| 摘要 |
A stem/leaf desiccant for crop plants which comprises as an active ingredient, a compound of formula (I): wherein X represent CH or nitrogen; Z represents halogen; A represents oxygen, sulfur, or NH; R<SUP>1 </SUP>represents hydroxyl, C<SUB>1</SUB>-C<SUB>7 </SUB>alkoxy, C<SUB>3</SUB>-C<SUB>7 </SUB>alkenyloxy, C<SUB>3</SUB>-C<SUB>7 </SUB>alkynyloxy, C<SUB>5</SUB>-C<SUB>7 </SUB>cycloalkoxy, {(C<SUB>1</SUB>-C<SUB>7 </SUB>alkoxy)carbonyl} C<SUB>1</SUB>-C<SUB>3 </SUB>alkoxy, (C<SUB>1</SUB>-C<SUB>7 </SUB>alkylamino)oxy, {di(C<SUB>1</SUB>-C<SUB>7 </SUB>alkyl)amino}oxy, (C<SUB>3</SUB>-C<SUB>7 </SUB>alkylideneamino)oxy, C<SUB>1</SUB>-C<SUB>7 </SUB>alkylamino, di(C<SUB>1</SUB>-C<SUB>7 </SUB>alkyl)amino, C<SUB>3</SUB>-C<SUB>7 </SUB>alkenylamino, C<SUB>3</SUB>-C<SUB>7 </SUB>alkynylamino, C<SUB>5</SUB>-C<SUB>7 </SUB>cycloalkylamino, {(C<SUB>1</SUB>-C<SUB>7 </SUB>alkoxy)carbonyl} C<SUB>1</SUB>-C<SUB>3 </SUB>alkylamino, or (C<SUB>1</SUB>-C<SUB>7 </SUB>alkoxy)amino; R<SUP>2 </SUP>is hydrogen or methyl; and R<SUP>3 </SUP>is hydrogen, halogen, C<SUB>1</SUB>-C<SUB>3 </SUB>alkyl, or C<SUB>1</SUB>-C<SUB>3 </SUB>alkoxy; a method for desiccating a crop plant and a method for harvesting a crop by using the stem/leaf desiccant.
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