草甘膦在茶园中的应用研究

草甘膦是一种具有内吸传导、杀草谱广、毒性低等特性的新型化学除草剂,对根除茶园常见杂草有特效。用草甘膦防除茶园杂草的最佳浓度因杂草种类不同而异,以一、二年生杂草为主的茶园用0.10％的浓度为宜,以多年生杂草为主的茶园用0.15％的浓度较好。用液量以杂草充分湿润为度。全年喷药一次或二次即可,若喷一次,宜在五月下旬进行;若秋季草害较重,则在八月下旬复喷一次。使用该方法除草,全年只需耗药费4.80元～6.40/亩,除草效果优于全年人工除草三次者,节省除草工7～9个/亩,增产5～7％,对保持茶园生态平衡,提高茶叶品质均有益。

Studies on the Appling of the Glyophosate in the Tea Fields

The Glyphosate is a new-type chemical weed killer that has characteristics of absorbing Glyphosate and conducting it to the bodys of the weeds, extensive killing weeds lower poison and etc, and it has specially good effect of eradicating common weeds from the tea fields. The best concentrat -ion of Glyphosate which is used to eradicate weeds is different from different kinds of weeds.It is better to be used the concentration of 0.10% mainly for the annual weeds or biennial weeds in the tea fields. And it is better to be used the conccntratron of 0.15% mainly for the perennial weeds in the tea fields.It is the best amount of solution tomoist weeds sufficiently .Thesolu tion is sprayedoncc or twice a year. If it is sprayed once in a year, the best time is the last ten-days period of May. If there's the serious disaster of weeds in fall,the solution is sprayed again in the last ten-days period of August. Along these line to weed it only costs RMB 4.80-6.80 yuan, the effect of weeding tea fields is superior to the artificial weed three times, economizes 7 - 9 weeding works per mu, raise yields 5-7 % , it is helpful to hold the balance of ecology and to raise the quality of the tea.