| 摘要 |
A composition contg. a substd. phenylthionocarbamate of formula I [X = O,S, vinylene; l = m = 1-4; n = 0,1; R1 = H, alkyl; R2 = R3 = H, alkyl, phenyl and 4-(2,4-dichlorobenzoyl)-1,3-dimethylpyrazole-5-yl P-toluenesulfonate or 4-(2,4-dichlorbenzoyl)-1,3dimethyl-5- phenacyloxypyrazole is a herbicide for rice. A title composition controlled Echinochloa crus-galli, Monochoria vaginalis, Rotala indica, Cyperus diformica and Sagittaria pygmaea in paddy rice.
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