2016年春耕生产,应该如何应对农田杂草防除及对后茬作物的影响?近日,黑龙江省农科院总农艺师闫文义、植保专家黄春艳研究员就这一问题进行了解答。一、农田杂草防除注意事项1.根据播种前后的气象条件,选择杂草防除的类型,也就是选择苗前土壤封闭处理还是苗后茎叶处理。如果土壤墒情好,播种前后有降雨,可以选择苗前土壤封闭除草,如果是干旱条件,就尽量不用苗前土壤封闭除草。因为土壤湿度对土壤处理除草剂药效的发挥 How should we deal with the prevention and control of farm weeds and the impact on the following crops? In 2016, Yan Wenyi, chief agronomist of Heilongjiang Academy of Agricultural Sciences, and Huang Chunyan, a plant protection expert, answered questions on this issue. First, crop weeds control precautions 1. According to weather conditions before and after sowing, weed control the type of selection, that is, the choice of pre-emergence soil seedling treatment or stem and leaf treatment. If the soil moisture is good, there is rainfall before and after sowing, you can choose to close the weed before the seedling soil, if it is arid conditions, try not to close before the seedling soil weeding. Because soil moisture exerts its effect on soil treatment herbicides