1,it can increase food production in order to solve the food shortage解决粮食短缺问题。2, Reduce the use of pesticide to avoid environmental pollution.减少农药使用，避免环境污染 3, save production costs, lower food prices .节省生产成本，降低食物售价 4,increase nutrition and improve the added ...
So when you put the two things together about why you need to control weeds and how you do that, you get an idea on why farmers and others would use a herbicide.Weeds are a problem for all farms— conventional, organic andbiotech / GMO— there are products and practices that fit all ...