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1)症状不同。2,4-D药害属于生理病害,冬春日光温室、早春大棚和早春露地番茄栽培中出现的叶片扭曲现象多属此类,秋延后栽培如使用2,4-D,由于气温高更易形成药害。2,4-D药害的症状主要是:2,4-D药液喷到花上后,由于浓度大,会积累在新生叶片中,使新生叶不能正常展开,变得细长撅起,皱缩硬化,叶缘扭曲
1) different symptoms. 2,4-D phytotoxicity belongs to physiological diseases, winter and spring sun greenhouse, early spring and early spring open field tomatoes appear distortion of leaves mostly belong to this category, such as the use of 2,4-D after autumn delay cultivation, due to the high temperature more easily Form a phytotoxicity. The main symptoms of 2,4-D phytotoxicity are: After the 2,4-D medicinal solution is sprayed on the flowers, it will accumulate in the nascent leaves due to the large concentration, so that the new leaves can not be normally expanded and become slender, Shrinkage sclerosis, leaf edge distorted