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Compound agent for improving cold resistance of wheat in spring, application method and application of compound agent

A compounding agent and cold resistance technology, which is applied in the field of compounding agents for improving the cold resistance of wheat in spring, and achieves the effects of different application effects, alleviation of influence and obvious effect.

Active Publication Date: 2021-11-23
ANHUI AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0007] The purpose of the present invention is to solve the existing exogenous plant growth regulator or to improve the cold resistance of wheat by using traditional fertilizers and single agents (such as urea and potassium dihydrogen phosphate), to deal with various wheat varieties and different geographical environment conditions The problem that the effect of the wheat under the condition is not ideal, and a compound agent, application method and application thereof for improving the cold resistance of wheat in spring are provided

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  • Compound agent for improving cold resistance of wheat in spring, application method and application of compound agent
  • Compound agent for improving cold resistance of wheat in spring, application method and application of compound agent
  • Compound agent for improving cold resistance of wheat in spring, application method and application of compound agent

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Embodiment Construction

[0021] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0022] The test will be carried out in the test base of Anhui Agricultural University from 2020 to 2021. The tested varieties are Yannong 19, Wanmai 52, Huaimai 44 and Zhengmai 366. The sowing time is November 7, 2020, and the basic seedlings are 250,000 / 667m 2 , the amount of fertilizer applied is 50kg / mu of compound fertilizer (N:P:K=15:15:15), 20kg / mu of urea, the base fertilizer includes all compound fertilizers and 10kg / mu of urea, topdressing urea 10kg / mu at the jointing stage, other The management is the same as the high-yield cultivation requirements of the field. From March 21st to 23rd, according to China Meteorological and Weather Forecast observations, the natural low temperature fell below zero (if figure 1 shown), the above-mentioned compound solution was sprayed within 24 hours before the...

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Abstract

The invention relates to the technical field of wheat cultivation, in particular to a compound agent for improving cold resistance of wheat in spring, an application method and application of the compound agent. Within 24 h of low-temperature stress pretreatment, a compound mixed solution (containing Tween-20 with the final concentration of 3 vol%) of 20 mg.L<-1> of 16-BA, 100 mg.L<-1> of chitosan oligosaccharide, 0.1 mg.L<-1> of 124-epibrassinolide and 0.01 micromol.L<-1> of coronatine is externally sprayed. The photosynthetic performance of flag leaves can be remarkably improved, normal development of florets is guaranteed, the influence of low temperature on the growth process of wheat is relieved, wheat yield loss caused by low-temperature stress is relieved, and the effect of relieving low-temperature stress of wheat in the booting stage is remarkable.

Description

technical field [0001] The invention relates to the technical field of wheat cultivation, in particular to a compound agent for improving winter cold resistance of wheat, an application method and application thereof. Background technique [0002] Wheat is the world's largest food crop, providing food for 40% of the world's population. In recent years, with the frequent occurrence of extreme climates, low temperature in spring has become one of the main limiting factors for winter wheat production. The southern Huanghuai and middle and lower reaches of the Yangtze River in China are frequent areas of low temperature in spring. The low temperature in spring usually occurs from the end of March to the first ten days of April. At this time, the young ears of wheat are in the critical period of meiosis and tetrad formation, and are very sensitive to low temperature. The phenomenon that the ear is not strong. Late spring coldness of wheat occurs frequently in my country, and th...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N43/16A01N43/22A01N37/46A01N25/30A01P21/00A01G13/00A01G7/06
CPCA01N43/90A01N43/16A01N43/22A01N37/46A01N25/30A01G13/00A01G7/06
Inventor 张文静杨丽李凌雨黄正来马尚宇樊永惠
Owner ANHUI AGRICULTURAL UNIVERSITY
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