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Fertilization and irrigation method capable of achieving greenhouse organic vegetable field greenhouse gas emission reduction

A greenhouse gas and organic fertilizer technology, applied in the fields of agricultural technology and environmental protection, can solve problems such as soil pollution, achieve the effect of reducing emissions, reducing environmental pollution and resource waste, and has strong practicability

Active Publication Date: 2015-12-23
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are also some related studies on the reduction of farmland greenhouse gas emissions, such as the method and application of farmland greenhouse gas emission reduction disclosed in Chinese patent document CN103004543A (201210584476.5) and the farmland greenhouse gas emission reduction disclosed in Chinese patent document CN103688727A (201310700008.4) The method and its application are mainly aimed at the reduction of greenhouse gas emissions in the cultivation of rice, wheat, corn and other food crops; Chinese patent document CN104478583A (201410749236.5) Composition for reducing farmland greenhouse gas emissions and its application, Chinese patent document CN104429545A (201410764484.7) published A method for reducing farmland greenhouse gas emissions by a mixture of green onion and garlic and its application, and a kind of nitrogen content of dryland farmland soil disclosed in Chinese patent document CN101913967A (201010250584.X) 2 O emission reduction method, which tends to add exogenous substances to the soil to reduce greenhouse gas emissions, which is easy to pollute the soil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for fertilizing and irrigating greenhouse gas emission reduction in organic vegetable fields, comprising the following steps:

[0026] Before the organic vegetable field is plowed and planted, apply fermented biogas residue with an amount of pure nitrogen equivalent to 450kg / hm2 to the soil of the organic vegetable field to be treated according to the conventional fertilization amount, and perform the first irrigation after planting. 17% of the irrigation amount, the total irrigation amount is 353mm, and the remaining irrigation amount is divided into 6 times for irrigation.

[0027] Taking celery as an example to conduct N2O and yield experiments. Example 1 of the present invention is a treatment group and a control group: the amount of biogas residue applied after fermentation is 450kg / hm2, and it is uniformly applied at one time before planting; the total irrigation amount during the entire growth period is 426mm.

[0028] Farmland soil N 2 The emission of...

Embodiment 2

[0030] A method for fertilizing and irrigating greenhouse gas emission reduction in organic vegetable fields, comprising the following steps:

[0031] Before the organic vegetable field is plowed and planted, apply 300kg / / hm of fertilizer to the organic vegetable field soil of the facility to be treated according to the conventional fertilization amount 2 The total irrigation volume of the whole growth period is 426mm.

[0032] Take the planting of celery as an example for N 2 O and yield test. Example 2 of the present invention is a treatment group, and a control group: the amount of biogas residue applied after fermentation is 450kg / hm 2 , one-time uniform application before planting; the total irrigation volume throughout the growth period is 426mm.

[0033] Farmland soil N 2 The emission of O was measured by static box-gas chromatography. The gas samples in the box were collected from 9:30 to 10:30 in the morning, and the gas was collected once at 0, 20, 40, and 60 min...

Embodiment 3

[0035] A method for fertilizing and irrigating greenhouse gas emission reduction in organic vegetable fields, comprising the following steps:

[0036] Before the organic vegetable field is plowed and planted, apply 300kg / hm to the soil of the organic vegetable field in the facility to be treated according to the conventional fertilization amount 2 The fermented biogas dregs were irrigated for the first time after planting. The irrigation volume was 17% of the total irrigation volume, and the total irrigation volume was 353 mm. The remaining irrigation volume was divided into 6 times for irrigation.

[0037] Take the planting of celery as an example for N 2 O and yield test. Example 3 of the present invention is a treatment group, and a control group: the amount of biogas residue applied after fermentation is 450kg / hm 2 , one-time uniform application before planting; the total irrigation volume throughout the growth period is 426mm.

[0038] Farmland soil N 2 The emission o...

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Abstract

The invention relates to a fertilization and irrigation method capable of achieving greenhouse organic vegetable field greenhouse gas emission reduction. According to the method, before plowing and field planting of an organic vegetable field, organic fertilizer capable of being converted into 300-450 kg / hm2 pure nitrogen is applied to greenhouse organic vegetable field soil to be processed in a one-time mode, and / or total irrigation amount in the whole growth period of vegetable is made to be 353-426 mm, so that the emission of N2O from soil is reduced. According to the method, the application amount of organic fertilizer is reduced by 1 / 3 than usual, total irrigation amount in the whole growth period is reduced by 17% than usual, the emission of N2O from soil is reduced by about 22-54%, and the emission of N2O from soil of the greenhouse organic vegetable field can be reduced by 79% by means of the fertilization and irrigation method.

Description

technical field [0001] The invention relates to a method for fertilizing and irrigating greenhouse gas emission reduction in facility organic vegetable fields, and belongs to the technical fields of agricultural technology and environmental protection. Background technique [0002] Nitrous oxide is the most important factor in destroying the ozone layer, and its single-molecule warming potential is CO 2 The contribution to global warming accounts for about 7.9% of the total contribution of all greenhouse gases, and is considered to be the largest influencing factor in the 21st century. N 2 O has become a hotspot in global ecological and environmental science research. Cropland ecosystems are the global N 2 An important emission source of O, accounting for 35% of global annual emissions, is also responsible for atmospheric N in recent decades. 2 An important reason for the continuous increase of O concentration, while vegetable soil N 2 O emission is also one of the impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00A01G25/00
Inventor 杨岩江丽华孙钦平刘春生谭德水崔荣宗石璟徐钰王梅魏建林李国生
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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