A cultivation method for reducing the risk of green manure production in rice fields in winter

Abstract

The invention discloses a cultivation method for reducing the risk of green manure production in rice fields in winter. The operation steps are as follows: (1) According to the local long-term climate historical data, calculate the climate risks such as green manure sowing germination and later vegetative growth in different periods of winter green manure, and select the appropriate winter green manure sowing date. (2) Select different straw treatment methods, winter green manure seeding methods and seeding rates according to the biomass of the previous rice straw field cover. (3) After sowing green manure in winter, spread 4-6 kg of potassium chloride and 0.5 kg of zinc sulfate per mu evenly; The depth is 10 to 15 cm, and the thickness of the covering soil on the furrow surface between adjacent horizontal ditches is 1.3 to 1.6 cm. By reducing the risk of green manure cultivation in winter, the invention increases the yield and yield stability of green manure for many years, can better play the role of green manure in winter to fertilize soil, replace chemical fertilizers, improve the environment, and improve the yield of subsequent rice crops.

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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