长期以来,我县薄荷田的杂草一直处于失控状态。据考查,薄荷田杂草有31种,密度高的田块每平方米约935～1209株,减产15％～45％,杂草混入薄荷茎叶中,会使蒸馏出的原油品质降低。为了控制薄荷田的杂草,近年来,我县经多点试验,摸索出一些化除方法,现介绍如下: 一、以禾本科杂草为主的化除方法在杂草出苗前每亩用60%丁草胺乳油80～100毫升或50％乙草胺乳油70～90毫升对水60～80公斤(以 For a long time, the weed of peppermint in our county has been out of control. According to the test, there are 31 species of weed in the mint field. About 935-1209 plants per square meter are densified in the field, yield is reduced by 15% -45%. The weeds are mixed in the stems and leaves of peppermint, which will lower the quality of distilled crude oil. In order to control the weed in the mint fields, in recent years, our county has tried many experiments to find out some methods for its removal. The introduction is as follows: First, weeding method based on gramineous weeds 60% Butachlor EC 80 to 100 ml or 50% Acetochlor EC 70 to 90 ml Water 60 to 80 kg