Soil conditioner and preparation method and application thereof

The technology of soil conditioner and oxidant is applied in the field of vegetable continuous cropping soil conditioner, and achieves the effects of simple preparation method, avoiding poison and good ecological environment protection.

Active Publication Date: 2020-10-16
INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no reports on the relevant research and application of peroxides in continuous cropping soil improvement.

Method used

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  • Soil conditioner and preparation method and application thereof
  • Soil conditioner and preparation method and application thereof
  • Soil conditioner and preparation method and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0037] 2) Preparation of oxidant particles

[0038] According to the proportion, fully mix the oxidant powder and the binder solution A evenly to obtain a lumpy oxidant with a certain toughness, and then put it into an extrusion granulator to make small oxidant particles with a diameter of 2-3mm.

[0039] 3) Preparation of composite particles

[0040] The peroxidant granules prepared in step 2) are put into a stainless steel coating machine, the disc speed of the coating machine is controlled at 30-60r / min, and the inclination angle is controlled at 45-65°. Put the mixed powder of biochar and iron-containing inorganic matter in step 1) into the disc of the stainless steel coating machine at an average speed of 10-40g / min through a vibrating feeder. The solution B containing the binder is sprayed on the rotating peroxide particles through a water mist spray gun, so that the mixed powder of biomass charcoal-iron-containing inorganic matter forms a coating on the surface of the ...

Embodiment 1

[0047] (1) Ingredients

[0048] The soil conditioner component of this embodiment includes peanut shell biochar, ferric oxide, kaolin and calcium peroxide. Peanut shell biochar was obtained by pyrolyzing peanut shells at 600 °C for 2 h, crushed and passed through a 100-mesh sieve. Ferroferric oxide is a kind of iron-containing inorganic substance, crushed and passed through a 100-mesh sieve. Kaolin as a binder. Calcium peroxide is used as an oxidizing agent, crushed and passed through a 100-mesh sieve.

[0049] Weigh 75g of peanut shell biochar and 7.5g of ferric oxide that have passed through a 100-mesh sieve, and mix well for later use. Fully disperse 2.5g of kaolin in 65mL of deionized water to prepare a 3.85wt.% binder solution. Divide the binder solution into two parts, A and B, where part A is 10mL and part B is 55mL.

[0050] (2) Preparation of peroxide particles

[0051] Fully mix 15.0g of calcium peroxide powder and binder solution A to obtain agglomerated calci...

Embodiment 2

[0063] (1) Ingredients

[0064] The components of the soil conditioner in this embodiment include corn stalk biochar, iron oxyhydroxide, carboxymethyl cellulose and magnesium peroxide. Corn stalk biochar was obtained by pyrolysis of corn stalk at 550 °C for 2.5 h, crushed and passed through a 100-mesh sieve. Ferric oxyhydroxide is a kind of iron-containing inorganic substance, crushed and passed through a 100-mesh sieve. Carboxymethyl cellulose as a binder. Magnesium peroxide is used as an oxidizing agent, crushed and passed through a 100-mesh sieve.

[0065] Weigh 80 g of corn stalk biochar and 6.0 g of iron oxyhydroxide that have passed through a 100-mesh sieve, and mix well for later use. Fully disperse 2.0 g of carboxymethyl cellulose in 86 mL of deionized water to prepare a 2.33 wt.% binder solution. Divide the binder solution into two parts, A and B, wherein part A is 75.5mL and part B is 10.5mL.

[0066](2) Preparation of peroxide particles

[0067] Fully mix 12.0...

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Abstract

The invention discloses a soil conditioner as well as preparation and application thereof. The soil conditioner is prepared from biomass charcoal, an oxidizing agent, an iron-containing inorganic matter and a binder in proportion through the steps of burdening, oxidizing agent particle preparation, biomass charcoal-iron-containing inorganic matter wrapping, drying and the like. The soil conditioner can effectively remove allelochemicals in continuous cropping soil, improve the physical and chemical properties of the soil, regulate and control the microbial structure of the soil, reduce soil-borne diseases, improve the yield and quality of vegetable crops such as tomatoes and cucumbers, and provide effective technical support for sustainable development of green agriculture.

Description

technical field [0001] The invention belongs to the technical field of agricultural ecology and soil improvement, and relates to soil improvement, in particular to a vegetable continuous cropping soil improver. The invention also provides the preparation method and application of the soil conditioner. Background technique [0002] Continuous cropping obstacle refers to the phenomenon that after the same or related crops are continuously planted in the same field, even if normal cultivation and management measures are adopted, the phenomenon of poor plant growth and development, decreased yield, and poor quality will occur. In recent years, with the continuous development of agricultural industrialization and scale, the obstacles to continuous cropping in some cultivated areas have become increasingly prominent. At present, the land area with high degree of hazard of continuous cropping obstacles in my country accounts for more than 10% of the total cultivated land area, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/06C09K17/40C09K101/00
CPCC09K17/06C09K17/40C09K2101/00
Inventor 涂玉婷黄继川彭智平吴雪娜廖伟杰
Owner INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI
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