苏北沿海地区大豆田化学除草初探苏北沿海地区，常年大豆种植面积２０万亩左右，单产徘徊在７５公斤上下，其产量之所以低而不稳，除因土壤、栽培等条件影响外，杂草的危害是困扰大豆高产的重要原因之一。据调查，大豆一般田块每平方市尺，有杂草１００～２００株，高的达... Chemical weeding in soybean fields in northern Jiangsu Coastal Areas In coastal areas of northern Jiangsu, perennial soybean planting area of ​​about 200000 acres, hovering around 75 kilograms, the reason why the yield is low and unstable, except for soil, cultivation and other conditions, weeds The harm is one of the important reasons for the high yield of soybean. According to the survey, the general field of soybeans per square foot, there are 100 to 200 strains of weeds, high up ...