Method for cultivating rice in single cropping region in northern area

Abstract

The invention provides a method for cultivating rice in a single cropping region in the northern area, and relates to the technical field of crop cultivation. The method comprises the following steps:transferring straws out of a rice field after rice is harvested in late September to early October, and turning over; applying base fertilizer including biological organic fertilizer added with charcoal, nitrogen fertilizer, phosphorous fertilizer and potassium fertilizer; and pulping in middle early May of the next year, transplanting rice seedlings five days after pulping, and transplanting according to the specification that the planting space is 30cm*10cm. According to the method, the content of organic matters, total potassium, alkali-hydrolyzable nitrogen, available phosphate and rapidly available potassium in the soil plough layer can be increased, emission of methane and nitrous oxide and comprehensive greenhouse effect of the rice field can be reduced, the rice yield and nitrogenfertilizer utilization efficiency can be increased, and the aims of straw comprehensive utilization, soil fertility, reasonable layout of group structure, emission reduction and synergy of the rice field can be achieved.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation, and in particular relates to a rice cultivation method in a rice-ripening area in the north. Background technique [0002] Rice field system is an important source of greenhouse gas emissions, and reducing greenhouse gas emissions from rice fields is of great significance for mitigating the greenhouse effect. Methane is one of the important greenhouse gases in paddy fields. Methane emissions from paddy fields account for about 17% of the world's total annual emissions. Relevant research shows that the annual methane emissions from paddy fields in my country are 7.2-9.5Tg, and the potential for emission reduction is very large. According to incomplete statistics, about 600 million tons of straw are produced by various crops in my country every year, of which 230 million tons are rice straw. The rational recycling of straw resources has become an urgent problem to be solved in my country's...

AI Technical Summary

Problems solved by technology

In addition, since my country's farmland is mainly based on the application of chemical fertilizers, and nitrogen fertilizers are excessively applied, the utilization rate is low.

Although the black soil paddy fields in Heilongjiang have high organic matter, the long-term application of chemical fertilizers in the paddy fields has led to soil compaction and continuous decline in soil fertility

At present, there is no rice cultivation method for carbon sequestration, emission reduction, high yield, high efficiency, fertilization and soil fertility in the northern rice-growing area

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