【摘要】 对哈尔滨地区种植的紫花苜蓿进行了苗期除草试验,结果表明,4种除草剂对苗期除草效果达到50%以上;对紫花苜蓿生长发育和经济产量都有一定影响,影响程度因除草剂种类及剂量不同而异。综合多方面因素,优化筛选出5%普施特水剂和25%氟磺胺草醚乳油,可在紫花苜蓿田大面积生产推广应用。更多还原

【Abstract】 This experiment was designed to select suitable herbicide and dosage for young alfalfa weeding in Harbin region.The result showed that the effectiveness of 4 herbicides was more than 50%.Four herbicides made negative effect on the young plants and final economic yield of alfalfa according with the herbicide types and doses.In the end,two herbicides and their application dosage were selected for large areas.更多还原