灭草松对花生的安全性及除草生物活性测定

灭草松防除花生田阔叶杂草反枝苋、马齿苋及莎草科杂草碎米莎草等具有很好的效果,施药后40 d株防效为80.54%～92.72%,鲜重防效为72.68%～90.00%。对花生安全性好,施药后花生未见叶片黄化、畸形及苗株矮化等药害症状。施药后40 d,花生株高及株重与人工除草无显著性差异。说明灭草松对花生安全,对产量无影响,除草、增产效果显著。

The Safety of Bentazone to Peanut and Its Herbicidal Effects on Weeds

It was good controlling effect of bentazone on broadleaf weeds including Amaranthus retroflexus and Portulaca oleracea and Cyperus iria which was Schizaeaceae weeds in the peanut field.After herbicide treatment for 40 d,the plant controlling effect and fresh weight controlling effect were 80.54%~92.72% and 72.68%~90.00% respectively.It was good safety of bentazone to peanut whose leaves did not appear as yellowing,abnormality and plants did not become dwarfingas well.There was no significant difference between herbicide treatment and antificial hoe up weeds in plant height and weight after herbicide treatment for 40 d.It indicated that bentazone was no influence on safty and yielding capacity of peanut,and the effect of controlling weeds and yield increasing were significantly.