播前喷除草剂对冷地型草坪杂草防除效果的研究

A Study on Technique and Effect of Chemical Control of weeds for Cool Season Turfgrass.

选用扑草净、拉索、扑草净＋拉索３种除草剂进行播前土壤处理，分别在喷药后７ｄ、１４ｄ、２１ｄ、２８ｄ播种草坪草。结果表明，３种除草剂对草坪杂草防除效果各不相同，并且对草坪幼苗有一定影响，其中扑草净对一年生阔叶杂草防除效果达５５．８％，拉索对一年生禾本科杂草防除效果达９２．３％；喷药２１ｄ后播种对草坪幼苗比较安全。

hree herbicides were applied to the soil for weed control. Herbicides were spread in 7day, 14day, 21day and 28day after Seeding. The result showed that the three herbicides gave different effects on the growth of turfgrass and weed control. Compared with CK, “Prometryne” gave 55.8% control effect for annual broadleaf weeds, “Alachlor” gave 92.3% control effect for annual grass weeds. It was safe for turfgrass after 21 days of spray.