张湾人民公社全社播种的棉麦两熟小麦,宽行6—7寸,窄行平均2.5寸。为解决窄行锄草困难问题,由农技推广站、红专大学、铁工厂同志集体反复研究,制出四齿活动锄草器,使用方便,一人一天能锄4—4.5亩。其构造如下:全部锄草器分六部分:锄刀长2.5寸,宽1寸,刀尖三角形;锄钩,两旁长6.1寸,中间两根长5.5寸,均为4厘米过心,转盘直径1.5寸,转盘与锄钩相连接,转盘中心孔4分;锄裤,长6寸,上面口径1寸,下 Zhangwan People’s Commune whole plant sown cotton wheat and wheat two lines, 6-7 inches wide, narrow row average 2.5 inches. In order to solve the difficult problem of narrow row weeding, the four-tooth active weeding device is made by the agricultural extension station, Hongzhuan University and ironworks comrades. The utility model has the advantages of convenient use and can hoe 4-4.5 mu per day. Its structure is as follows: All the weeds are divided into six parts: hoe length 2.5 inches, width 1 inch, tip triangle; hoe hook on both sides of the 6.1-inch long, 5.5 inches long in the middle are 4 cm heart, turntable diameter 1.5-inch, turntable hook and hook connected to the turntable center hole 4 points; hoe pants, 6-inch long, above the caliber 1 inch, under