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近年来,随着紧凑型玉米品种的大面积推广,由于密植、高温、杂草以及多年连作等原因,玉米各种土传病害、缺素症状发生严重,在一定程度上阻碍了玉米生产的发展。在玉米播种前或出苗后及早发现和防除会大大减轻病害的发生和危害。现将玉米各种苗期病害特征、预防方法总结如下。黄叶苗——特征:起初幼苗叶色淡绿,然后逐渐变黄,严重时全叶枯死。预防方法:种子包衣或
In recent years, with the popularization of compact maize varieties, due to close planting, high temperature, weeds and continuous cropping for many years, the seriousness of various soil-borne diseases and deficiency factors of corn has hindered the development of maize production to a certain extent . Early detection and control of maize before sowing or emergence can greatly reduce the occurrence and harm of the disease. Corn seedling diseases are now features, prevention methods are summarized below. Yellow leaf seedlings - Characteristics: At first the seedling leaf color light green, then gradually turn yellow, severe full-blown dead. Prevention: seed coating or