A method to promote soil carbon sequestration in a corn-wheat rotation system

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 bacterial agents 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 that cause global climate change. Reducing carbon dioxide emissions and increasing carbon sinks are important ways to slow down the greenhouse effect and its impact on human socio-economic systems 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 emitter of greenhouse gases and is facing enormous pressure to reduce emissions. The carbon sink of agricultural soil accounts for 35% of the total soil carbon, which can offset 10-12% of the total industrial carbon dioxide emissions. Agricultural soil carbon The carbon sequestrati...

Examples

Embodiment 1

[0055] In 2014 / 2015, it was carried out in the field of Boxin Company in Huantai County, Zibo City, Shandong Province. The land has irrigation conditions. The wheat variety Luyuan 502 and the corn variety Zhengdan 958 were tested, both of which are high-yield varieties. The harvested straw is crushed to about 5 cm, and evenly spread on the surface. Use 3 kg of type I compound bacteria, mix water at a ratio of 1:15, and spray evenly on the surface of the straw. Wheat was sown by a seeder on October 8, 2014. The row spacing of wheat 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, 20 kg of soil conditioner, mix evenly and sow with a columbine seeder. Corn was sown on June 15, 2014, and compound fertilizer was applied at the same time (N:P 2 o 5 :K 2 O=15:15:15) 20 kg, 20 kg of soil conditioner. The plant amino acid liquid fertilizer was sprayed at the jointing, poplar and mil...

technical field

[0001] The invention relates to the field of microbial bacterial agents 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 that cause global climate change. Reducing carbon dioxide emissions and increasing carbon sinks are important ways to slow down the greenhouse effect and its impact on human socio-economic systems 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 emitter of greenhouse gases and is facing enormous pressure to reduce emissions. The carbon sink of agricultural soil accounts for 35% of the total soil carbon, which can offset 10-12% of the total industrial carbon dioxide emissions. Agricultural soil carbon The carbon sequestrati...

Examples

Embodiment 1

[0055] In 2014 / 2015, it was carried out in the field of Boxin Company in Huantai County, Zibo City, Shandong Province. The land has irrigation conditions. The wheat variety Luyuan 502 and the corn variety Zhengdan 958 were tested, both of which are high-yield varieties. The harvested straw is crushed to about 5 cm, and evenly spread on the surface. Use 3 kg of type I compound bacteria, mix water at a ratio of 1:15, and spray evenly on the surface of the straw. Wheat was sown by a seeder on October 8, 2014. The row spacing of wheat 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, 20 kg of soil conditioner, mix evenly and sow with a columbine seeder. Corn was sown on June 15, 2014, and compound fertilizer was applied at the same time (N:P 2 o 5 :K 2 O=15:15:15) 20 kg, 20 kg of soil conditioner. The plant amino acid liquid fertilizer was sprayed at the jointing, poplar and mil...