Desertification soil improver as well as preparation method and application thereof

The technology of soil conditioner and bentonite is applied in the field of sandy soil conditioner and its preparation, which can solve the problems of complex production process of the conditioner, secondary environmental pollution, poor improvement effect, etc. The effect of fertilizing sandy soil

Inactive Publication Date: 2018-12-28
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Except for natural modifiers, the production process of other modifiers is relatively complicated, the cost is high, or they are chemical products, which are easy to cause secondary environmental pollution, and there are certain obstacles in the large-scale promotion and use.
In addition, the function of most soil improvers is relatively single, and can only be improved for a single obstacle soil. For obstacle soils such as sandy soil with loose soil particles, poor fertility, and serious water and fertilizer leakage, a single soil improver The improvement effect is poor

Method used

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  • Desertification soil improver as well as preparation method and application thereof
  • Desertification soil improver as well as preparation method and application thereof
  • Desertification soil improver as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1, prepare sandy soil conditioner

[0034] One, the preparation method of sandy soil conditioner, comprises the following steps:

[0035] The corn stalks are air-dried, the organic matter content in the air-dried corn stalks is calculated on a dry basis, the mass percentage is ≥ 40%, and the nitrogen, phosphorus and potassium nutrient content is ≥ 2%. Crush the air-dried corn stalks to fine particles ≤ 2mm to obtain straw granules; mix 60 parts of corn stalk granules with 1.0 part of urea first, then add 8 parts of vitamin B6 aqueous solution with a concentration of 500 mg / L, and then mix with 30 parts of Mix the bentonite and continue mixing, and finally add 0.3 parts of microbial agent, and process it into a granulated soil improver through a granulator, which is the sandy soil improver A of this embodiment. The urea can adjust the carbon-nitrogen ratio in the sandy soil improver to maintain between 15:1 and 20:1.

[0036] The above-mentioned microbial ba...

Embodiment 2

[0054] Embodiment 2, prepare sandy soil conditioner

[0055] One, the preparation method of sandy soil conditioner, comprises the following steps:

[0056] Air-dry the wheat straw after harvesting wheat, the organic matter content in the air-dried wheat straw is calculated on a dry basis, its mass percentage is ≥ 40%, and the nitrogen, phosphorus and potassium nutrient content is ≥ 2%. Crush the air-dried straw into fine particles ≤ 2mm to obtain straw particles; first mix 50 parts of straw particles with 0.5 part of urea, then add 8 parts of vitamin B6 aqueous solution with a concentration of 400mg / L, and then mix with 20 parts of bentonite to continue Mix evenly, and finally add 0.2 parts of microbial bacterial agent, and process it into a granulated soil conditioner through a granulator, which is the sandy soil conditioner B of this embodiment. The urea can adjust the carbon-nitrogen ratio in the sandy soil improver to maintain between 15:1 and 20:1.

[0057] The above-me...

Embodiment 3

[0067] Embodiment 3, prepare sandy soil conditioner

[0068] One, the preparation method of sandy soil conditioner, comprises the following steps:

[0069] The harvested rice straw is air-dried, and the organic matter content in the air-dried rice straw is calculated on a dry basis, the mass percentage is ≥ 40%, and the nitrogen, phosphorus and potassium nutrient content is ≥ 2%. Crush the air-dried rice straw into fine particles ≤ 2mm to obtain straw particles; mix 70 parts of rice straw particles with 1.5 parts of urea first, then add 9 parts of vitamin B6 aqueous solution with a concentration of 600mg / L, and then mix with 40 parts of Mix the bentonite and continue mixing, and finally add 0.5 part of microbial agent, and process it into a granulated soil improver by a granulator, which is the sandy soil improver C of this embodiment. The urea can adjust the carbon-nitrogen ratio in the sandy soil improver C to maintain between 15:1 and 20:1.

[0070] The above-mentioned mi...

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Abstract

The invention discloses a desertification soil improver as well as a preparation method and application thereof. The desertification soil improver disclosed by the invention is prepared from the following substances in parts by weight: 20-40 parts of bentonite, 50-70 parts of straw, 0.5-1.5 parts of urea, 0.2 part of a microbial agent and 8-9 parts of a vitamin B6 solution. On the basis that the straw and the bentonite are adopted as main raw materials, the vitamin B6, the urea and the microbial agent are compounded and processed into the granulized soil improver, granular structures of desertification soil are increased, soil can be fertilized, the water and fertilizer retention capability of the soil can be improved, in addition, plant growth can be promoted, vegetational cover of the desertification soil is improved, convenience can be brought to production and transportation, and effects of efficient utilization of agricultural wastes and desertification soil improvement and treatment can be achieved.

Description

technical field [0001] The invention relates to the field of soil improvement, in particular to a sandy soil improver and its preparation method and application. Background technique [0002] Soil desertification and desertification are one of the most serious environmental problems in the world. Currently, more than 30% of arid lands worldwide are affected by desertification, and the trend of land conversion to deserts is expanding to semi-arid lands. According to statistics, nearly 1.5 billion people in the world are directly threatened by desertification, and 12 million hm 2 The land turns into a desert. China is one of the countries most seriously affected by desertification in the world. As of 2014, the national desertification and sandy land area accounted for 45.13% of the total land area. Soil desertification and desertification not only destroy native vegetation, reduce biodiversity, and aggravate soil erosion, but also cause ecological dysfunction and ecological...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04A01B79/02C05G3/80
CPCA01B79/02C05C9/00C05G3/00C05G3/80C05G5/12C05D9/00C05F11/00C05F11/08C05F11/10
Inventor 李玉义孔凡磊刘晓林张晓丽
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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