【摘要】 通过田间试验、调查和室内测定分析，初步筛选出适于防除草坪阔叶杂草的除草剂和适宜的浓度：麦草畏３Ｌ／公顷，绿黄隆１５０ｇ／公顷，２甲４氯３ｋｇ／公顷＋麦草畏３Ｌ／公顷，２，４－Ｄ丁酯３Ｌ／公顷＋２甲４氯３ｋｇ／公顷．它们的鲜重除草率均在８０％以上．这些药剂对草坪草无药害，对草坪的鲜重、干重、分蘖、侧根、根状茎等生长指标无不良影响，并能提高草坪覆盖度更多还原

【Abstract】 With the methods of field experiment, investigation and laboratory analysis, several kinds of herbicides were sift out. Optimum concentrations of dicamba, chlorulsuron were 3L and 150g per hm 2, MCPA mixed with dicamba and 2,4 D mixed with MCPA accounted for 3kg, 3L, 3L and 3kg per hm 2, respectively. There were no negative effects on the fresh biomass, dry weight, tiller, lateral root and rhizoid stem of Poa pratensis after herbicides used, and the coverage of lawn was increased obviously.更多还原