| 摘要 |
A stem/leaf desiccant for crop plants which comprises as an active ingredient, a compound of formula (I): (see figure I) wherein X represent CH or nitrogen; Z represents halogen; A represents oxygen, sulfur, or NH; R1 represents hydroxyl, C1-C7 alkoxy, C3-C7 alkenyloxy, C3-C7 alkynyloxy, C5-C7 cycloalkoxy, {(C1-C7 alkoxy)carbonyl} C1-C3 alkoxy, (C1-C7 alkylamino)oxy, {di(C1-C7 alkyl)amino}oxy, (C3-C7 alkylideneamino)oxy, C1-C7 alkylamino, di(C1-C7 alkyl)amino, C3-C7 alkenylamino, C3-C7 alkynylamino, C5-C7 cycloalkylamino, {(C1-C7 alkoxy)carbonyl} C1-C3 alkylamino, or (C1-C7 alkoxy)amino; R2 is hydrogen or methyl; and R3 is hydrogen, halogen, C1-C3 alkyl, or C1-C3 alkoxyl a method for desiccating a crop plant and a method for harvesting a crop by using the stem/leaf desiccant.
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