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东辛农场地处黄海之滨 ,气候温暖湿润 ,土壤肥沃 ,随着种植业结构的调整 ,洋葱已成为该场主要经济作物。近年来 ,地膜覆盖技术的推广应用以及良好的水分条件和温光资源 ,使洋葱田杂草发生严重。 2 0 0 0～ 2 0 0 1年 ,我们采用普查和定点调查相结合的方法 ,基本摸清了东辛农场
East Xin farm is located in the Yellow Sea coast, warm and humid climate, fertile soil, with the adjustment of planting structure, onion has become the field’s main cash crop. In recent years, the popularization and application of plastic film mulching technology as well as good water conditions and temperature light resources make the weeds in onion field serious. From 2000 to 2001, we used a combination of census and fixed-point surveys to find out exactly what Dong Xin Farm