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Composition for relieving high-temperature drought stress of rice in flowering period and application method thereof

An application method and composition technology, applied in the field of compositions for relieving high temperature and drought stress during the flowering period of rice, can solve the problem of few synergistic effects and interaction studies, lack of research, heat tolerance, drought tolerance and their interactions during the flowering period of rice The impact is complex and other problems, so as to improve the ability to resist drought and other stresses, increase yield, and alleviate the effect of seed setting rate.

Pending Publication Date: 2020-07-28
RICE & SORGHUM INST SICHUAN ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the complexity of the heat tolerance, drought tolerance and their interaction during the flowering stage of rice, there are few studies on the synergistic effect and interaction of high temperature and drought in rice at home and abroad.
The prior art can only alleviate the single adversity of high temperature or drought in the flowering stage of rice, and the aqueous solution of the composition that can effectively relieve the combined stress of high temperature and drought in the flowering stage of rice is relatively scarce.

Method used

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  • Composition for relieving high-temperature drought stress of rice in flowering period and application method thereof
  • Composition for relieving high-temperature drought stress of rice in flowering period and application method thereof
  • Composition for relieving high-temperature drought stress of rice in flowering period and application method thereof

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Embodiment

[0020] The invention provides a composition for alleviating the adversity of high temperature and drought in the flowering stage of rice, which is composed of fulvic acid, betaine and Tween, wherein the fulvic acid and betaine are mixed at a ratio of 1:1.

[0021] The present invention provides a method for applying the composition for alleviating the high temperature and drought stress in the flowering stage of rice according to the above, that is, applying the above composition to the booting stage of rice, specifically comprising the following steps:

[0022] During the paddy rice booting stage, the aqueous solution of the above-mentioned composition is sprayed once to multiple times in the paddy field, preferably, sprayed once; wherein, the paddy rice booting stage refers to the late stage of booting when the paddy rice is planted until the flag leaf is completely drawn out; wherein, the above-mentioned composition The concentration of the aqueous solution is 300-500 times ...

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Abstract

The invention discloses a composition for relieving high-temperature drought stress of rice in a flowering stage and an application method of the composition. The composition is composed of fulvic acid, betaine and Tween. The invention relates to the composition for relieving high-temperature drought stress of rice in the flowering stage and the application method thereof, and belongs to the fieldof crop planting. When the composition is used in the booting stage of rice, the composition can effectively alleviate decrease in the setting rate, the heading rate and the thousand seed weight of rice under high-temperature drought adversity, improve the drought resistance and other stress capacities of plants and increase yield, so damage caused by high-temperature drought stress to rice is relieved, and the composition is suitable for being popularized and applied in agriculture.

Description

technical field [0001] The invention relates to the technical field of crop planting, in particular to a composition for alleviating high temperature and drought stress in the flowering stage of rice and an application method thereof. Background technique [0002] With global warming, stresses such as high temperature and drought often occur simultaneously from the flowering stage to the grain filling stage of rice. The Sichuan Basin, a major grain-producing area, has more than 1.5 million hectares of rice fields along the shallow hills, river valleys, and Pingba areas of the Yangtze River in the Sichuan Basin. Seriously affect rice tillering, flowering, fertilization, and grain filling, and greatly reduce rice yield and rice quality. Therefore, it is a hot topic at home and abroad in recent years to carry out research on high temperature and drought mitigation technology. [0003] However, due to the complexity of heat tolerance, drought tolerance and their interaction in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N61/00A01N37/44A01N43/08A01N25/30A01P21/00A01G7/06
CPCA01G7/06A01N25/30A01N37/44A01N43/08A01N61/00
Inventor 郭晓艺徐富贤周兴兵张林刘茂熊洪朱永川蒋鹏
Owner RICE & SORGHUM INST SICHUAN ACAD OF AGRI SCI
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