Plant growth regulator for reducing high-temperature damage to paddy, use method and application thereof

Abstract

The invention discloses a plant growth regulator for reducing high-temperature damage to paddy, a use method and application thereof. The regulator comprises cytokinin and auxin at weight ratio of (0.1-1.2) to (0.15-0.6); the regulator also can include cytokinin at a certain ratio; in a use process, an aqueous solution is adopted by the plant growth regulator, wherein the cytokinin is 30mg / L-100mg / L, the auxin is 10mg / L-50mg / L and acetylcysteine is 50mg / L-150mg / L; the fertilizer is applied to the leaves in the meiophase stage of paddy pollen mother cells and the dosage is 40-60 liters / mu; the plant growth regulator can be used for relieving the high-temperature damage to paddy, can guarantee high and stable yield of the paddy, is suitable for paddy area over the middle and lower reaches of the Yangtze river and is especially suitable for application in high-temperature area in florescence stage.

Description

technical field [0001] The invention relates to the field of plant growth conditioners, in particular to a plant growth conditioner for alleviating rice high-temperature damage, its use method and application. Background technique [0002] Rice is native to China, and rice was planted in the Yangtze River Basin of China 7,000 years ago. According to different methods, rice can be divided into indica rice and japonica rice, early rice and middle and late rice, glutinous rice and non-glutinous rice. Chinese scientist Yuan Longping has made great contributions to the research of hybrid rice and is known as the "father of hybrid rice". The fruit of rice is rice paddy, which is called brown rice after the chaff is removed, and rice can be obtained by grinding the rice bran layer off the brown rice. Nearly half of the world's population feeds on rice. There are various ways to eat rice, such as rice, rice porridge, rice cakes, rice cakes, rice wine and so on. In addition to be...

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Problems solved by technology

[0003] However, rice cultivation is affected by various natural disasters. According to statistics, among the losses caused by various natural disasters, meteorological disasters such as disastrous weather, climate and agricultural meteorological disasters account for more than 60%. The economic losses amounted to about 10 billion yuan, and the impact on rice production was particularly serious