A compound agent, application method and application for improving winter cold resistance of wheat

A technology of compound agent and cold resistance, which is applied in the field of compound agent to improve the cold resistance of wheat in spring, to achieve the effect of improving the application effect, alleviating the impact, and the effect is obvious

Active Publication Date: 2022-07-19
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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  • A compound agent, application method and application for improving winter cold resistance of wheat
  • A compound agent, application method and application for improving winter cold resistance of wheat
  • A compound agent, application method and application for improving winter cold resistance of wheat

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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 with reference to the accompanying drawings.

[0022] The test will be carried out in the experimental 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 compound fertilizer (N:P:K=15:15:15) 50kg / mu, urea 20kg / mu, base fertilizer includes all compound fertilizers and 10kg / mu urea, topdressing urea 10kg / mu during jointing period, other The management is the same as the requirements of high-yield cultivation in the field. From March 21 to 23, according to the Chinese weather forecast, the natural low temperature to below zero (such as figure 1 ), the above-mentioned compound agent solution was sprayed within 24 hours before the wheat at the booting stage w...

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Abstract

The invention relates to the technical field of wheat cultivation, in particular to a compound agent for improving the cold resistance of wheat in spring, an application method and application thereof. Within 24 hours of pre-treatment under low temperature stress, an exogenous spray of 20 mg·L ‑1 6‑BA, 100 mg L ‑1 Chitooligosaccharide, 0.1mg·L ‑1 24‑Epibrassinolide and 0.01μmol L ‑1 The compound mixed solution of coronatine (containing Tween‑20 with a final concentration of 3vol%) can significantly improve the photosynthetic performance of flag leaves, ensure the normal development of florets, reduce the impact of low temperature on the growth process of wheat, and alleviate the wheat yield caused by low temperature stress. Loss, has a significant effect on alleviating low temperature stress of wheat at booting stage.

Description

technical field [0001] The invention relates to the technical field of wheat cultivation, in particular to a compound agent, an application method and an application for improving the cold resistance of wheat in spring. 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 the areas with frequent low temperature in spring. The low temperature in spring mostly occurs from the end of March to the first ten days of April. At this time, the young wheat ears are in the critical period of meiosis and tetrad formation, and they are very sensitive to low temperature. The phenomenon of unfruitful ears. In my country, the cold spring occurs frequently. The cold spring in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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