Deep ploughing-free soil loosening and root promoting agent

Abstract

The invention discloses a deep ploughing-free soil loosening and root promoting agent which is prepared from the following components in parts by mass: 2-4 parts of polyacrylamide, 6-13 parts of humic acid, 4-10 parts of a microbial agent, 15-25 parts of zeolite, 10-20 parts of diatomite, 13-24 parts of an organic fertilizer, 5-8 parts of a biostimulant, 1-5 parts of a trace element complex and 1-3 parts of a dispersing agent. Polyacrylamide is modified, polyacrylic acid is introduced for copolymerization, so that carboxyl groups are introduced for adjusting the pH value of the whole soil, and meanwhile, the carboxyl groups have good hydrophilicity and can be better fused into water, so that the carboxyl groups are more easily attached to the surfaces of diatomite and zeolite to form a more compact wrapping state; and meanwhile, zeolite and diatomite are screened.

Description

Technical Field

[0001] The invention relates to the field of root promoting agents, in particular to a soil loosening and root promoting agent that does not require deep tillage. Background Art

[0002] The growth of plants depends on the root system. Plants extend their roots into the soil to absorb nutrients from the soil. Therefore, the development of the plant root system seriously affects the later growth and development of vegetation. The biggest influence on the plant root system is the air permeability of the soil, the hardness of the soil, and the various nutrients in the soil.

[0003] In order to achieve the effect of loosening the soil, technicians in this field usually use loosening agents to loosen the soil and promote the development of the root system. However, a large number of root promoters currently deal with the cross-balancing treatment of soil air permeability and soil moisture retention. It is impossible to achieve both moisture retention and air permeability, and only one of them can be selected or biased. Therefore, how to achieve both is one of the problems that existing technicians urgently need to deal with.

[0004] To this end, we proposed a soil loosening and root promoting agent that does not require deep tillage to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a soil loosening and root promoting agent that does not require deep tillage to solve the problems raised in the above-mentioned background technology. The technical solution of the present invention provides a solution that is significantly different from the prior art in order to solve the technical problem that the prior art solution is too single.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A soil loosening and root promoting agent that does not require deep tillage is prepared from the following components in parts by mass: 2-4 parts of polyacrylamide, 6-13 parts of humic acid, 4-10 parts of microbial agents, 15-25 parts of zeolite, 10-20 parts of diatomaceous earth, 13-24 parts of organic fertilizer, 5-8 parts of biostimulant, 1-5 parts of trace element complex, and 1-3 parts of dispersant.

[0008] In a further embodiment, the polyacrylamide is modified polyacrylamide.

[0009] In a further embodiment, the modified polyacrylamide is prepared by forming a copolymer of polyacrylamide and polyacrylic acid under the action of a free radical initiator.

[0010] A method for preparing a soil loosening and root promoting agent without deep tillage, comprising: S1, adding water and humic acid to polyacrylamide, and continuously stirring to form a colloidal mixture;

[0011] S2, pouring zeolite into the colloidal mixture and stirring it by a stirrer so that the colloid adheres to the surface of the zeolite to form a zeolite colloidal mixture;

[0012] S3, taking out the zeolite and pouring it into a new mixer, adding diatomaceous earth and stirring, and then adding an additive into the mixer so that the diatomaceous earth and zeolite on the surface fully absorb the additive, wherein the additive includes at least one of trace elements, plant hormones, and microbial agents;

[0013] S4. Add organic fertilizer and stir to obtain a soil loosening and root promoting agent.

[0014] In a further embodiment, the water in S1 can be replaced by an ice-water mixture.

[0015] In a further embodiment, the zeolite in S2 is divided into two batches according to certain particle size requirements and added into the stirring device in batches.

[0016] In a further embodiment, the zeolite in S2 is divided into two batches according to certain particle size requirements and added into the stirring device in batches;

[0017] And / or, the zeolite is screened and divided into two batches using a sieve with an aperture of 10-30 meshes, the large-particle zeolite remaining on the sieve is first mixed and stirred with the colloid so that the surface of the large-particle zeolite is coated with the colloid, and the small-particle zeolite passing through the sieve is continuously added thereto, and finally mixed solid particles with large zeolite inside and small zeolite outside are formed.

[0018] In a further embodiment, the diatomaceous earth in S3 is divided into two batches according to certain particle size requirements, and added into the stirring device in batches;

[0019] And / or, the diatomaceous earth is screened and divided into two batches by a sieve, wherein the aperture of the sieve is 100-200 meshes, and the large-particle diatomaceous earth and zeolite colloid mixture remaining on the sieve is firstly placed so that the surface of the zeolite colloid mixture is coated with the large-particle diatomaceous earth, and the small-particle diatomaceous earth passing through the sieve is continuously added inwardly, and finally a solid mixture is formed in which the outer layer of the zeolite colloid mixture is coated with the large-particle diatomaceous earth occupying the main area and the small-particle diatomaceous earth occupying the secondary area.

[0020] In a further embodiment, the speed of the stirrer in S2 is reduced from 200-250 r / min during the first addition to 150-200 r / min during the second addition.

[0021] In a further embodiment, the diatomaceous earth in S3 is screened through a 100-200 mesh sieve, and the diatomaceous earth remaining on the sieve is first added to the stirring device, and the diatomaceous earth passing through the sieve is added to the stirring device later.

[0022] In a further embodiment, the speed of the stirrer in S3 is reduced from 100-150 r / min during the first addition to 60-90 r / min during the second addition.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention modifies polyacrylamide by introducing polyacrylic acid for copolymerization, thereby introducing a carboxyl group for adjusting the pH value of the entire soil. At the same time, the carboxyl group has good hydrophilicity and can be better integrated into water, so that it is easier to adhere to the surface of diatomaceous earth and zeolite to form a more tightly wrapped state.

[0025] 2. The present invention screens zeolite and diatomaceous earth at least twice. Through multiple screenings, large particles of diatomaceous earth are first combined with zeolite, and then small particles of diatomaceous earth are filled into positions not filled by large particles, thereby forming a comprehensive wrapping effect.

[0026] For the screening of zeolite, small-particle zeolite and large-particle zeolite are combined with each other to form a larger particle structure, which increases the surface area of ​​the zeolite group to allow more diatomaceous earth and zeolite to form a larger particle structure. When pre-buried in the soil, the overall soil gap can be increased. The structure of diatomaceous earth and zeolite effectively balances moisture retention and air permeability, thereby improving the promotion effect of the entire root system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a line graph of root length and time of wheat grown by using the root promoting agent of the present invention. DETAILED DESCRIPTION

[0028] Example 1: In the embodiment of the present invention, a soil loosening and root promoting agent without deep tillage is prepared from the following components by weight: 3 parts of polyacrylamide, 10 parts of humic acid, 8 parts of microbial agent, 20 parts of zeolite, 15 parts of diatomaceous earth, 20 parts of organic fertilizer, 7 parts of biostimulant, 3 parts of trace element complex, and 2 parts of dispersant;

[0029] S1, adding water and humic acid to polyacrylamide, and continuously stirring to form a colloidal mixture;

[0030] S2, pouring zeolite into the colloidal mixture and stirring it by a stirrer so that the colloid adheres to the surface of the zeolite to form a zeolite colloidal mixture;

[0031] S3, taking out the zeolite and pouring it into a new mixer, adding diatomaceous earth and stirring, and then adding an additive into the mixer so that the diatomaceous earth and zeolite on the surface fully absorb the additive, wherein the additive includes at least one of trace elements, plant hormones, and microbial agents;

[0032] S4. Add organic fertilizer and stir to obtain a soil loosening and root promoting agent.

[0033] The speed of the mixer in S2 is reduced from 200-250r / min during the first addition to 150-200r / min during the second addition, and the stirring time each time shall not be less than 5 minutes.

[0034] The speed of the mixer in S3 is reduced from 100-150 r / min during the first addition to 60-90 r / min during the second addition, and the stirring time each time shall not be less than 5 minutes.

[0035] By reducing the stirring speed, the frictional heat between the stirring blade and the material can be effectively reduced, the viscosity of the polyacrylamide can be avoided from being reduced, and the stability of the zeolite and diatomaceous earth mixture can be improved.

[0036] Organic fertilizers can be various common fertilizers such as animal manure (cow dung, chicken manure), plant-based organic fertilizers (rice straw, wheat straw, corn straw), etc.

[0037] Example 2: The difference from Example 1 is that before adding diatomaceous earth, the diatomaceous earth is first screened with 200 mesh, and the material remaining on the screen is material 1, and the material falling off the screen is material 2. Material 1 is first thrown into the mixer and mixed with the zeolite. Since the particles of material 1 are relatively large, a large particle structure will be formed on the surface of the zeolite. After material 1 is fully adhered, material 2 is added, so that material 2 adheres to other parts of the zeolite and is stirred, so that the aggregate formed by the entire zeolite and diatomaceous earth is larger.

[0038] Example 3: The difference from Example 1 is that before adding zeolite, the zeolite is first screened with 10 mesh, and the material remaining on the screen is material 1, and the material falling off the screen is material 2. The zeolite of material 1 is poured into a blender and mixed with a colloid. After sufficient stirring, material 2 is put into the blender to form a plurality of zeolite mixed mixture particles, and the surface of each zeolite mixed particle is attached with a colloid.

[0039] Example 4: The difference from Example 1 is that polyacrylamide is modified by forming a copolymer of "polyacrylamide" and "polyacrylic acid" under the action of a free radical initiator. The following is the reaction chemical formula of the copolymerization of polyacrylamide and polyacrylic acid:

[0040] nCH2=CHCONH2+mCH2=COOH→(-CH2-CHCONH2-CH2-COOH) n+m

[0041] Then, the modified polyacrylamide, humic acid and water are fully mixed.

[0042] Example 5: The difference from Example 1 is that the modified polyacrylamide, humic acid and water are fully mixed, and the diatomaceous earth is screened with 200 mesh and then added in batches.

[0043] Example 6: The difference from Example 1 is that the modified polyacrylamide, humic acid and water are fully mixed, and the zeolite is screened to 10 mesh before being added in batches.

[0044] Example 7: The difference from Example 1 is that the zeolite is screened with 10 mesh and then added in batches, while the diatomaceous earth is directly screened with 200 mesh and then added in batches.

[0045] Example 8: The difference from Example 1 is that the modified polyacrylamide, humic acid and water are fully mixed, the zeolite is screened with 10 mesh and then added in batches, while the diatomaceous earth is directly screened with 200 mesh and then added in batches, and the water is replaced with an ice-water mixture.

[0046] The ice-water mixture can reduce the problem of the entire polyacrylamide solution and increase the viscosity of the polyacrylamide in the liquid state.

[0047] Example 9: The difference from Example 1 is that a soil loosening and root promoting agent that does not require deep tillage is prepared from the following components in parts by mass: 4 parts of polyacrylamide, 13 parts of humic acid, 8 parts of microbial agents, 23 parts of zeolite, 16 parts of diatomaceous earth, 18 parts of organic fertilizer, 6 parts of biostimulants, 4 parts of trace element complex, and 2 parts of dispersant.

[0048] Example 10: The difference from Example 1 is that a soil loosening and root promoting agent that does not require deep tillage is prepared from the following components in parts by mass: 3 parts of polyacrylamide, 12 parts of humic acid, 9 parts of microbial agents, 21 parts of zeolite, 21 parts of diatomaceous earth, 14 parts of organic fertilizer, 6 parts of biostimulants, 5 parts of trace element complex, and 2 parts of dispersant.

[0049] The modified polyacrylamide, humic acid and water are fully mixed, the zeolite is screened with 10 mesh and then added in batches, and the diatomaceous earth is directly screened with 200 mesh and then added in batches.

[0050] 2-4 parts of polyacrylamide, 6-13 parts of humic acid, 4-10 parts of microbial agent, 15-25 parts of zeolite, 10-20 parts of diatomaceous earth, 13-24 parts of organic fertilizer, 5-8 parts of biostimulant, 1-5 parts of trace element complex, and 1-3 parts of dispersant.

[0051] Comparative Example 1:

[0052] The invention is prepared by the following components in parts by weight: 8 parts of polyacrylamide, 5 parts of microbial agent, 21 parts of organic fertilizer, 12 parts of biological hormone, 5 parts of trace element complex, and 1 part of dispersant;

[0053] Polyacrylamide and organic fertilizer are mixed with each other through stirring equipment, and microbial agents, biostimulants, trace element complexes and dispersants are continuously added during the stirring process to prepare the final soil loosening and root promoting agent.

[0054] Comparative Example 2: The difference from Comparative Example 1 is that it is prepared by including the following components in parts by weight: 8 parts of polyacrylamide, 5 parts of microbial agent, 21 parts of organic fertilizer, 12 parts of biological hormone, 5 parts of trace element complex, and 1 part of dispersant.

[0055] Comparative Example 3: The difference from Comparative Example 1 is that it is prepared by including the following components in parts by weight: 3 parts of polyacrylamide, 8 parts of microbial agent, 25 parts of organic fertilizer, 8 parts of biological hormone, 4 parts of trace element complex, and 4 parts of dispersant.

[0056] Combination Figure 1 As can be seen from the icons in the figure, combining the screened and modified polyacrylamide is the formula that best promotes plant root growth in the present invention.

[0057] Figure 1 The ranges of Examples 1 to 7, Examples 9 to 10 and Comparative Examples 1 to 3 are very different in actual situations. Therefore, the average value of the curves of Examples 1 to 7, Examples 9 to 10 and Comparative Examples 1 to 3 is taken and integrated into the same line that can represent the discount of the overall data, which is used to highlight the advantages of Example 8 in the present invention.

[0058] <![CDATA[Soil bulk density g / cm 3 > Example 1 <![CDATA[1.25g / cm 3 ]]> Example 2 <![CDATA[1.29g / cm 3 ]]> Example 3 <![CDATA[1.31g / cm 3 ]]> Example 4 <![CDATA[1.25g / cm 3 ]]> Example 5 <![CDATA[1.36g / cm 3 ]]> Example 6 <![CDATA[1.37g / cm 3 ]]> Example 7 <![CDATA[1.41g / cm 3 ]]> Example 8 <![CDATA[1.43g / cm 3 ]]> Example 9 <![CDATA[1.33g / cm 3 ]]> Example 10 <![CDATA[1.44g / cm 3 ]]> Comparative Example 1 <![CDATA[1.23g / cm 3 ]]> Comparative Example 2 <![CDATA[1.22g / cm 3 ]]> Comparative Example 3 <![CDATA[1.24g / cm 3 ]]>

[0059] The above is a comparison table of the bulk density of soil after the embodiments of the present invention and the comparative examples act on the soil.

[0060] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0061] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A soil loosening and root promoting agent without deep tillage, characterized in that: The invention is prepared from the following components in parts by weight: 2-4 parts of polyacrylamide, 6-13 parts of humic acid, 4-10 parts of microbial agent, 15-25 parts of zeolite, 10-20 parts of diatomaceous earth, 13-24 parts of organic fertilizer, 5-8 parts of biostimulant, 1-5 parts of trace element complex and 1-3 parts of dispersant.

2. The soil loosening and root promoting agent without deep tillage according to claim 1, characterized in that: Polyacrylamide is modified polyacrylamide.

3. The soil loosening and root promoting agent without deep tillage according to claim 1, characterized in that: Modified polyacrylamide is prepared by forming a copolymer of polyacrylamide and polyacrylic acid under the action of a free radical initiator.

4. A method for preparing a soil loosening and root promoting agent without deep tillage, characterized in that: For preparing the deep tillage-free soil loosening and root-promoting agent as claimed in any one of claims 1 to 3, the preparation method comprises the following steps; S1, adding water and humic acid to polyacrylamide, and continuously stirring to form a colloidal mixture; S2, pouring zeolite into the colloidal mixture and stirring it by a stirrer so that the colloid adheres to the surface of the zeolite to form a zeolite colloidal mixture; S3, taking out the zeolite and pouring it into a new mixer, adding diatomaceous earth and stirring, and then adding an additive into the mixer so that the diatomaceous earth and zeolite on the surface fully absorb the additive, wherein the additive includes at least one of trace elements, plant hormones, and microbial agents; S4. Add organic fertilizer and stir to obtain a soil loosening and root promoting agent.

5. The method for preparing a soil loosening and root promoting agent without deep tillage according to claim 4, characterized in that: The water in S1 can be replaced by an ice-water mixture.

6. The method for preparing a soil loosening and root promoting agent without deep tillage according to claim 4, characterized in that: The zeolite in S2 is divided into two batches according to certain particle size requirements and added into the stirring device in batches; And / or, the zeolite is screened and divided into two batches using a sieve with an aperture of 10-30 meshes, the large-particle zeolite remaining on the sieve is first mixed and stirred with the colloid so that the surface of the large-particle zeolite is coated with the colloid, and the small-particle zeolite passing through the sieve is continuously added thereto, and finally mixed solid particles with large zeolite inside and small zeolite outside are formed.

7. The method for preparing a soil loosening and root promoting agent without deep tillage according to claim 5, characterized in that: The diatomaceous earth in S3 is divided into two batches according to certain particle size requirements, and added into the stirring equipment in batches; And / or, the diatomaceous earth is screened and divided into two batches by a sieve, wherein the aperture of the sieve is 100-200 meshes, and the large-particle diatomaceous earth and zeolite colloid mixture remaining on the sieve is firstly placed so that the surface of the zeolite colloid mixture is coated with the large-particle diatomaceous earth, and the small-particle diatomaceous earth passing through the sieve is continuously added inwardly, and finally a solid mixture is formed in which the outer layer of the zeolite colloid mixture is coated with the large-particle diatomaceous earth occupying the main area and the small-particle diatomaceous earth occupying the secondary area.

8. The method for preparing a soil loosening and root promoting agent without deep tillage according to claim 6, characterized in that: The speed of the mixer in S2 was reduced from 200-250 r / min during the first addition to 150-200 r / min during the second addition.

9. The method for preparing a soil loosening and root promoting agent without deep tillage according to claim 5, characterized in that: The diatomaceous earth in S3 is screened through a 100-200 mesh sieve, and the diatomaceous earth remaining on the sieve is added to the stirring device first, and the diatomaceous earth passing through the sieve is added to the stirring device later.

10. The method for preparing a soil loosening and root promoting agent without deep tillage according to claim 9, characterized in that: The speed of the mixer in S3 was reduced from 100-150 r / min during the first addition to 60-90 r / min during the second addition.

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