摘要
金豆是一种新的选择性广谱除草剂。我们为了评价金豆单用２５、３０、４０、４５、５０、７５、１００、１５０ｇａｉ／ｈａ，与普施特混用２５＋２５、５０＋５０ｇａｉ／ｈａ剂量下防除杂草效果，１９９２－１９９７年在哈尔滨黑土上进行试验。结果表明，金豆对禾本草和阔叶草均有良好防除效果，苗后茎叶处理比苗前土壤处理药效更好。采用硫酸铵作助剂可以改善药效。适宜的施药期为大豆真叶到１片复叶期。适宜剂量为金豆单用４０－５０ｇａｉ／ｈａ，与普施特混用２５＋２５ｇａｉ／ｈａ。大豆对金豆耐药性好。如果使用两倍的推荐剂量（≥１００ｇａｉ／ｈａ），又遇到特殊潮湿条件，可发生短暂的药害，但能恢复。
Jindou is a new selective broad-spectrum herbicide.In field trials conducted on black soil at harbin during 1992-1997, the effects of Jindou alone at 25,30,40,45,50,75,100,150g ai/ha and in mixture with Pursuit at 25+25、50+50g ai/ha for weed control in soybean field were evaluated. Results indicated that the Jindou gave good control of grasses and broadleaf weeds and post-emergence application was more effective than pre-emergence application. The use of adjuvant Sulfate ammonia improves weed control effectiveness. Optium application timing was at the true-leaf to lst trifoliate-lesf stage of soybean. Optium rate of Jindou was 40-50g ai/ha alone and in mixture of Jindou plus Pursuit at 25+25g ai/ha. Soybean tolerance of Jindou was good. If double recommended rate was used (≥100g ai/ha) and met with excessive moisture temporary injury could occur, however, plant could recover.
出处
《大豆科学》
CAS
CSCD
北大核心
1998年第3期271-275,共5页
Soybean Science
