Effect of a New Herbicide, R-3552, on the Control of Barnyard Grass in the Rice Nersery

Abstract

The effect of R-3552 on the control of barnyard grass in rice nursery evaluated in the second crop of 1968 was briefly summarized. R-3552 was found to be highly effective in controlling three biotypes of Echinochloa crusgalli at dry, wet, and flooded nurseries in both pre- and post-emergence applications. No phytotoxicity of R-3552 to rice seed-lings was detected.

R-3552經於民國57年第2期作試驗結果，發現在旱秧田、飽水秧田、及浸水秧田，無論在裨草發芽前或發芽後使用，對三種形態不同之稗草均具良好防治效果，且對秧苗未具藥害作用。