A kind of soil conditioner for acidification of praecox and praecox planting method

Abstract

The present invention relates to a thunbergii bamboo acidified soil conditioner and a thunbergii bamboo planting method, wherein the thunbergii bamboo acidified soil conditioner comprises the following components by mass: 20-40 parts of zeolite, 10-30 parts of fermented cow dung, 5-10 parts of inorganic salts, 10-20 parts of modified calcium hydroxide, 1-10 parts of nutrients, and 1-10 parts of auxiliary agents; wherein the modified calcium hydroxide is acrylic acid, fatty alcohol polyether, and acrylamide modified calcium hydroxide. The present invention can not only improve soil structure and control soil acidification problems, but also has the functions of regulating plant growth and promoting crop yield and income increase, has good improvement and promotion effects on thunbergii bamboo planting, solves the problems existing in the prior art, and is of great significance to the development of agricultural economy.

Description

Technical Field

[0001] The invention relates to the technical field of agriculture, and in particular to an acidified soil conditioner for Phyllostachys praecox and a method for planting Phyllostachys praecox. Background Art

[0002] Lei bamboo is a popular green vegetable with high protein content and low crude fiber content. This type of plant also has a well-developed root system and can maintain water and soil, so Lei bamboo cultivation has a large market scale. However, during the Lei bamboo cultivation process, due to intensive management, excessive fertilization, and decomposition of mulch, soil acidification has occurred. In Lei bamboo forests that have been planted for more than 10 years, the pH of the surface soil may even drop to 4.0, and there is a tendency to deepen, which has serious impacts on the environment and economy.

[0003] Acidifying soil conditioner is an improved product designed specifically for balancing acidic soils. Its purpose is to optimize soil microecology, enhance soil fertility, and thus increase crop yields. The core components of soil conditioners include calcareous materials, boric mud, and alkaline organic fertilizers, which can effectively alleviate soil acidification problems, increase pH levels, and supplement key nutrients such as calcium and magnesium that are missing from the soil. After applying acidifying soil conditioners, soil compactness decreases, porosity increases, structure is improved, air permeability and water retention are improved, and crops can absorb water and nutrients more effectively. In addition, it can also have a positive impact on soil biodiversity, help prevent and control pests and diseases, and optimize crop growth conditions.

[0004] Most of the existing soil conditioner products directly mix alkaline soil, wood ash, inorganic salts, growth regulators and other nutrients, and apply them to the surface of acidified soil. However, there are still some shortcomings, such as unsatisfactory conditioning effect, soil calcification, and difficulty in achieving healthy and sustainable use of soil. For certain plants, there may be problems such as imbalance of nutrient elements, difficulty in absorbing nutrients, and failure to meet the nutritional needs of the crop growth cycle. They cannot meet the application needs of the treatment of acidified soil of Phyllostachys praecox and Phyllostachys praecox planting. How to overcome and solve the problems that the existing acidified soil conditioners have limited effects in improving soil pH and have no obvious effect on promoting crop growth and development, and ensure the sustainable development of agricultural production, is a major challenge facing the current agricultural science research field.

[0005] In summary, it is urgent to develop a new technical solution to solve the defects in the existing technology. Summary of the invention

[0006] Based on this, the present invention provides a soil conditioner for acidification of Phyllostachys praecox and a method for planting Phyllostachys praecox. The present invention adopts zeolite, fermented cow dung, inorganic salts, modified calcium hydroxide, nutrients, additives and other ingredients to compound to obtain a soil conditioner, wherein the modified calcium hydroxide has a special structure, and segments such as fatty alcohol polyether and acrylamide are coated on its surface, which can form a synergistic and complementary effect after compounding with other materials. The acidification soil conditioner for Phyllostachys praecox and the method for planting Phyllostachys praecox provided by the inventor can accurately and efficiently neutralize the pH value of the soil and enhance the fertility of the soil. While improving the soil structure and treating the problem of soil acidification, it also has the function of regulating plant growth and promoting the increase of crop yield and income. It has a good improvement and promotion effect on the planting of Phyllostachys praecox, solves the problems existing in the prior art, and is of great significance to the development of the agricultural economy.

[0007] The object of the present invention is to provide a soil conditioner acidified with thunbergia praecox, wherein the soil conditioner acidified with thunbergia praecox comprises the following components in parts by weight:

[0008] Zeolite 20-40 parts

[0009] 10-30 servings of fermented cow dung

[0010] 5-10 parts of inorganic salt

[0011] Modified calcium hydroxide 10-20 parts

[0012] 1-3 servings of nutrients

[0013] 1-10 parts of additives;

[0014] in,

[0015] The modified calcium hydroxide is acrylic acid, fatty alcohol polyether and acrylamide modified calcium hydroxide.

[0016] Furthermore, the preparation method of the modified calcium hydroxide comprises the following steps:

[0017] S1, mixing acrylic acid, fatty alcohol polyether, a catalyst and a polymerization inhibitor, and heating in vacuum to react to obtain an intermediate product;

[0018] S2, mixing the intermediate product, acrylamide, calcium hydroxide and an initiator, and heating them for reaction under the protection of an inert gas to obtain modified calcium hydroxide.

[0019] Furthermore, in step S1, the heating reaction is carried out at a temperature of 60-100°C and for a time of 5-10 h.

[0020] Furthermore, in step S1, the mass ratio of acrylic acid to fatty alcohol polyether is (3-6):(25-30).

[0021] Furthermore, the fatty alcohol polyether is AEO9.

[0022] Furthermore, in step S2, the heating reaction temperature is 50-90° C. and the time is 1-4 h.

[0023] Furthermore, in step S2, the mass ratio of the intermediate product, acrylamide and calcium hydroxide is (1-2):(5-10):(5-10).

[0024] Furthermore, the inorganic salt is selected from one or more of ammonium salts, phosphates, calcium salts, potassium salts, magnesium salts, and iron salts.

[0025] Furthermore, the nutrients are selected from one or more of amino acids, polysaccharides, urea, enzymes, and growth hormones.

[0026] Furthermore, the auxin is selected from one or more of indoleacetic acid, indolebutyric acid, naphthylacetic acid, gibberellin, and humic acid.

[0027] Furthermore, the auxiliary agent is selected from one or more of a dispersant, a stabilizer, an emulsifier, an antioxidant, and a solvent.

[0028] Another object of the present invention is to provide the use of the above-mentioned phyllostachys praecox acidified soil conditioner in a phyllostachys praecox planting method, wherein the phyllostachys praecox planting method comprises the following steps:

[0029] On the surface of acidified soil of Phyllostachys thunbergii, the concentration of 100-300 g / m 2 Apply acidified soil conditioner for thunbergia praecox, plant strong thunbergia praecox in spring, then apply fertilizer, and harvest thunbergia praecox shoots after 0.5-1.5 years of growth.

[0030] The present invention has the following beneficial effects:

[0031] The present invention adopts zeolite, fermented cow dung, inorganic salt, modified calcium hydroxide and nutrients as a soil conditioner for the acidification of thunbergii. The modified calcium hydroxide is obtained by further polymerizing the reaction product of acrylic acid and fatty alcohol polyether with acrylamide, and then grafting the amino group therein with the hydroxyl group on the surface of calcium hydroxide. The surface of the modified calcium hydroxide is wrapped with a polymer segment, which is not only conducive to improving the stability and dispersibility of calcium hydroxide, but also has better affinity and stability when compounded with alkaline zeolite and fermented cow dung rich in organic matter, and can improve the pH of acidified soil for a long time and lastingly, fully improve the soil structure, increase air permeability and water permeability, so that the soil can be used healthily and continuously; at the same time, it can also avoid the influence of calcium hydroxide on the activity of nutrients such as humic acid, thereby improving the soil nutrient retention capacity, avoiding the reduction of nutrient content such as nitrogen and phosphorus, thereby promoting the absorption of multiple nutrients by thunbergii, quickly supplementing nutrient vacancies, ensuring the normal metabolism of the plant, and improving the growth rate of rhizomes, branches and leaves, achieving increased production and income while controlling the acidification of thunbergii soil phenomenon, and having good application prospects. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the technical solution of the present invention, the following examples are listed. Unless otherwise stated, the raw materials, reactions and post-treatment methods shown in the examples are common raw materials on the market and technical methods well known to those skilled in the art.

[0033] The words "preferred", "preferably", "more preferably", etc. in the present invention refer to embodiments of the present invention that can provide certain beneficial effects in certain circumstances. However, other embodiments may also be preferred under the same circumstances or other circumstances. In addition, the description of one or more preferred embodiments does not imply that other embodiments are not applicable, nor is it intended to exclude other embodiments from the scope of the present invention.

[0034] It should be understood that, except in any operating examples, or where otherwise indicated, all numbers indicating, for example, the amounts of ingredients used in the specification and claims should be understood to be modified in all cases by the term "about". Therefore, unless indicated to the contrary, the numerical parameters set forth in the following specification and the appended claims are approximate values ​​that vary depending on the desired properties to be obtained by the present invention.

[0035] The fermented cow dung in the embodiment of the present invention was purchased from Shijiazhuang Woye Fertilizer Co., Ltd.

[0036] The inorganic salts in the embodiment of the present invention are potassium sulfate, calcium nitrate, magnesium sulfate, ferrous sulfate, ammonium phosphate and potassium dihydrogen phosphate in a mass ratio of 1:1:0.1:0.1:1:0.2.

[0037] The nutrients in the embodiment of the present invention are pectin polysaccharide, seaweed polysaccharide, chitosan and humic acid in a mass ratio of 1:0.5:0.4:0.1.

[0038] The auxiliary agent in the embodiment of the present invention is Tween 80.

[0039] The fatty alcohol polyether in the embodiment of the present invention is AEO9, which is purchased from BASF.

[0040] The preparation method of modified calcium hydroxide in the embodiment of the present invention comprises the following steps:

[0041] S1. Mix acrylic acid and fatty alcohol polyether, stir evenly, add p-toluenesulfonic acid and hydroquinone (acrylic acid: fatty alcohol polyether: p-toluenesulfonic acid: hydroquinone = 4.5:30:1.2:0.02, m / m / m / m), evacuate to 0.03 MPa, react at 90°C for 6 h, and then further increase the vacuum degree to remove excess acrylic acid to obtain an intermediate product;

[0042] S2. Using water as solvent, the intermediate product, acrylamide, calcium hydroxide and potassium persulfate in a mass ratio of 2:10:10:0.05 are mixed, reacted at 90° C. for 2 h under nitrogen protection, and the modified calcium hydroxide is obtained after filtering, washing and drying.

[0043] The "parts" in the embodiments of the present invention refer to parts by mass.

[0044] Example 1

[0045] A soil conditioner acidified with thunbergia praecox, comprising the following components in parts by weight:

[0046] Zeolite 20 parts

[0047] 10 servings of fermented cow dung

[0048] 5 parts of inorganic salt

[0049] 10 parts of modified calcium hydroxide

[0050] Nutritional content 1 serving

[0051] 1 part of additive.

[0052] Example 2

[0053] A soil conditioner acidified with thunbergia praecox, comprising the following components in parts by weight:

[0054] Zeolite 30 parts

[0055] 15 servings of fermented cow dung

[0056] 8 parts of inorganic salt

[0057] 15 parts of modified calcium hydroxide

[0058] 1.5 servings of nutrients

[0059] 2 parts of additives.

[0060] Example 3

[0061] A soil conditioner acidified with thunbergia praecox, comprising the following components in parts by weight:

[0062] Zeolite 40 parts

[0063] 25 servings of fermented cow dung

[0064] 10 parts of inorganic salt

[0065] 20 parts of modified calcium hydroxide

[0066] 2 servings of nutrients

[0067] 3 parts of additives.

[0068] Comparative Example 1

[0069] The difference between this comparative example and Example 1 is that the modified calcium hydroxide is replaced by a mixture obtained by blending unmodified calcium hydroxide and fatty alcohol polyether in a mass ratio of 10:2, and the other ingredients are the same as those in Example 1.

[0070] Comparative Example 2

[0071] The difference between this comparative example and Example 1 is that in the preparation method of modified calcium hydroxide, step S1 is deleted, no intermediate product is added in step S2, and the other components are the same as those in Example 1.

[0072] Application Example 1

[0073] A method for planting Phyllostachys praecox comprises the following steps:

[0074] On the surface of acidified soil of 20 m×20 m bamboo with pH of about 4.5, the concentration of 200 g / m 2 Apply the acidified soil conditioner of Phyllostachys praecox prepared in Example 1. Plant 1-2 year old robust Phyllostachys praecox with a diameter at breast height of 2-3 cm at a spacing of 3 m×3 m in March of the first year, apply 1 kg of fertilizer (nitrogen, phosphorus, potassium mass ratio of 5:2:3) to each plant once, and then no longer apply fertilizer, dig trenches in time to prevent water accumulation in the rainy season, water appropriately in drought, and weed in time, and harvest Phyllostachys praecox shoots in March of the following year.

[0075] Application Example 2-3

[0076] A method for planting Phyllostachys praecox is different from that of Application Example 1 in that the acidified soil conditioner of Phyllostachys praecox is replaced by the samples prepared in Examples 2 and 3, and other methods are the same as those of Application Example 1.

[0077] Comparative Application Example 1-2

[0078] The difference between this comparative application example and application example 1 is that the thunbergium acidified soil conditioner is replaced by the samples prepared in comparative examples 1 and 2, and the other methods are the same as those in application example 1.

[0079] Test Case

[0080] The number of bamboo shoots produced in the corresponding application examples and comparative application examples and the soil pH value after harvest were statistically analyzed.

[0081] The test results are shown in Table 1.

[0082] Table 1 Test results

[0083]

[0084] According to Table 1, it can be concluded that the acidified soil conditioner of Phyllostachys praecox according to the embodiment of the present invention can effectively improve the pH of the soil for a long time, regulate the health of the soil, achieve sustainable utilization, and alleviate environmental pressure. At the same time, it has a good promoting effect on the growth of Phyllostachys praecox, improves the growth efficiency of the plant, and can produce more bamboo shoots. However, the comparative example 1-2 in which the modified calcium hydroxide is replaced leads to reduced stability of the soil conditioner and insufficient synergistic effect between the components, and the repair of the soil and the growth promotion effect on Phyllostachys praecox are not ideal, and the technical effect is lower than that of the embodiment.

[0085] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0086] 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 conditioner acidified with thunbergia praecox, characterized in that: The thunbergium acidified soil conditioner comprises the following components in parts by mass: in, The modified calcium hydroxide is acrylic acid, fatty alcohol polyether and acrylamide modified calcium hydroxide; The preparation method of the modified calcium hydroxide comprises the following steps: S1, mixing acrylic acid, fatty alcohol polyether, a catalyst and a polymerization inhibitor, and heating in vacuum to react to obtain an intermediate product; S2, mixing the intermediate product, acrylamide, calcium hydroxide and an initiator, and heating them for reaction under the protection of an inert gas to obtain modified calcium hydroxide.

2. The soil conditioner of claim 1, characterized in that: In step S1, the heating reaction temperature is 60-100°C and the time is 5-10h.

3. The soil conditioner of claim 1, characterized in that: In step S1, the mass ratio of acrylic acid to fatty alcohol polyether is (3-6):(25-30).

4. The soil conditioner of claim 1, characterized in that: In step S2, the heating reaction temperature is 50-90°C and the time is 1-4h.

5. The soil conditioner of claim 1, characterized in that: In step S2, the mass ratio of the intermediate product, acrylamide and calcium hydroxide is (1-2):(5-10):(5-10).

6. The soil conditioner of claim 1, characterized in that: The inorganic salt is selected from one or more of ammonium salts, phosphates, calcium salts, potassium salts, magnesium salts, and iron salts.

7. The soil conditioner of claim 1, characterized in that: The nutrients are selected from one or more of amino acids, polysaccharides, urea, enzymes, and growth hormones.

8. The soil conditioner of claim 7, characterized in that: The auxin is selected from one or more of indoleacetic acid, indolebutyric acid, naphthylacetic acid, gibberellin, and humic acid.

9. Use of the acidified soil conditioner of Phyllostachys praecox according to any one of claims 1 to 8 in a method for planting Phyllostachys praecox, characterized in that: The method for planting praecox comprises the following steps: On the surface of acidified soil of Phyllostachys thunbergii, 100-300g / m 2 Apply acidified soil conditioner for thunbergia praecox, plant strong thunbergia praecox in spring, then apply fertilizer, and harvest thunbergia praecox shoots after 0.5-1.5 years of growth.

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