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Method for applying biochar and wood vinegar in rice field and application of biochar and wood vinegar in emission reduction of greenhouse gases in rice field

A technology of wood acetic acid and biochar, applied in the directions of fertilization method, application, fertilization device, etc.

Pending Publication Date: 2020-11-24
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are few reports on the application of WV applied to rice

Method used

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  • Method for applying biochar and wood vinegar in rice field and application of biochar and wood vinegar in emission reduction of greenhouse gases in rice field
  • Method for applying biochar and wood vinegar in rice field and application of biochar and wood vinegar in emission reduction of greenhouse gases in rice field
  • Method for applying biochar and wood vinegar in rice field and application of biochar and wood vinegar in emission reduction of greenhouse gases in rice field

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Embodiment Construction

[0027] The implementation of the present invention will be further described below in conjunction with the drawings and specific examples.

[0028] A method for applying biochar and wood acetic acid in paddy field, is characterized in that, comprises the steps:

[0029] 1) Before the rice is transplanted, apply biochar to the paddy field soil, and the biochar is fully mixed with the surface paddy field soil;

[0030] 2) before rice transplanting, apply basal fertilizer to paddy field soil, described basal fertilizer is made up of chemical fertilizer and wood acetic acid;

[0031] 3) After the rice is transplanted, apply tillering fertilizer and ear fertilizer to the paddy field soil at different times, and the tillering fertilizer and ear fertilizer are all composed of chemical fertilizer and wood acetic acid;

[0032] The time of applying biochar in step 1) is earlier than the time of applying base fertilizer in step 2).

[0033] In step 1), the paddy field soil on the surf...

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Abstract

The invention relates to a method for applying biochar and pyroligneous acid in a rice field and application of the biochar and pyroligneous acid in emission reduction of greenhouse gases in the ricefield, which comprises the following steps of: before transplanting rice, applying the biochar to rice field soil, and fully mixing the biochar with surface rice field soil; before rice transplanting,applying a base fertilizer to rice field soil, and the base fertilizer is composed of a chemical fertilizer and pyroligneous acid; after rice is transplanted, applying tillering fertilizer and ear fertilizer to rice field soil at different times, and the tillering fertilizer and the ear fertilizer are both composed of chemical fertilizer and pyroligneous acid; the time for applying the biochar isearlier than the time for applying the base fertilizer. Compared with the prior art, the beneficial effects provided by the invention has the advantages that rice yield increase and remarkable emission reduction of rice field greenhouse gases (N2O and CH4) are realized.

Description

technical field [0001] The invention relates to a method for applying biochar and wood acetic acid in paddy fields and its application in reducing greenhouse gas emission in paddy fields. Background technique [0002] Greenhouse gas emissions from farmland have a greater potential to affect global warming, and the non-CO emissions from rice fields 2 The impact of gas (GHG) emissions is particularly prominent. in CH 4 As an example, paddy soil emits CH 4 It accounts for about 30% of all agricultural soil emissions. It is estimated that China has about 138–154Gg N 2 O emissions. Therefore, reducing CH emissions from paddy soil 4 and N 2 O is significant. [0003] Biochar is a carbon-rich soil additive prepared by pyrolyzing biomass in an anoxic environment and at relatively low temperatures (below 700 °C). It can improve soil quality and fertility, thereby achieving the purpose of carbon sequestration. The development and application of biochar (including using bioch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/22A01C21/00C01B32/05C05D9/00C05G3/60
CPCA01G22/22A01C21/005C01B32/05C05D9/00C05G3/60C05B17/00C05C9/00C05D1/00C05F11/00
Inventor 冯彦房薛利红刘杨孙海军杨林章李德天
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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