Cultivation method for reducing greenhouse gas emission and improving nitrogen utilization efficiency of no-tillage and direct-seeding rice field

A greenhouse gas, no-tillage direct seeding technology, applied in rice cultivation, fertilization methods, agricultural gas emission reduction, etc., can solve the problems of large volatilization, high emission, low nitrogen fertilizer utilization rate, etc., so as to reduce CH4 emissions and increase rice yield. , the effect of improving nitrogen utilization efficiency

Inactive Publication Date: 2018-11-13
HUAZHONG AGRI UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the greenhouse gas N existing in the existing no-tillage direct-seeding rice cultivation 2 High emissions of O, NH 3 Volatile amount is big, nitrogen fertilizer utilization rate is low etc

Method used

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  • Cultivation method for reducing greenhouse gas emission and improving nitrogen utilization efficiency of no-tillage and direct-seeding rice field
  • Cultivation method for reducing greenhouse gas emission and improving nitrogen utilization efficiency of no-tillage and direct-seeding rice field

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Embodiment 1

[0033] A cultivation method for reducing greenhouse gas emission and improving nitrogen utilization rate in no-tillage direct seeding paddy fields, the steps are as follows:

[0034] (1) Ditching and making compartments: After harvesting the previous crops (rape or wheat), use the Puhang hand-held PH-KG ditching machine (Shandong Puhang Machinery Co., Ltd.) to ditch and separate compartments. It is 0.25m deep and 1.8m wide. No-till planting on the van surface, and the ditch is a mechanical operation channel and irrigation and drainage channel.

[0035] (2) Sowing: select 60kg of Huanghuazhan per hectare of field. Sterilize with 1% quicklime, soak the seeds in flowing water to break the chest, and then coat 1kg of seeds with 300g dry nursery nanny, sow on the box surface from April 5th to 15th or May 20th to June 10th. The varieties used include Liangyou 289, Huangkexiang 1, Huangkexiang 2, Yangliangyou 6, Yongyou 4949, etc.

[0036] (3) Fertilizer management: The applicatio...

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Abstract

The invention belongs to the field of crop cultivation and tillage, and relates to a cultivation method for reducing greenhouse gas emission and improving the nitrogen utilization efficiency of no-tillage and direct-seeding rice field. The cultivation method is characterized by comprising the steps that 1, ditching and ridging are conducted, and no-tillage is conducted on ridge sides; 2, a mid maturing variety or a late-mid maturing variety which is high in tillering ability, developed in root system, strong in stalk, large in ear and high in lodging resistance is selected, wherein the growthperiod of the variety is 125-135 days; 3, after being disinfected, seeds are soaked with clear running water for coat scarifying, and the sprouted seeds is coated with a coating agent; 4, a good timeis selected for seeding, wherein fifty-sixty thousand basic hybrid rice seedlings are sufficiently inserted in each mu of land, and 120-150 thousand basic conventional rice seedlings are sufficientlyinserted in each mu of land; 5, in the whole growth period, 150-180 kg of N, 75-90 kg of P2O5 and 120-150 kg of K2O are applied per square meter in each hour, and simple cultivation is conducted; 6, ditches and ridges are irrigated. The cultivation method is characterized in no-tillage, direct seeding, ridge cultivation with no-tillage and nitrogenous fertilizer and water management. By means of the cultivation method, emission of greenhouse gas of the no-tillage and direct-seeding rice field is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation and tillage, and in particular relates to a cultivation method for reducing greenhouse gas emission in a no-tillage direct seeding paddy field and improving nitrogen utilization rate, and is especially suitable for effectively increasing the yield of no-tillage direct seeding rice. Background technique [0002] No-tillage is a new type of farming method that does not disturb the soil for crop planting. It has the advantages of saving time, labor, and water and soil. Compared with traditional tillage, no-tillage can increase the biodiversity of topsoil, increase soil organic matter, improve soil structure, and benefit the growth and development of crops. Rice direct seeding refers to direct direct seeding of germinated rice seeds in fields with saturated soil moisture and no water accumulation; dry rice seeds are also used for wet direct seeding. When performing wet direct seeding, broadca...

Claims

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Application Information

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IPC IPC(8): A01G22/22A01B79/00A01C21/00
CPCA01B79/00A01C21/005A01G22/22Y02P60/00Y02P60/20
Inventor 李成芳曹凑贵刘天奇
Owner HUAZHONG AGRI UNIV
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