julejie,tongzhijizaishuidaoshangshiyongbudang,rongyizaochengyaohai,tebieshizaishuidaochousuiqi,gangchouchudesuizihennen,penyaohoudaoliyingkeshanghuichuxianheban,yanghuaqishiyonghaikenengzaochengjieshilvxiajiang。danbutongdetongzhijiduizuowudeanquanxingyoujiaodachayi。
銅製劑有無機銅製劑和有機銅製劑之分。其中無機銅製劑品種較多,有效成分為氫氧化銅的有可殺得、銅大師(86.2%氧化亞銅可濕性粉劑)、冠菌清(57.6%氫氧化銅幹粒劑)等;有效成份為堿式硫酸銅的有銅高尚(27.12%堿式硫酸銅懸浮劑)和傳統的波爾多液等。有機銅製劑有龍克菌等。
銅製劑靠釋放出銅離子與真菌體內蛋白質中的-SH、-NH2、-COOH、-OH等(deng)基(ji)團(tuan)起(qi)作(zuo)用(yong),導(dao)致(zhi)病(bing)菌(jun)死(si)亡(wang)。銅(tong)離(li)子(zi)的(de)含(han)量(liang)和(he)釋(shi)放(fang)能(neng)力(li)是(shi)決(jue)定(ding)銅(tong)製(zhi)劑(ji)殺(sha)菌(jun)防(fang)病(bing)效(xiao)果(guo)的(de)主(zhu)要(yao)因(yin)素(su),同(tong)時(shi)也(ye)是(shi)決(jue)定(ding)其(qi)對(dui)作(zuo)物(wu)安(an)全(quan)性(xing)高(gao)低(di)的(de)重(zhong)要(yao)因(yin)素(su)。
zaiboerduoyezhong,tonglizichengluohezhuangtai,pendaozuowubiaomianhouduizuowubijiaoanquan,yaojicanliushijianchang,dangzhiwutibiaomianyoushuizhushi,yaobanhuibuduanshifangchutonglizi,fahuishajunzuoyong。danzaixiaqiujigaowenduoyudeqingkuangxia,youqishilianxujiangyushijianguochangshi,shiyongtongzhijirongyifashengyaohai。zaizheyangdetianqitiaojianxia,yepianheguoshishangdeshuizhubaochishijianhenchang,erqieshuizhuzhongkeyirongjiejiaoduodeeryanghuatan,cujinyaobanzhongtonglizideshifang,dangtonglizinongduchaoguoyidingliangshi,zuowujihuishoudaoshanghai。zhezhongxianxiang,tongchangbeichengweitongzhijidefengyuyaohai。tongzhijifengyuyaohaidefashengyouyidingguilv。pensaboerduoyehou15-20天內,其他銅製劑在噴霧後10tiannei,ruguoyudaolianyinyutianqijiuhenrongyifashengyaohai。xiangduilaishuo,qingyanghuatongzhijitonglizishifangsudujiaokuai,gengrongyiduizuowuchanshengyaohai。youjitongzhijitonglizishifangsudujiaoman,duizuowuanquanxinghaoxie。
是shi否fou容rong易yi對dui作zuo物wu產chan生sheng藥yao害hai,還hai與yu銅tong製zhi劑ji的de藥yao物wu顆ke粒li大da小xiao有you很hen大da關guan係xi。藥yao物wu顆ke粒li小xiao,噴pen霧wu施shi藥yao後hou藥yao物wu能neng更geng均jun勻yun地di分fen布bu到dao作zuo物wu表biao麵mian,不bu僅jin保bao護hu效xiao果guo好hao,而er且qie由you於yu作zuo物wu表biao麵mian單dan位wei麵mian積ji內nei的de藥yao物wu成cheng分fen較jiao少shao,釋shi放fang出chu的de銅tong離li子zi不bu足zu以yi對dui作zuo物wu產chan生sheng藥yao害hai。藥yao物wu顆ke粒li大da,噴pen霧wu施shi藥yao後hou不bu僅jin防fang治zhi效xiao果guo較jiao差cha,而er且qie容rong易yi對dui作zuo物wu產chan生sheng藥yao害hai。據ju了le解jie,銅tong高gao尚shang的de藥yao物wu顆ke粒li極ji小xiao,噴pen霧wu施shi藥yao後hou不bu僅jin防fang病bing效xiao果guo好hao,而er且qie即ji使shi在zai水shui稻dao等deng作zuo物wu抽chou穗sui期qi使shi用yong也ye不bu容rong易yi對dui作zuo物wu產chan生sheng藥yao害hai。
銅(tong)製(zhi)劑(ji)與(yu)其(qi)他(ta)藥(yao)劑(ji)混(hun)用(yong)不(bu)當(dang),也(ye)容(rong)易(yi)產(chan)生(sheng)藥(yao)害(hai)。銅(tong)製(zhi)劑(ji)與(yu)二(er)硫(liu)代(dai)氨(an)基(ji)甲(jia)酸(suan)鹽(yan)類(lei)殺(sha)菌(jun)劑(ji)混(hun)用(yong),容(rong)易(yi)產(chan)生(sheng)藥(yao)害(hai)。氫(qing)氧(yang)化(hua)銅(tong)與(yu)春(chun)雷(lei)黴(mei)素(su)的(de)混(hun)劑(ji),蘋(ping)果(guo)、葡萄、大豆和藕等作物的嫩葉對它敏感,施藥時一定要注意濃度,並在下午4點以後噴藥。
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