Fertilizing method capable of reducing influence of chilling damage on rice at booting stage

Abstract

The invention discloses a fertilizing method capable of reducing influence of chilling damage on rice at a booting stage and belongs to the technical field of rice cultivation. According to the fertilizing method, phosphorus fertilizer as base fertilizer is applied to the field once, nitrogen fertilizer is applied to the field by stages in an application mass ratio of the base fertilizer, tillering fertilizer and earing fertilizer being 6:3:1, and potassium fertilizer is applied to the field by stages in an application mass ratio of the base fertilizer to the earing fertilizer being 7:3; potassium oxide content converted from total application amount of the potassium fertilizer is 100 kg / ha; N content converted from total application amount of the nitrogen fertilizer is 150 kg / ha; P2O5 content converted from total application amount of the phosphorus fertilizer is 55 kg / ha. The method can reduce the influence of chilling damage on the rice at the booting stage, has great significance in guarantee of stable yield of the rice and is applicable to prevention of the influence of chilling damage on the rice at the booting stage.

Description

technical field [0001] The invention relates to a fertilization method for alleviating the impact of low-temperature chilling damage on rice at the booting stage, and belongs to the technical field of rice cultivation. Background technique [0002] Rice is an important food crop in my country. In 2014, the rice planting area in my country reached 30.8711 million hm 2 , the output reached 208.2396 million tons. According to statistics, the country loses 5 million to 10 million tons of rice every year due to low temperature and chilling damage. In the three northeastern provinces, on average, large low-temperature chilling damage occurs every 3 to 5 years, while small low-temperature chilling damage occurs every year. Low-temperature chilling damage has become one of the main factors affecting high and stable rice yields. Low temperature and chilling damage in the booting stage of rice has the greatest impact on yield, and in severe cases it will cause a substantial reductio...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the prior art lacks the application method of potassium fertilizer, nitrogen fertilizer and phosphorus fertilizer about alleviating the impact of low temperature and chilling damage on rice at the booting stage, the present invention provides a fertilization method for alleviating the impact of low temperature and chilling damage on rice at the booting stage, and the technical scheme adopted is as follows:

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