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Regulator capable of improving the soil oxidation ability to methane and its preparing method and use

A conditioner, methane technology, applied in the field of regulators and preparations to promote the ability of soil methane oxidation, can solve the problems of reduced methane oxidation activity, affecting crop yield, weakening soil capacity, etc., to improve methane oxidation capacity, soil methane oxidation capacity The effect of increasing and easy-to-master technology

Inactive Publication Date: 2005-06-22
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially the use of various types of nitrogen fertilizers, due to the competition between ammonium ions and methane for the substrate binding site of methane oxidase, the methane oxidation activity of methanotrophs is greatly reduced, so the use of nitrogen fertilizers will seriously weaken the ability of soil as a methane sink
However, reducing the amount of fertilizer is not conducive to agricultural production and affects the yield of crops

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The combined use of PAM and ammonium nitrogen fertilizer as a regulator can greatly improve the ability of soil to oxidize methane. Specifically: 0.1% PAM solution with an anionic molecular weight of 3 to 4 million is combined with ammonium bicarbonate nitrogen fertilizer, sprayed or deeply applied to the soil. The following is its preparation and implementation process in the laboratory:

[0019] 1) Prepare 0.1% PAM solution

[0020] Use 10 grams of PAM powder (produced by the Sixth Chemical Factory of Fushun City, Liaoning Province. Anionic type, molecular weight 3 to 4 million), slowly pour it into 10 kg of water without heating, and stir while pouring to accelerate the dissolution of the PAM solid. After it is completely dissolved, put it into a brown glass reagent bottle and seal it for use;

[0021] 2) Preparation of NH 4 HCO 3 -PAM mixed solution

[0022] Add 10 grams of ammonium bicarbonate to 1000 ml of the above PAM solution, slowly add and stir to accele...

Embodiment 2

[0031] The difference from Example 1 is:

[0032] Use 10 grams of PAM powder, slowly pour it into 10kg of water without heating, and stir while pouring to accelerate the dissolution of PAM solid. After it is completely dissolved, put it into a brown glass reagent bottle and seal it for use; then add 35 grams of NH 4 Add Cl to 2500 ml of the above-mentioned PAM solution, slowly add and stir to accelerate its dissolution. After the ammonium bicarbonate is completely dissolved, put it into a brown glass reagent bottle and seal it for use. Take Daejeon as an example below:

Embodiment 350

[0033] After sowing, it is mixed with fertilizer and applied deeply in the soil, and the consumption does not vary with the kind of fertilizer, 350~700 grams / mu (350 grams / mu in the present embodiment);

[0034] The observation results of the methane flux in the field show that the methane emission flux of the soil using the mixed solution of the present invention is reduced by 30-80% compared with that of the soil without treatment.

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PUM

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Abstract

The invention relates to a regulator capable of improving the soil oxidation ability to methane and its preparing method and application, wherein the preparation comprises preparing PAM liquor, charging ammonium state nitrogen fertilizer into the PAM liquor, calculated on the basis of weight portion, the regulator comprises 500-2500 parts of 0.1% anionic ammonium polyacryloyl with a molecular weight of 3-4 million, and 10-100 parts of ammonium state nitrogen fertilizer, the regulator is applied by the amount of 350-700g / mu after sowing. The invention can be applied for increasing methane oxidizing ability for the soil by 50-210%.

Description

technical field [0001] The invention relates to soil improvement technology, in particular to a conditioner capable of promoting the ability of soil to oxidize methane, a preparation method and application. Background technique [0002] Methane is an important greenhouse gas, and the relative warming potential (GWP) of methane is that of CO 2 23 times that of global warming. The concentration of methane in the atmosphere has been on the rise in recent years. Soil methane oxidation is the result of the action of methane-oxidizing microorganisms in the soil, that is, the soil consumes methane in the atmosphere through the oxidation of methane by methane-oxidizing microorganisms in the soil, which is a very important methane sink. Agricultural measures such as fertilization system, tillage system, use of soil water retaining agent and structure improver will affect the activity of soil methane oxidizing microorganisms, thus affecting the microbial oxidation of methane. Espec...

Claims

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Application Information

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IPC IPC(8): C09K17/40
Inventor 史奕梁战备陈欣
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI