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An outbreak of the sweetpotato whitefly, Bemisia tabaci (Gennadius), biotype B occurred in the Imperial Valley, Califoia......

对本课题组研制的一种观赏植物专用缓释肥片的部分特性进行了研究,连续测定该缓释肥片1个月内水浸出物的电导率（EC）和pH值动态变化。......

Cucumber mosaic virus (CMV) has the broadest host range, infecting more than 1300 species in more than 500 genera from o......