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An integrated soil fertilization method for reducing greenhouse gas emissions in ratooned rice fields

A greenhouse gas and integrated method technology, applied in fertilization methods, agricultural gas emission reduction, land preparation methods, etc., can solve problems such as high greenhouse gas emissions, rice field soil fertility imbalance, etc., to increase yield, improve utilization, and reduce environmental pollution. Effect

Active Publication Date: 2022-03-08
HUAZHONG AGRI UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on the deficiencies in existing ratooning rice planting, in order to solve the problems of rice field soil fertility imbalance and high greenhouse gas emissions, the purpose of the present invention is to provide an integrated method for reducing greenhouse gas emissions and fertilizing soil in ratooning rice fields

Method used

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  • An integrated soil fertilization method for reducing greenhouse gas emissions in ratooned rice fields
  • An integrated soil fertilization method for reducing greenhouse gas emissions in ratooned rice fields

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Embodiment 1

[0027] An integrated soil fertilization method for reducing greenhouse gas emissions from ratooned rice paddies, the steps of which are:

[0028] (1) Green manure planting in winter: 7 days before the ratooning rice is harvested, interplant rapeseed, milk vetch or alfalfa, etc., with a seeding rate of 15kg / hm 2 .

[0029] (2) Field preparation, seedling raising and transplanting: according to the cultivation and management of high-yield ratooning rice (Xu Fuxian, Xiong Hong. "Theory and Regulation of High-yield Hybrid Rice Storage and Raising Rice". China Agricultural Science and Technology Press, 2016.).

[0030] (3) Segmented drainage ditches: 5 days after the first-season seedlings are transplanted into the field, use portable ditching machines such as the Puhang hand-held PH-KG ditching machine (Shandong Puhang Machinery Co., Ltd.) to dig every 10m in the field Drainage ditch, the depth of the ditch is 15 or 17 or 18 or 20cm, the ditch width is 20 or 17 or 19 or 21 or 23 ...

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Abstract

The invention discloses an integrated soil fertilization method for reducing greenhouse gas emissions from ratooned rice paddies. The steps are: (1) Green manure planting in winter: before the ratooned rice is harvested, green manure is interplanted in a sowing manner to fertilize the soil; after the ratooned rice is harvested , leave high stubble and straw mulch; in the second year, the first season rapeseed is used as green manure to bury and fertilize the soil; (2) open drainage ditches in sections: the first season seedlings are transplanted into the field, and drainage ditches are opened in sections in the field; (3) Fertilizer management: Apply slow-release fertilizer before transplanting the first-season seedlings, and sprinkle urea after the first-season harvest. The ratio of slow-release fertilizer and nutrients is reasonable, and the nutrients are gradually released according to the growth of rice to increase the number of spikes; (4) Water management: first-season seedlings (5) Straw management in the first season: Mechanical harvesting, crushing and mulching of straws to reduce CH 4 Drain and fertilize the soil. The operation is simple, and the greenhouse gas emission of the regeneration rice paddy field is effectively reduced, and the soil fertility of the paddy field is improved.

Description

technical field [0001] The invention relates to the field of rice cultivation and tillage, and more specifically relates to an integrated method for reducing greenhouse gas emission from ratooned paddy fields, and is especially suitable for effectively increasing the yield of ratooned rice. Background technique [0002] Raisoning rice is a one-season rice that uses the dormant buds that survived on the stubble after the first season of rice harvest, and adopts certain cultivation and management measures to make it regenerate tiller, heading, mature and harvest. Raising rice has the advantages of short growth period, high daily yield, labor saving, plant saving, water saving, low production cost, good rice quality and economic benefits. It is an important farming system for rice planting in southern my country. However, since ratooning rice is a one-season rice harvested by cultivating dormant buds into ears on the basis of the first season rice, the first season and the rege...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01G22/15A01G22/40A01G22/22A01C21/00
CPCA01B79/02A01C21/00A01G22/15A01G22/22A01G22/40Y02P60/22
Inventor 李成芳曹凑贵蔡明历刘天奇邓桥江
Owner HUAZHONG AGRI UNIV
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