胺苯黄隆残留对早稻药害的研究

Study on the Effects of Residual of Ethametsulfuron on the Early Season Rice

据１９９３～１９９５年试验在明，在冬季１２月１５日前亩施胺苯黄隆１．５克以下，对后茬早稻安全，对早稻返青活棵，分蘖成穗，穗粒结构及产量均无不良影响。油菜田施用胺苯黄隆后１８０天，对水稻秧苗仍有残留药害。因此，油菜后茬可移栽水稻，但不能作水稻秧田或直播水稻。

The result of field trial from 1993 to 1995 showed that ethametsulfuron was safe to the following early season rice using befor Dec. 15 at dosage of 22.5 g/ha,no harmful effect to reviving, tillering and rice yield. There was significant damage on the nursery and growth of following rice seedling bed even 180 days after using ethametsulfuron in the rapeseed field. It is suggested that applying in rapeseed-paddy rotation district ethametsulfuron is accepted when following crop is transplant rice,and unaccepted when following crop is direct seeding rice or in rice bed.