Atrazine is the second mostly used herbicide in USA,but low utilization ratio causes severe environmental problem,so controlled release system is highly needed
N-Linked glycosylation of hemagglutinin(HA) has been demonstrated to regulate the virulence and receptor-binding specificity of avian influenza virus(AIV).In th
Soybean is often intercropped with maize,sugarcane,and sorghum.Because of the shade coming from the latter,the soybean stem lodging is often a very serious prob