论文部分内容阅读
美国农业研究人员研究表明,选用矮秆杂交玉米品种和采用小行距、增加种植密度两项技术措施,可有效地控制玉米地的杂草,节省除草剂,并有保护土壤的作用.
Research by American agricultural researchers shows that the selection of dwarf hybrid corn varieties and the use of small row spacing and increase the planting density of two technical measures can effectively control corn weeds, save herbicides, and the role of protecting the soil.