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1, test materials and methods
1.1 Test Material: The test agent "Living Kang Zhuang" was provided by the Development Department of Active Kang Zhuangfeng Group. Test varieties, short early. Test site, Luzhai Village, Xiaotun Township, Quzhou City.
1.2 Experimental Design and Methods
1.2.1 The experiment is set up with a treatment, a control, and repeated three times, randomly arranged, and the “live Kang Zhuang†is sprayed once on January 10 and 15 in January 2001. In the following year, the freeze injury is investigated in the next year, and the yield is measured during the mature period.
2, test results and analysis
2.1 Prevention of freezing damage
2.1.1 "Liang Kang Zhuang" can promote early return of young wheat seedlings, and promote the development of the root system, robust stems and leaves, to resist the adverse environmental effects, thereby reducing the incidence of frost damage. According to the survey, the average number of freeze-damaged strains used in "Living Kang Zhuang" was 13%. The control freezing damage was 79%; the control effect was 83.5%.
2.1.2 "Live Kang Zhuang" can promote the growth of wheat seedlings. As determined on May 15, the growth of pesticide application is strong, the leaf color is green and the plant height is normal, and the wheat that is not affected by freezing injury is generally less vigorous than that of normal wheat. Centimeters.
2.2 Effect of increasing production According to the survey, the use of "live Kang Zhuang" per mu 876 kg of wheat, the output value of 438 yuan, compared with 783 kg of control to increase output of 93 pounds, compared with the control of 391.5 yuan added 46.5 yuan, an increase of 11.9%.
3. Summary test results show that "Living Kang Zhuang" is an effective agent for the prevention and control of winter wheat freeze injury. It should be used on the 15th to the 20th of January in order to make its seedlings able to enhance frost resistance so as to make the seedlings strong and yield high. It is recommended to promote the use of large areas in production.
Han Junting, Luzhai Village, Ganzhou City, Henan Province
Anti-freeze test of active and healthy wheat in wheat
Anti-freeze test of wheat on live and healthy Zhuang wheat is the main food crop in our county. However, in our county, there are many cold springs, which cause different degrees of frost damage to wheat. At present, there is no good antifreeze effect of pesticides in order to explore effective pesticides for preventing and controlling freezing damage. , After screening out the use of "active Kang Zhuang" to prevent and control wheat freeze injury, the effect is good, now the summary is as follows: