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在紫羊茅和草地早熟禾单播草坪地，进行４种不同除草剂对阔叶杂草的防除试验研究。经３年时间的试验表明，施用７２％２甲４氯钠盐水溶粉剂的１５ｇ·１００ｍ２剂量和４８％排草丹液剂的４５ｇ·１００ｍ－２剂量除草效果均达９６％以上，并对草坪草生长发育无影响。大面积示范表明，效果显著，已推广应用。
Four different herbicides were used to control broadleaf weeds in the single turfgrasses of the fescue and meadow grass. After three years of testing, the application of 72% 2 A 4 chlorine sodium salt water-soluble powder 15g · 100m 2 doses and 48% of rowan Dan 45g · 100m-2 dose weeding effect reached more than 96%, and Lawn grass growth and development no effect. Large-scale demonstration shows that the effect is significant and has been promoted and applied.