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Method for accelerating soil carbon in corn-wheat crop rotation system

A wheat and corn technology, applied in land preparation methods, animal carcass fertilizers, applications, etc., can solve the problems of insignificant improvement of soil organic matter, single planting structure, loss of soil vitality, etc., to achieve stable and crop yield, increase crop yield, ensure The effect of nutrient supply

Active Publication Date: 2017-01-25
INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for many years, farmers in the Huang-Huai-Hai Plain have only paid attention to nitrogen, phosphorus, and potassium in order to increase yields, resulting in a decline in soil fertility and an imbalance in nutrients.
In addition, the planting structure in each region is single, and repeated cropping year after year has caused soil compaction and a decrease in beneficial microbial flora. Although the rate of returning wheat and corn stalks to the field has increased year by year, the increase in soil organic matter has not been obvious. Currently, more than 60% of the cultivated land in the Huanghuaihai Plain has achieved All the wheat and corn stalks were returned to the field, but the plow layer became shallow and the soil lost its vitality due to the impact of the fineness of the stalks and the specifications of the rotary tillage.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0055] In 2014 / 2015, it was implemented in the field of Boxin Company, Huantai County, Zibo City, Shandong Province. The plot has irrigation conditions. The tested wheat variety is Luyuan 502 and the corn variety is Zhengdan 958, both of which are high-yield varieties. The harvested straw was crushed to about 5 cm, and evenly spread on the surface, using 3 kg of type I compound bacteria, mixed with water at 1:15, and sprayed evenly on the surface of the straw. Wheat was sown by a seeder on October 8, 2014. The wheat row spacing was 18 cm, the sowing rate was 15 kg / mu, and the sowing depth was 3 cm. Fertilize compound formula fertilizer (N:P 2 O 5 :K 2 O = 18:21:6) 20 kg / mu, soil conditioner 20 kg, evenly mix and sow with a seeder. Maize was sown on June 15, 2014 with compound fertilizer (N:P 2 O 5 :K 2 O=15:15:15) 20 kg, soil conditioner 20 kg. The plant amino acid liquid fertilizer was sprayed at the jointing, poplar and milk maturity stages of wheat, diluted and spray...

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Abstract

The invention relates to the field of micro-organisme fungicide and soil amelioration, and particularly discloses a method for accelerating soil carbon in the corn-wheat crop rotation system. The method is as follows: in the corn-wheat crop rotation system, after having harvested corn and wheat, shattering and returning to the field the corn straw and wheat straw, spraying the micro-organisme fungicide agent that is capable of accelerating the fermentation and decomposition of straw on the straw surface, and scattering organic fertilizer. After sowing corn and wheat, applying soil conditioner that contains azotobacter, combined with compound fertilizer, and spraying liquid amino acid fertilizer for plant during the growth phase of corn and wheat. The present method can reduce as much as possible the destabilization of soil and accelerate the decomposition of straw using biological bacterium, to guarantee the activity and diversity of micro-organisme in arable soil. The present method uses soil conditioner to regulate soil structure, thereby strengthening soil fertility and accelerating the accumulation of soil carbon.

Description

technical field [0001] The invention relates to the field of microbial inoculants and soil improvement, in particular to a method for promoting soil carbon sequestration in a corn-wheat rotation system. Background technique [0002] Carbon dioxide is one of the most important greenhouse gases causing global climate change. Reducing carbon dioxide emissions and increasing carbon sinks is an important way to slow down the greenhouse effect and its impact on the human social and economic system and achieve sustainable development. Soil is a huge carbon pool in terrestrial ecosystems, and its changes profoundly affect the concentration of carbon dioxide in the atmosphere. China is the world's largest greenhouse gas emitter and faces enormous pressure to reduce emissions. The carbon sink of agricultural soil accounts for 35% of the total soil carbon, which can offset about 10-12% of the total industrial carbon dioxide emissions. Agricultural soil carbon The carbon sequestration ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02C05G3/00C05G3/02C05G3/04C05G3/60C05G3/80
CPCA01B79/02C05B7/00C05G3/00C05G3/60C05G3/80C05B13/02C05C3/00C05C9/00C05C11/00C05D1/00C05D1/04C05D3/00C05D5/00C05D9/00C05D9/02C05F1/005C05F11/00
Inventor 陈敏鹏夏旭路森
Owner INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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