大豆田化学除草只有做到适时、适量、方法得当，才能既清除杂草，又达到增产的良好效果。１９９８年，人们正忙于头遍铲趟之时，从６月１０日开始降雨，连绵２０余天，给头遍铲趟带来了很大的困难。笔者有豆田１３亩，直到７月３日大豆田发生草地螟虫害时，还有３亩没铲完... Soybean field chemical weeding only do timely, appropriate, method properly, in order to remove weeds, but also to achieve the good effect of increasing production. In 1998, when people were busy shoveling their heads, rain began on June 10 and lasted for more than 20 days, which brought great difficulties to shoveling through the shovels. I have 13 acres of bean fields, until July 3 occurred in the soybean fields of soybean borer insects, there are 3 acres no sho ...