豆田草害是影响大豆产量与品质的主要因素之一，在农业生产中人工除草效率低，劳动强度大。应用化学除草，不断引进开发除草剂新品种，具有除草及时、效果好、不伤苗、工效高、成本低等优点。各类除草剂的作用方式、杀草范围及环境要求等各有特点，应根据豆田杂草群落、气... Soybean field grass damage is one of the main factors affecting the yield and quality of soybean. In the agricultural production, artificial weeding is inefficient and labor-intensive. Application of chemical weeding, the introduction of new varieties of herbicides, herbicides with timely, good effect, not to hurt the seedlings, high efficiency, low cost and so on. The role of various types of herbicides, herbicide range and environmental requirements of each have their own characteristics, weeds should be based on soybean fields, gas ...