玉米地施用除草剂王德旭（山东省莱西市植保站２６６６００）玉米地杂草种类多，数量大且难以根除，施用除草剂后一般效果都较显著。但目前山东不少农民对玉米地施用除草剂存有疑虑，认为“玉米不锄地，棒上不长粒；锄地越勤，棒上鼓粒越有劲”。近几年，我们在莱西市推广... Application of Herbicide in Cornfield Wang Dexu (Plant Protection Station, Laixi 266600, Shandong Province) There are many weeds in maize field, which are large in quantity and difficult to eradicate. The general effect is obvious after applying herbicide. However, at present, many farmers in Shandong have doubts about the application of herbicides to corn fields. They think that “corn does not hoe and grows on the bar, and the harder it hops, the harder it is on the bar.” In recent years, we promote in Laixi ...