二甲戊灵控释制剂在小麦田防除杂草中的残留与药效评价。
Residue and bio-efficacy evaluation of controlled release formulations of metribuzin against weeds in wheat.
机构信息
Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi, 110 012, India.
出版信息
Bull Environ Contam Toxicol. 2010 Sep;85(3):357-61. doi: 10.1007/s00128-010-0091-0. Epub 2010 Jul 31.
Controlled release formulations of metribuzin in polyvinyl chloride, (emulsion); carboxy methyl cellulose, CMC and carboxy methyl cellulose- kaolinite composite, CMC-KAO are reported. The MET-CMC-KAO-3 (T(9)) formulation provided a superior control (76.1%) of weeds in field grown wheat in comparison to metribuzin 75 DF (57.14%) at the dose (350 g a.i. ha(-1)) after 90 days of sowing. The treatment (T(9)) reduced the dry weight of the weed flora after 30 days of sowing (4.0 g m(-2)) and significantly superior over metribuzin 75 DF (6.0 g m(-2)) and control (17.72 g m(-2)). There were nil to negligible metribuzin residue in soil at harvest of wheat crop and were within prescribed limit of 10 mg L(-1) in drinking water (EPA).
报道了在聚氯乙烯（乳液）、羧甲基纤维素（CMC）和羧甲基纤维素-高岭土复合材料（CMC-KAO）中，二甲戊灵的控释制剂。与 75%二甲戊灵 DF（57.14%）相比，MET-CMC-KAO-3（T（9））制剂在播种后 90 天时，以 350 g ai/ha 的剂量，对田间生长的小麦中杂草的控制效果更好（76.1%）。在播种后 30 天时，处理（T（9））减少了杂草群落的干重（4.0 g/m²），明显优于 75%二甲戊灵 DF（6.0 g/m²）和对照（17.72 g/m²）。在收获小麦时，土壤中几乎没有或没有二甲戊灵残留，而且在饮用水（EPA）中规定的 10 mg/L 限量内。
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