Substd sulphonylurea herbicidal composition

摘要

Substituted sulphonyl urea herbicidical composition contains an active ingredient of formula R-SO2-NH-CX-NR1R2 (where R = -C6H5,-C6H4CH3, -C6H3(CH3)2, -C6H2(CH3)3, -C6H4.NH2, -C6H3.CH3.NH2, -C6H3.CH3.NH2, -C6H2.(CH3)2.NH2, -C6H4.NO2, -C6H3.CH3.NO2, -C6H4.Halogen, -C6H3.(Halogen)2, -C6H2(Halogen)3, -C6H3.CH3.Halogen, -C6H2.CH3.- (Halogen)2, -C6H3.NH2.Halogen, -C6H2.NH2.(Halogen)2, -C6H2.CH3.NH2.Halogen, -C6H.CH3.NH2.(Halogen)2, -C6H3.NO2.Halogen, H2C - (CH2)n-CH-, where n = 3-6, R1 and R2 are H, -CH3, -C2H5, -n-C3H7, iso-C3H7, n=C4H9, -isoC4H9, -OCH3, -OC2H5, -CH(CH3)C=CH, X = S or O). The compns are partic effective against Sinapis alba and Lepidium sativum, dosage rate is 10 kg/ha.