows excellent soil improvement effect.

Detailed Description

In order to make the technical solution and advantages of the present application more apparent, embodiments of the present application will be described in further detail below.

In a first aspect, embodiments of the present application provide a soil conditioner, the soil conditioner comprising the following components in percentage by mass: flocculant 0.7-1.3%, antibacterial agent 0.2-0.8%, reducer 0.2-0.8%, and balance of nutrient solution based on water-soluble sacrificial paper.

In the embodiment of the application, the proportion of each component can be arbitrarily valued within a limited range, and the total mass percent of the nutrient solution, the flocculating agent, the antibacterial agent and the reducing agent based on the water-soluble sacrifice paper is only required to be 100 percent.

For example, the flocculant may be 0.7%, 0.75%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3% by mass in the soil conditioner, etc.

The mass percentage of the antibacterial agent in the soil conditioner can be 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.65%, 0.7%, 0.8% and the like.

The mass percentage of the reducing agent in the soil conditioner can be 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8% and the like.

The mass percentage of the nutrient solution based on the water-soluble sacrifice paper in the soil conditioner can be 95%, 95.5%, 96%, 97%, 97.8%, 98%, 98.2%, 99% and the like.

The mass percentages of the components in the soil conditioner provided by the embodiment of the application are controlled within the range, so that the components can better cooperate, the soil conditioner provided by the embodiment of the application has excellent soil conditioning effect, and the water-soluble sacrificial paper can fully play the role.

The following are exemplary descriptions of the composition and effects of the components involved in the soil conditioner:

nutrient solution based on water-soluble sacrificial paper

In the embodiment of the present application, a water-soluble sacrifice paper-based nutrient solution is used, wherein the water-soluble sacrifice paper-based nutrient solution is derived from a mixture of the water-soluble sacrifice paper and water. The nutrient solution based on the water-soluble sacrifice paper can be obtained after the sacrifice waste water generated in the sacrifice process based on the water-soluble sacrifice paper is treated, so that the effective utilization of the sacrifice waste water generated in the sacrifice process based on the water-soluble sacrifice paper is realized, the environment is protected, and the cost is reduced.

In some possible embodiments, the water-soluble sacrificial paper-based nutrient solution is obtained by the following method:

the water-soluble sacrifice paper and water are uniformly mixed to obtain a mixed solution, wherein the mass percent of the water-soluble sacrifice paper in the mixed solution is 1-5%.

For example, the mass percentage of the water-soluble sacrifice paper in the mixed solution may be 1%, 1.5%, 1.8%, 2%, 2.5%, 3%, 4%, 5%, etc.

The fermentation temperature of the mixed solution may be 18 ℃, 20 ℃, 22 ℃, 25 ℃, 28 ℃, 30 ℃, 32 ℃, 35 ℃, 37 ℃, 38 ℃, etc.

The fermentation time of the mixed solution can be 2 days, 3 days, 4 days, 5 days, 6 days, 7 days, 8 days, 9 days, 10 days, etc.

The water-soluble sacrifice paper in the embodiment of the application is also called as a water-soluble paper sacrifice product, is a green funeral product, and is prepared from the following raw materials: 7-9% of unmodified starch, 11-15% of gelatin, 11-15% of phospholipid emulsion, 0.2-1% of plasticizer, 0.2-1% of modifier, 0.6-1% of calcium oxide and the balance of modified starch.

For unmodified starch, in the embodiment of the invention, common unmodified starch is used for reducing the transmittance of sacrifice paper so as to facilitate printing. Some suitable unmodified starches are selected from at least one of corn starch, tapioca starch, sweet potato starch, wheat starch, for example, the unmodified starch is corn starch or tapioca starch.

The modified starch is common in the art, and the modified starch in the embodiment of the invention can be modified by a chemical, physical or enzymatic modification method, wherein the modified starch is at least one selected from modified corn starch, modified tapioca starch, modified sweet potato starch, modified potato starch and modified wheat starch.

For chemical modification, it includes but is not limited to: depolymerization of starch, oxidation of starch, reduction of starch, etherification of starch, esterification of starch, nitration of starch, degreasing of starch, hydrophobization of starch, etc. For example, chemically modified starches may also be prepared by any combination of chemical treatments. Some examples of chemically modified starches include, but are not limited to, the following:

reacting alkenyl succinic anhydrides, particularly octenyl succinic anhydride, with starch to produce a hydrophobic esterified starch; reacting 2, 3-epoxypropyl trimethyl ammonium chloride with starch to produce cationized starch; reacting ethylene oxide with starch to produce hydroxyethyl starch; reacting hypochlorite with starch to produce oxidized starch; reacting an acid with starch to produce an acid depolymerized starch; the starch is defatted with solvents such as methanol, ethanol, propanol, methylene chloride, chloroform, carbon tetrachloride, etc. to produce defatted starch.

For physical modification, this includes, but is not limited to: heat treating starch in the presence of water, heat treating starch in the absence of water, disrupting the starch granules by any mechanical means, pressure treating the starch to melt the starch granules, and the like. Some examples of physically modified starches include, but are not limited to, the following: heat treating starch in an aqueous environment to expand but not rupture the starch granules; subjecting the anhydrous starch granules to a heat treatment to rearrange the polymer; crushing starch particles by mechanical crushing; and, subjecting the starch granules to a pressure treatment by an extruder to melt the starch granules.

For enzyme modification, this includes, but is not limited to: reacting an alpha amylase with starch, reacting a protease with starch, reacting a lipase with starch, reacting a phosphorylase with starch, reacting an oxidase with starch, and the like.

Some examples of enzymatic modifications of starch include, but are not limited to, the following: reacting an alpha-amylase with starch to produce a depolymerized starch; reacting an alpha amylase debranching enzyme with starch to produce debranched starch; reacting a protease with starch to produce a starch having a reduced protein content; reacting a lipase with starch to produce a starch having a reduced lipid content; reacting a phosphorylase with starch to produce an enzyme-modified phosphorylated starch; and reacting the oxidase with the starch to produce enzymatically oxidized starch.

Illustratively, the modified starches used in the examples of the present invention are food grade modified starches, i.e., modified starches capable of achieving an edible grade are suitable for use in the present invention.

The phospholipid emulsion is prepared on site, and the phospholipid emulsion can be prepared by adopting the following method: heating a sodium hydroxide solution with the mass concentration of 1% -3% to 80-90 ℃, then adding phospholipid into the sodium hydroxide solution, uniformly stirring, and then sieving to obtain the phospholipid emulsion.

In some examples, the phospholipid used in the present embodiments is lecithin, a phospholipid product commonly found in the art, e.g., lecithin is lecgsran 1000P powder available from jia limited.

The mass concentration of the sodium hydroxide solution includes, but is not limited to: 1%, 1.5%, 2%, 2.5%, 3%, etc.; the treatment temperature of the sodium hydroxide solution includes, but is not limited to, the following: 80 ℃, 81 ℃, 82 ℃, 83 ℃, 84 ℃, 85 ℃, 86 ℃, 87 ℃, 88 ℃, 89 ℃, 90 ℃, etc. By keeping the concentration and temperature of the sodium hydroxide solution in the above-mentioned ranges, it is advantageous to sufficiently dissolve the phospholipid uniformly.

In some possible implementations, the mass ratio of phospholipid to sodium hydroxide contained in the sodium hydroxide solution in the phospholipid emulsion is 45-55:1, e.g., 45:1, 46:1, 47:1, 48:1, 50:1, 52:1, etc.

In some possible implementations, the pH of the phospholipid emulsion ranges from 8 to 9 to ensure that the starch structure is not destroyed.

In some examples, the phospholipid emulsion is formulated by: heating a sodium hydroxide solution with the mass concentration of 2% to 85 ℃, then adding phospholipid (wherein the mass ratio of the phospholipid to the sodium hydroxide is 45-55:1) into the sodium hydroxide solution, stirring uniformly, and then carrying out third sieving treatment by using a sieve with the mesh number of 80 to obtain the phospholipid emulsion with the pH value of 9.

The gelatin can be edible gelatin, and the modifier is toluene diisocyanate or its derivative. Among them, a toluene diisocyanate derivative can be shown in patent document CN 111662328A. The plasticizer is citrate.

In order to control the mass percentage of the water-soluble sacrifice paper in the mixed solution to be in the range of 1-5%, the method can be realized by the following steps:

firstly, when a user uses the water-soluble sacrifice paper for sacrifice, the water quantity of water needed by the water-soluble sacrifice paper to be sacrificed for dissolving the water-soluble sacrifice paper can be determined according to the mass percent of the water-soluble sacrifice paper in the mixed solution. The water amount can be determined by a user on site, or can be annotated in advance on the package of the water-soluble sacrifice paper, for example, how much water amount is needed to be matched for each package of sacrifice paper. The mode is simple to operate and convenient to popularize and apply. Thus, after the sacrifice, the user can obtain the mixed solution of the water-soluble sacrifice paper and water, and then the mixed solution is subjected to post-treatment, so that the nutrient solution based on the water-soluble sacrifice paper can be obtained.

Secondly, after sacrifice, the user directly receives the mixed solution of the water-soluble sacrifice paper and water, and determines whether the mass ratio of the water-soluble sacrifice paper in the mixed solution meets the requirement by measuring the mass of the water-soluble sacrifice paper component in the mixed solution. If the requirement is not satisfied, the concentration of the mixed solution can be adjusted by a filtering means or a means of further increasing the content of the water-soluble sacrificial paper until the requirement is satisfied.

Generally, the water-soluble sacrificial paper comprises the following components: starch, fiber, phospholipids, gelatin, and the like, which are desirable components of soil amendments. For example, the starch may be at least one of corn starch, tapioca starch, mung bean starch, raw meal, and potato starch; the phospholipid may be lecithin, etc.

Based on the components of the water-soluble sacrifice paper, after the water-soluble sacrifice paper is mixed with water to form a mixed solution, starch can be decomposed into glucose and phospholipid can be decomposed into amino acids by fermenting the mixed solution, so that the obtained nutrient solution based on the water-soluble sacrifice paper at least comprises glucose and a plurality of amino acids.

Wherein, the fermentation process can be natural fermentation or inoculation fermentation. Wherein, natural fermentation is a fermentation process using microorganisms in a natural environment; the inoculation fermentation is to add pure fermentation bacteria subjected to artificial culture into fermentation liquid to be fermented for fermentation.

In some possible embodiments, the water-soluble sacrificial paper-based nutrient solution comprises the following components in percentage by mass:

glucose and 1% -10% of various amino acids, and the balance of water. For example, the total mass percent of glucose and the plurality of amino acids may be 1%, 2%, 3%, 4%, 5%, 6%, 6.5%, 7%, 8%, 9%, 10%, etc.

In some examples, the plurality of amino acids may be glycine, alanine, valine, leucine, isoleucine, methionine, proline, and the like, as are common in the art.

For flocculant

In some possible implementations, the flocculant used in embodiments of the present application includes at least one of ferrous sulfate, polyacrylamide, for example, the flocculant is ferrous sulfate.

Based on the low cost and easy acquisition, ferrous sulfate is used as a flocculant. Ferrous sulfate as flocculant can increase the cohesive force among the particles on the surface layer of soil, maintain good soil structure, prevent soil crust, increase the infiltration rate of soil, prevent soil loss, better inhibit the evaporation capacity of soil moisture, and have the effects of water retention, soil retention, fertilizer retention, yield increase and the like. In addition, ferrous sulfate can react with phosphate in soil to generate precipitate, so that the phosphate is removed from the soil, meanwhile, the ferrous sulfate also has certain reducibility to reduce heavy metal chromates, adjust the pH value of the soil, and can also provide iron for plants, improve photosynthesis of plant leaves, promote chlorophyll formation in the plants and prevent yellowing diseases of the plants caused by iron deficiency.

For antibacterial agents

In some possible implementations, the antimicrobial agent used in embodiments of the present application includes at least one of aspirin, silver superoxide, metronidazole, potassium permanganate, and plant ash. For example, the antimicrobial agent is aspirin.

The aspirin is dissolved into salicylic acid and acetic acid when meeting water, the salicylic acid has the effects of resisting bacteria and preventing diseases, not only can improve plant resistance, but also can prevent root systems from being damaged by bacteria and germs, and can enable protective cells around plant air holes to be closed, so that water evaporation of plants is reduced. Acetic acid can inhibit the biological activity of glycollic acid oxidase in plants in the respiration process of the plants, so that the respiration of the plants is weakened, the accumulation of photosynthetic products is increased, the survival rate of the plants is improved, and meanwhile, the acetic acid can reduce the evaporation of water in the plants, so that the plant drought resistance enhancing effect is achieved to a certain extent.

For reducing agents

In some possible implementations, the reducing agent used in embodiments of the present application includes vitamin C.

The vitamin C has reducibility, can remove active oxygen generated by oxygen metabolism, photosynthesis and environmental stress in plants, can activate plant cells in soil, increases the extensibility of cell walls and the interactivity among cells, and can consume excessive light energy and protect the normal operation of photosynthesis, thereby helping plants to strengthen drought resistance and reducing the damage of excessive ultraviolet rays and ozone to the plants.

In a second aspect, embodiments of the present application further provide a method for preparing a soil conditioner, where the soil conditioner is as described in the first aspect, and the method for preparing the soil conditioner includes the following steps:

according to the mass percentage of each component of the soil conditioner, adding flocculating agent, antibacterial agent and reducing agent into the nutrient solution based on the water-soluble sacrifice paper, and uniformly stirring to obtain the soil conditioner.

The preparation method of the soil conditioner is simple, and the obtained soil conditioner has excellent soil conditioning effect, so that sacrifice waste water generated in the sacrifice process is reused.

The soil conditioner prepared by the preparation method of the soil conditioner uses a nutrient solution based on water-soluble sacrifice paper, namely the nutrient solution is a mixture of the water-soluble sacrifice paper and water. Based on the characteristics of the water-soluble sacrifice paper, the nutrient solution based on the water-soluble sacrifice paper at least comprises glucose, various amino acids and water, wherein the glucose is used in the soil and can play a role of a carbon source, thereby being beneficial to providing good cultivation conditions for microorganisms in the soil and preventing the soil from aging; the amino acid is used in soil to improve the water and fertilizer retaining capacity of the soil, and creates good conditions for the growth and development of plant root systems. Therefore, the soil conditioner has the functions of nourishing and fattening the soil by using the nutrient solution based on the water-soluble sacrifice paper. In addition, the soil conditioner also cooperates with flocculating agent, antibacterial agent and reducing agent in a certain proportion to achieve the effects of improving soil structure, preserving water and soil, preserving fertilizer, resisting bacteria and sterilizing and improving soil self-repairing effect, so that the soil conditioner provided by the embodiment of the application shows excellent soil improvement effect.

In some examples, the means for homogenizing the water-soluble sacrificial paper-based nutrient solution, flocculant, antimicrobial agent, and reducing agent may be magnetic stirring, electric stirring, or the like.

The temperature range of the uniform stirring can be 15-35 ℃. For example, the temperature at which the stirring is uniform may be 15 ℃, 17 ℃, 19 ℃, 20 ℃, 25 ℃, 30 ℃, or 35 ℃.

In the embodiment of the application, the nutrient solution based on the water-soluble sacrifice paper is obtained by the following method:

step 1: the water-soluble sacrificial paper and water are uniformly mixed to obtain a mixed solution.

Step 2: fermenting the mixed solution at 18-38 ℃ for 2-10 days to obtain the water-soluble sacrificial paper-based nutrient solution.

For step 1: the amount of the water-soluble sacrificial paper in the mixed solution can be determined according to the mass percentage of the water-soluble sacrificial paper in the mixed solution.

As described above, in order to control the mass percentage of the water-soluble sacrifice paper in the mixed solution to 1% to 5%, it can be achieved by:

first, when the user uses the water-soluble sacrifice paper for sacrifice, the amount of water needed by the water-soluble sacrifice paper to be sacrificed (i.e., the amount of water contained in the mixed solution) can be determined according to the mass percentage of the water-soluble sacrifice paper in the mixed solution. The water amount can be determined by a user on site, or can be annotated in advance on the package of the water-soluble sacrifice paper, for example, how much water amount is needed to be matched for each package of sacrifice paper. The mode is simple to operate and convenient to popularize and apply. Thus, after the sacrifice, the user can obtain the mixed solution of the water-soluble sacrifice paper and water, and then the mixed solution is subjected to post-treatment, so that the nutrient solution based on the water-soluble sacrifice paper can be obtained.

Before the mixed solution is fermented, the mixed solution can be subjected to stirring, ultrasonic treatment, vibration and other operations to ensure uniform texture and optimize fermentation conditions.

For step 2: fermenting the mixed solution at 18-38 ℃ for 2-10 days to obtain a water-soluble sacrificial paper-based nutrient solution, which can be realized by the following steps:

and (3) placing the mixed solution in a fermentation tank, and keeping the temperature of the fermentation tank at 18-38 ℃ for 2-10 days to obtain a fermentation solution, wherein the fermentation solution is the nutrient solution based on the water-soluble sacrifice paper.

In some embodiments, step 2 may be further performed by artificial fermentation, namely, sterilizing the mixed solution to obtain a sterilized mixed solution, then placing the sterilized mixed solution in a fermentation tank, adding artificial strain, and maintaining the temperature of the fermentation tank at 18-38 ℃ for 2-10 days to obtain the water-soluble sacrificial paper-based nutrient solution.

In some examples, the artificial bacterial species includes at least one of yeast, streptococcus thermophilus, lactococcus and leuconostoc.

In some examples, the temperature of the fermentation ranges from 18 ℃ to 38 ℃. For example, the temperature of fermentation may be 18 ℃, 20 ℃, 25 ℃, 27 ℃, 29 ℃, 30 ℃, 32 ℃, 35 ℃, 38 ℃, or the like.

In some examples, the time period of fermentation ranges from 2 to 10 days. For example, the fermentation time may be 2 days, 3 days, 4 days, 5 days, 6 days, 7 days, 8 days, 9 days, 10 days, or the like.

In some examples, the fermentation is performed in air. That is, the fermentation process need not be air-tight.

In some embodiments, the method for preparing a water-soluble sacrificial paper-based nutritional liquid further comprises: removing suspended matters in the fermentation solution to obtain the nutrient solution based on the water-soluble sacrifice paper.

Wherein the suspended matter in the fermentation solution comprises fibers to further ensure green environmental protection.

In some examples, the method of removal of the suspended matter may be filtration, centrifugation, or the like. For example, the fermentation solution is passed through a membrane to filter out suspended matters therein, thereby obtaining a uniform nutrient solution based on water-soluble sacrifice paper.

In a third aspect, embodiments of the present application also provide a soil improvement method using the soil improvement agent of the first aspect.

The soil amendment may be applied to the soil in a variety of ways, including, but not limited to, the following:

the method comprises the following steps: the soil conditioner is sprayed onto the roots of the plants, for example, the soil conditioner may be diluted to a certain concentration first and then sprayed.

The second method is as follows: deeply ploughing soil (for example, the soil is in a hardened state), uniformly mixing a soil conditioner and an organic fertilizer, and sprinkling the soil conditioner and the organic fertilizer into the deeply ploughed soil.

The following are described separately for each of the above methods:

for the first method, the soil conditioner is diluted and then sprayed on the roots of plants.

The application method is very convenient, can play a role of fertilizer, supplements organic substances such as glucose, amino acid and the like for soil, regulates the pH of the soil, improves the physical and chemical properties of the soil and promotes the propagation of beneficial microorganisms.

In some examples, the diluent of the soil amendment is water.

In some examples, the soil conditioner is diluted by a factor of 8 to 11. For example, the soil amendment may be diluted 8-fold, 8.5-fold, 9-fold, 10-fold, 11-fold, or the like.

And for the second method, deep turning over the plate to form soil, uniformly mixing the soil conditioner with the organic fertilizer, and sprinkling the soil conditioner in the plate to form soil.

The application method of the soil conditioner can fully exert the soil hardening resistance effect of the soil conditioner in the embodiment of the application, and has long acting time without needing periodical deep ploughing.

In some examples, the ratio of soil amendment to organic fertilizer is (0.5-2): 10. for example, the ratio of soil amendment to fertilizer may be 0.5:10,1:10,1.5:10,1.8:10, 2:10, etc.

In some examples, 1m ² The mass range of the mixture of the soil conditioner and the organic fertilizer for the land with the area is 0.3 kg-2 kg. For example, 1m ² The mass of the mixture of the area-use soil conditioner and the organic fertilizer may be 0.3kg, 0.5kg, 0.8kg, 1kg, 1.5kg, 1.8kg, 2kg, or the like.

By controlling the conditions, the soil conditioner provided by the embodiment of the application can fully play a role in resisting soil hardening.

Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. The specific techniques or conditions are not identified in the examples and are performed according to techniques or conditions described in the literature in this field or according to the product specifications. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention. In the examples below, "%" refers to weight percent, unless explicitly stated otherwise.

The water-soluble sacrificial papers in the following examples were prepared by the following method:

providing the following raw materials in percentage by mass: 69% of edible modified corn starch, 9% of unmodified starch, 10% of gelatin, 10% of phospholipid emulsion, 0.5% of plasticizer, 0.5% of modifier and 1% of calcium oxide. Wherein, the phospholipid used in the phospholipid emulsion is lecithin, and is prepared by the following method: heating a sodium hydroxide solution with the mass concentration of 2% to 85 ℃, then adding phospholipid (wherein the mass ratio of the phospholipid to the sodium hydroxide is 50:1) into the sodium hydroxide solution, stirring uniformly, and then sieving by using a sieve with the mesh number of 80 meshes to obtain the phospholipid emulsion with the pH value of 9. The plasticizer is citrate; the modifier is toluene diisocyanate derivative.

Uniformly mixing unmodified starch and modified starch, and then carrying out first sieving treatment by using a sieve with the mesh number of 80 meshes to obtain the sieved starch. Adding 55 ℃ water into the sieved starch for emulsification treatment, and then carrying out second sieving treatment by using a screen with the mesh number of 80 meshes to obtain starch emulsion. After the starch emulsion is obtained, the starch emulsion is injected into gelatinization equipment.

According to the mass ratio of the components, heating the starch emulsion to 50 ℃, adding gelatin, phospholipid emulsion, plasticizer, modifier and calcium oxide into the starch emulsion under the stirring condition, and then carrying out gelatinization treatment for 3 hours to obtain starch gelatinized liquid. The starch pasting liquid is subjected to film forming treatment to obtain the water-soluble sacrifice paper.

Example 1

The embodiment 1 of the application provides a soil conditioner, which comprises the following components in percentage by mass:

flocculant 0.98%, antibacterial agent 0.49%, reducing agent 0.49%, and nutrient solution based on water-soluble sacrifice paper 98.04%.

The nutrient solution based on the water-soluble sacrifice paper is obtained by the following method:

20kg of water-soluble sacrifice paper was dissolved in 1000kg of water and stirred uniformly to obtain a mixed solution. The mixed solution is naturally fermented for 8 days at 20 ℃ to obtain the nutrient solution based on the water-soluble sacrifice paper.

The soil conditioner is prepared by the following steps:

according to the mass percentage of each component, adding ferrous sulfate, aspirin and vitamin C into the nutrient solution based on the water-soluble sacrifice paper, and uniformly stirring to obtain the soil conditioner.

Example 2

The embodiment 2 of the application provides a soil conditioner, which comprises the following components in percentage by mass:

1.12% of flocculant, 0.73% of antibacterial agent, 0.49% of reducing agent and 97.66% of nutrient solution based on water-soluble sacrifice paper.

30kg of water-soluble sacrifice paper was dissolved in 1000kg of water and mixed uniformly by ultrasonic waves to obtain a mixed solution. Then inoculating and fermenting the mixed solution at 20 ℃ for 7 days to obtain the water-soluble sacrificial paper-based nutrient solution.

The soil conditioner is prepared by the following steps:

according to the mass percentage of each component, ferrous sulfate, aspirin and vitamin C are added into the nutrient solution based on the water-soluble sacrifice paper, and the soil conditioner is obtained after uniform stirring.

Example 3

The embodiment 3 of the application provides a soil conditioner, which comprises the following components in percentage by mass:

flocculant 0.98%, antibacterial agent 0.59%, reducing agent 0.59%, and nutrient solution based on water-soluble sacrifice paper 97.84%.

20g of water-soluble sacrifice paper was dissolved in 1000g of water, and stirred uniformly with a magnetic stirrer to obtain a mixed solution. Then the mixed solution is naturally fermented for 10 days at the temperature of 23 ℃ to obtain the nutrient solution based on the water-soluble sacrifice paper.

The soil conditioner is prepared by the following steps:

Example 4

The embodiment 4 of the application provides a soil conditioner, which comprises the following components in percentage by mass:

30g of water-soluble sacrifice paper was dissolved in 1000g of water and mixed uniformly with a shaker to obtain a mixed solution. Then inoculating and fermenting the mixed solution at 35 ℃ for 7 days to obtain the water-soluble sacrificial paper-based nutrient solution.

The soil conditioner is prepared by the following steps:

Example 5

The embodiment 5 of the application provides a soil conditioner, which comprises the following components in percentage by mass:

flocculant 0.98%, antibacterial agent 0.69%, reducing agent 0.29%, and nutrient solution based on water-soluble sacrifice paper 98.04%.

dissolving 35g of water-soluble sacrifice paper in 1000g of water, uniformly stirring by a stirrer to obtain a mixed solution, naturally fermenting the mixed solution at 18 ℃ for 5 days to obtain a fermentation solution, and removing fibers in the fermentation solution by filtration to obtain the nutrient solution based on the water-soluble sacrifice paper.

The soil conditioner is prepared by the following steps:

Application examples

This application example evaluates the performance of the soil conditioner provided in example 1 on soil improvement, and the performance of the soil conditioner was evaluated by the effect of the soil conditioner provided in example 1 on soil pH and plant growth.

The soaping slag is industrial slag, the pH value is about 12, and the soaping slag is rich in nutrient elements such as calcium, magnesium and the like. The open-air piling of the saponification slag has the problems of occupation of land, dust emission and the like, not only threatens the environment, but also restricts the sustainable development of factories. In order to comprehensively utilize the saponification slag, the bottom-layer saponification slag, the fly ash and the special curing agent are mixed to achieve the aim of stable curing, so that the saponification slag forms stable salts to achieve fixed-point landfill without polluting the environment. Meanwhile, the artificial soil is prepared by mixing the soaping slag with the soil and the soil conditioner above the landfill area, so that the landfill area becomes a farmland capable of being cultivated, and the purposes of environmental protection and changing waste into valuables are achieved.

The specific evaluation process comprises the following steps: soil conditioner, soaping slag and soil are mixed and then are placed into a culture dish, and the effect on the pH of the soil and the growth of crops is studied by carrying out potting test on the cabbages, wherein the specific parameters are shown in Table 1. In the experimental process, the 3 tests are numbered as No. 1, no. 2 and No. 3 in sequence.

TABLE 1

As can be seen from Table 1, the seedlings and the overall growth vigor of the cabbages are synthesized, the seedlings of the No. 1 cabbages and the No. 3 cabbages can grow normally, the growth vigor of the No. 1 cabbages is superior to that of the No. 3 cabbages, and the seedlings and the growth of the No. 2 cabbages are inhibited due to the too high pH value of the soil. The soil conditioner with 15% of the soil conditioner has better soil improvement effect, and crops can grow better.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the present application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. The specification and examples are to be regarded in an illustrative manner only.

Claims

1. The soil conditioner is characterized by comprising the following components in percentage by mass:

0.7-1.3% of flocculant, 0.2-0.8% of antibacterial agent, 0.2-0.8% of reducing agent, and the balance of nutrient solution based on water-soluble sacrificial paper;

and fermenting the mixed solution at 18-38 ℃ for 2-10 days to obtain the nutrient solution based on the water-soluble sacrifice paper.

2. The soil conditioner according to claim 1, wherein the water-soluble sacrificial paper comprises: starch, phospholipids, fibers, and gelatin.

3. The soil conditioner of claim 1, wherein the flocculant comprises at least one of ferrous sulfate and polyacrylamide.

4. The soil conditioner of claim 1, wherein the antimicrobial agent comprises at least one of aspirin, silver superoxide, metronidazole, potassium permanganate, and plant ash.

5. The soil amendment of claim 1, wherein the reducing agent comprises vitamin C.

6. A method for preparing a soil conditioner, wherein the method is applied to the soil conditioner according to any one of claims 1 to 5, and the method comprises:

fermenting the mixed solution at 18-38 ℃ for 2-10 days to obtain a nutrient solution based on water-soluble sacrifice paper;

7. The method according to claim 6, wherein the mixed solution is sacrifice waste water generated when sacrifice is performed by using water-soluble sacrifice paper.

8. A soil improvement method, characterized in that the soil improvement method uses the soil improvement agent according to any one of claims 1 to 5.