【摘要】 为了筛选安全有效的甜高粱除草剂,为甜高粱地杂草的防治提供科学依据,以甜高粱杂交种大力士为供试作物,杂草数量和植株性状为考察指标,通过播前土壤处理比较试验,研究了几种除草剂的除草效果及对甜高粱的安全性。结果表明,3种除草剂对甜高粱田杂草都具有较好的防除效果,异丙草·莠除草剂3750m L/hm2除草效果可达100%,且对饲用杂交甜高粱生长发育影响最小,播前土壤1次用药即可取得理想的除草效果。更多还原

【Abstract】 Hybrid variety of sweet sorghum Dalishi as experimental material was conducted to the herbicides with soil treatment in field. The weeds population and plant characteristic were observed to select the safe and effective herbicides and provide the scientific basis for controlling weeds in sweet sorghum field. The result showed that three chemical herbicides had significantly control effect on the weeds in sorghum field. Isopropyl with 3750 ml/ha had 100% control weeds in the sorghum field, but it had minimum effect to sorghum growth and development. One application before sowing could achieve ideal control effects.更多还原