随着玉米田免耕作业的推广,草害问题愈来愈突出,为此玉米播种后出苗前应大力推广应用“封、杀”化学除草技术,现针对河北省生产实际再次谈谈推广多年来成熟的高效“封、杀”除草技术的优点和技术要点一、草害问题日趋严重1.杂草除而不尽。一些从麦田遗留下来的老龄和大龄杂草肆虐,而未出土的杂草将继续出土危害。玉米一出苗就面临 With the promotion of no-till operation in maize field, the problem of grass and pest damage becomes more and more prominent. Therefore, we should vigorously promote the use of chemical “weeding and killing” chemical weeding techniques before sowing after sowing of corn. Now we talk about promotion of production in Hebei Province Over the years mature and efficient “seal, kill ” Weeding technology advantages and technical points First, the grass-growing problems worsen 1 Weeds not only endless. Some old and older weeds left over from wheat fields are raging, while the undisclosed weeds will continue to be unearthed. The emergence of a corn face