喷施草甘膦防除茶园杂草试验初报

A SHORT EXPERIMENTAL REPORT BY USING GLYPHOSATE ON WEED-CONTROL FOR TEAGARDENING

应用草甘膦在茶园进行了药剂对茶树生育、茶叶品质及除草效果的试验表明:采用合理的剂量和恰当的施药方法,草甘膦对茶树生育和茶叶品质无不良影响。对茶园杂草有效防除剂量:Ⅰ型杂草用纯品30—50克,Ⅱ型杂草60—90克,Ⅲ型杂草110—150克,喷药时每亩另加洗衣粉50—100克,可以提高防除效果。对Ⅰ、Ⅱ型杂草一年中于4月上中旬及7月上中旬共用药两次,可达防除目的,对Ⅲ型杂草7、8月用药效果最佳。在无风或微风时,以低容量喷雾较常量喷雾可提高工效和杀草效果。用草甘膦除草能达到快速、高效、经济的目的,对茶园杂草的防除具有广阔的前景。

Glyphosate is a high-active, low-toxic, less-persistent, systematic-trans-locatable and sterilant herbicide. So far, it has been widely applied in teagardening, fruit-gardoning and so on. The paper reports on an experiment in which glyphosate is used in tea-gardening. The result shows: 1.Adoption of reasonable dose and proper usage, glyphosate has no bad effects on tea-growth and tea quality. 2.The pure-glyphosate dose of controlling sensitive-weeds is 450g/ha—750g/ha; of medium-resistant-weeds in 900g/ha—1350g/ha; of strong-resistant-weeds is 1650g/ha—2250g/ha If add 750g/ha—1500g/ha washing-powder into medicine liquid, a higher medical efficiency will be obtained. 3.The application of glyphosate, the cost of management can be reduced. At all events, controlling weeds in tea-gardening with glyphosate is able to achieve high-active, economic success, and has no bad effect for tea, and it is worthy of being widely applied.