一九五五年我场在比较大面积的土地上进行学习了苏联先进的大豆出苗前后耙地除草的措施。除了五个作业区部分进行外,特别在种籽繁殖队50公顷土地上按规定的程序进行了一系列的机械耙地除草,效果很大。原计划每公顷用12个人工除草,在采用了出苗前后耙地的措施后,每公顷地仅用了1.7个工清除少数剩余的大草。大豆除草作业,我们感到必须从一系列的整地 In 1955, on a large area of ​​land, I studied the measures of weeding in front of and behind the raking of advanced soybean in the Soviet Union. Apart from the five operation areas, a series of mechanical harrow weeding has been carried out according to the prescribed procedures, especially on 50 hectares of the seed breeding team. It was originally planned to use 12 artificial weeds per hectare. After adopting the measures of harrowing before and after emergence, only 1.7 workers per hectare were used to remove a few remaining large grasses. Soybean weeding operations, we feel that we must from a series of site preparation