133团职工发明了一种手工破除土壤板结的放苗器．有效地解决了棉花膜上点播后遇雨土壤板结的问题（见图）。这种手动工具制作简易，可根据作物的播种方式自行制做。刺滚由圆木制成，直径20cm左右，长度可根据自己的需要而定，两列钢针间距与行距相等，破板结的两排钢钉间距3cm 133 groups of workers invented a manually break the soil compaction of the peach shooter. It effectively solves the problem of compaction of the soil with rain after sowing on the cotton film (see photo). This handy tool is easy to make and can be made by the way of crop planting. Barbed from the logs made of round, about 20cm in diameter, the length can be based on their own needs, the spacing between the two rows of needles and row spacing equal to two rows of broken plate knot spacing 3cm