Cultivation method for reducing production risk of winter green manure of rice field

Abstract

The invention discloses a cultivation method for reducing the production risk of winter green manure of a rice field. The cultivation method comprises the following operation steps of 1, according tohistorical data of local long-term climate, calculating climate risks of green manure sowing and germination and later vegetative growth of the winter green manure in different stages, and selecting the proper winter green manure sowing date; 2, according to the field coverage biomass of previous rice straw, selecting different straw treatment methods, winter green manure sowing methods and sowingamounts; 3, after the winter green manure is sowed, 4-6 kg of potassium chloride and 0.5 kg of zinc sulfate are uniformly spread per mu; 4, transverse furrows with the spacing of 200-250 cm are dug in field parcels, wherein the transverse furrows are 20 cm in width and 10-15 cm in depth, and the soil covering thickness of a ridge face between every two adjacent transverse furrows is 1.3-1.6 cm. According to the cultivation method, the cultivating risk of the winter green manure is lowered, the yield of the green manure of multiple years is increased, the yield stability is improved, the effects of the winter green manure on improving soil fertility, replacing chemical fertilizer and improving the environment can be better achieved, and the yield of later rice is increased.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, and relates to a cultivation method for reducing the risk of green manure production in rice fields in winter, in particular to a cultivation technology for reducing the risk of green manure production in rice fields in the Jianghuai region. Background technique [0002] In eastern my country, the rice planting areas north of the Yangtze River and south of the Huaihe River, especially in the north of the Jianghuai River and close to the Huaihe River (the central and northern part of the Jianghuai River to the Huaihe River), have higher light and heat conditions from autumn to spring than those in the north of the Huaihe River. Yunying and other winter green manure. Compared with the main rice producing areas in the middle and lower reaches of the Yangtze River and south of the Yangtze River, the rice fields in the Jianghuai region have relatively low light and heat conditions from winter...

AI Technical Summary

Problems solved by technology

Compared with the main rice production areas in the middle and lower reaches of the Yangtze River and south of the Yangtze River, the rice fields in the Jianghuai region have relatively low light and heat conditions from winter to spring, and on the other hand, the rice harvest is late, and excessive field straw accumulation affects the sowing and emergence of green manure in winter; The winter green manure production caused by the above reasons has obstacles such as difficulty in seedling emergence and low temperature in winter, which makes the winter green manure production in the Jianghuai region have certain risks.

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