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Improver suitable for acid soil and application method of improver

An acid soil and application method technology, applied in the fields of land preparation methods, soil conditioning materials, chemical instruments and methods, etc., can solve the problems of low nutrient availability, acidification of acid soil, etc., achieve long lasting effect period, reduce nitrogen and phosphorus loss , the effect of enhancing ventilation

Inactive Publication Date: 2017-06-27
上海天际生态农业有限公司
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a conditioner suitable for acidic soil and its application method in view of a series of problems such as serious acidification of acidic soil in southern my country and low nutrient availability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described below in conjunction with experimental examples.

[0018] Soil samples were collected from rape fields of more than 100 mu in Ziyang Town, Wuyuan County, Jiangxi Province. The measured pH was 4.01, the organic matter content was 2.13%, and the total nitrogen content was 0.13. The rapeseed field is divided into an experimental area and a control area, and the experimental area is evenly spread on the soil surface with biochar that absorbs biogas slurry, and the soil is plowed to a depth of 30 cm; the above steps are repeated twice; the moisture content of the soil is controlled Aged for 15 days at 20%-30%. In the control area, no biochar for absorbing biogas slurry was sprinkled, and only mechanical deep plowing was carried out.

[0019] Implementation effect: The results after 3 months of the test show that the pH value of the soil in the experimental area increased from 4.01 to 4.67, an increase of 0.66 units; the organi...

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Abstract

The invention provides an improvement agent suitable for acidic soil and its application method, which is characterized in that it comprises the following steps: evenly spreading biochar that absorbs biogas slurry on the surface of acidic soil, and then plowing the soil, the plowing depth is 30cm; repeat the above steps 2-3 times; control the moisture content of the soil at 20% to 30%, and age for 15 days. Because biochar is porous and strongly alkaline, and it works synergistically with alkaline biogas slurry, the invention can absorb aluminum ions, H+, and acid radical ions in the soil after implementation, and can directly neutralize the acidity or alleviate the acidification trend. Improving soil structure, enhancing soil aeration, improving soil water retention and fertilizer supply capacity, and reducing nitrogen and phosphorus loss are beneficial explorations for the development of green agriculture.

Description

technical field [0001] The invention relates to a method for improving soil, in particular to an improving agent suitable for acidic soil and its application method. Background technique [0002] Acidic soil is the general term for soil with a pH value less than 7. Including brick red soil, red soil, red soil, yellow soil and dry red soil and other soil types. In the tropical and subtropical regions of my country, acidic soils of various red or yellow soils are widely distributed. The local temperature is high and the rainfall is heavy, with the annual rainfall mostly above 1500mm. The characteristics of high temperature, rainy season, and hot and humid seasons make the weathering and pedogenesis of the soil very strong, and the cycle of biological matter is very rapid. The base is highly unsaturated, and the pH is generally 4.5-6. At the same time, iron and aluminum oxides are obviously accumulated, and the soil is acidic and thin. The acidic soil in my country is widel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/14A01B79/02
CPCC09K17/14A01B79/02C09K2101/00C09K2109/00
Inventor 郭燕辉李贺
Owner 上海天际生态农业有限公司
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