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80年代至90年代初,我场绿肥鲜草产量平均每667平方米一直在750公斤至1000公斤之间排徊,其主要原因是杂草危害严重(主要是看麦娘)。为控制杂草危害,提高绿肥产量,从1992年起我场开始进行绿肥化学除草试验示范,1993年起全面推广,每年近700公顷绿肥面积全部实行化学除草。鲜草产量也由1993年以前每667平方米不足1000公斤上升到1750公斤以上,1997达到2050公斤。
From the 1980s to the early 1990s, the average yield of green fresh grass in our field has been ranging from 750 kg to 1000 kg per 667 square meters. The main reason for this is that the weeds are seriously endangered (mainly looking at Amaryllis). In order to control the weed hazards and increase the production of green manures, the field began to carry out demonstration experiments of chemical manure weeding in green manure since 1992 and was fully promoted since 1993. Chemical weeding was practiced in nearly 700 hectares of green manure area every year. Fresh grass production rose from less than 1,000 kilograms per 667 square meters to over 1,750 kilograms by 1993 and reached 2,050 kilograms in 1997.