目前用于免耕覆盖播种机的几种开沟器，都存在堵草问题，分草效果不理想．由于堵草而影响播种质量是目前免耕覆盖直播急待解决的问题。解决堵草问题的途径是使播种机工作时在有秸秆覆盖的本耕地上滚动，靠重量使开穴器刺入土中．然后将种子插入穴中．与传统的播种方法主要不同 Currently used for no-tillage planter sowing several opener, there is blocking the grass, grass-cutting effect is not satisfactory. Due to the blockage of grass and affecting the quality of sowing is currently no-till direct broadcast coverage issues to be solved. The solution to the problem of plugging the grass is to make the seeder work on the cultivated land covered by straw and pierce the opening device by the weight. Then insert the seeds into the hole. Different from traditional sowing methods