二、jiaqiangjiance,jishifangzhibingchonghai。dangqianmaitianyijinruduozhongbingchonghaidongjiqinranfashengzhongyaoshiqi,yaogenjushijiqingkuang,yindizhiyi,kaizhankexuefangzhi。yaopeizhidutuhuozheduerfangzhidixiahaichong,quebaoquanmiaoyuedong。duixiaomaitiaoxiubing,yaojianchi“帶藥偵察,就地防治,發現一點,控製一片”decelve,zuidaxiandujianshaoyuedongjunyuan。duiwenkubingdabiaodetiankuaiyaojinxingfangzhi,mingnianzaochunjinxingpubianpenwufangzhi,yadizhonghouqibinghaijishu。yaojijikaizhanxiaomaibingchonghaizonghefangzhi,quebaofangzhixiaoguo。
三、化學除草。今年麥播以來土壤墒情適宜、氣(qi)溫(wen)較(jiao)高(gao),雜(za)草(cao)冬(dong)前(qian)出(chu)土(tu)率(lv)高(gao)於(yu)往(wang)年(nian),當(dang)前(qian)雜(za)草(cao)草(cao)齡(ling)小(xiao),抗(kang)藥(yao)性(xing)低(di),麥(mai)苗(miao)小(xiao),遮(zhe)蓋(gai)度(du)低(di),易(yi)於(yu)噴(pen)藥(yao)除(chu)草(cao),且(qie)冬(dong)前(qian)施(shi)藥(yao)安(an)全(quan)間(jian)隔(ge)期(qi)長(chang),防(fang)治(zhi)效(xiao)果(guo)好(hao),又(you)不(bu)易(yi)產(chan)生(sheng)藥(yao)害(hai)的(de)有(you)利(li)時(shi)機(ji),選(xuan)擇(ze)對(dui)路(lu)農(nong)藥(yao),開(kai)展(zhan)化(hua)學(xue)除(chu)草(cao)。施(shi)藥(yao)時(shi)間(jian)要(yao)在(zai)日(ri)平(ping)均(jun)氣(qi)溫(wen)不(bu)低(di)於(yu)5℃時進行。 要根據雜草發生情況,合理用藥。對以豬秧秧、米蒿、繁縷、野油菜、薺菜等為主的雙子葉雜草發生嚴重的麥田,可用巨星、麥鐮防治;對以看麥娘、野燕麥等為主的單子葉雜草發生嚴重的麥田,可用世瑪或燕麥枯等進行防治
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