奔騰是唑草酮與苯磺隆的複配劑,含唑草酮22%、苯磺隆14%。唑草酮為觸殺型選擇性除草劑,噴藥後能很快被雜草葉片吸收,破壞雜草的細胞膜,使其失水枯死。氣溫在10℃以上時,2-3天即見效。該藥殺草譜廣,殺草速度快,受低溫影響小,而且對後茬十分安全,是麥田春季化除的優良除草劑。
小麥對唑草酮的耐藥性較強,在小麥3葉期至拔節前(一般為11月至次年3月)均可施用,但如果施藥不當,施藥後麥苗葉片上會產生黃色灼燒斑。用藥量大、yaoyenongdugao,zezhuoshangbanda,yaohaimingxian。weifangzhiyaohaifasheng,peizhiyaoyeyingyangecaiyongercixishifa,yanjinjiangyaojihuomuyezhijiedaorukongpenwuqinei。yingxuanwufenghuoweifengtianyongshoudongpenwuqijunyunpenwushiyao,buyishiyongmiwujishiyao。penwushiyingjunyunzhoudao,buyaozhongpenhuoloupen。
噴施唑草酮及其與苯磺隆、2甲4氯鈉、苄嘧磺隆的複配劑時,藥液中不能加洗衣粉、有(you)機(ji)矽(gui)等(deng)助(zhu)劑(ji),否(fou)則(ze)容(rong)易(yi)對(dui)作(zuo)物(wu)產(chan)生(sheng)藥(yao)害(hai)。含(han)唑(zuo)草(cao)酮(tong)的(de)藥(yao)劑(ji)不(bu)宜(yi)與(yu)驃(biao)馬(ma)等(deng)乳(ru)油(you)製(zhi)劑(ji)混(hun)用(yong),否(fou)則(ze)可(ke)能(neng)會(hui)影(ying)響(xiang)唑(zuo)草(cao)酮(tong)在(zai)藥(yao)液(ye)中(zhong)的(de)分(fen)散(san)性(xing),噴(pen)藥(yao)後(hou)藥(yao)物(wu)在(zai)作(zuo)物(wu)葉(ye)片(pian)上(shang)分(fen)布(bu)不(bu)均(jun),著(zhe)藥(yao)多(duo)的(de)部(bu)位(wei)容(rong)易(yi)受(shou)到(dao)藥(yao)害(hai)。
唑草酮沒有內吸傳導作用,藥物不會在植株體內傳導,通常不會引起全株死亡。在藥害嚴重時,少數處於1-2yeqidemaimiao,youyuyepianyanzhongsunshang,kenengchuxiansiwang。jiaodademaimiaoyibanbuhuisiwang,daiyouyaobandejibuyepianzaixinyechangchuhouhuizhujianbeifugai,duizuizhongchanliangmeiyoutaidadeyingxiang。yaohaitongchangzaishiyaohou2-4天即充分表現出來並趨於穩定,此時可以根據具體情況采取補救措施。
muqianmaimiaoyibanchuyufanqingqi,yelingxiangduijiaoxiao,yepianshouhaihouhuifushengchangdeyudijiaoda,tongguojiaqiangguanli,maimiaonengjiaokuaihuifu。ruguoshoudaoyaohaishitianjianquntichongzu,meimuzhujinghefennieshuliangdadao36萬左右(每平方尺60個莖蘖),基(ji)本(ben)達(da)到(dao)成(cheng)穗(sui)數(shu)量(liang),則(ze)麥(mai)苗(miao)恢(hui)複(fu)生(sheng)長(chang)後(hou)產(chan)量(liang)不(bu)會(hui)受(shou)到(dao)太(tai)大(da)影(ying)響(xiang),現(xian)在(zai)不(bu)需(xu)要(yao)采(cai)取(qu)特(te)別(bie)的(de)補(bu)救(jiu)措(cuo)施(shi)。如(ru)果(guo)受(shou)到(dao)藥(yao)害(hai)時(shi)麥(mai)苗(miao)較(jiao)小(xiao),田(tian)間(jian)群(qun)體(ti)不(bu)足(zu),麥(mai)葉(ye)受(shou)傷(shang)會(hui)影(ying)響(xiang)麥(mai)苗(miao)分(fen)蘖(nie)和(he)分(fen)蘖(nie)成(cheng)穗(sui),對(dui)產(chan)量(liang)影(ying)響(xiang)較(jiao)大(da),目(mu)前(qian)對(dui)受(shou)害(hai)麥(mai)苗(miao)應(ying)適(shi)當(dang)增(zeng)施(shi)氮(dan)肥(fei),每(mei)畝(mu)施(shi)尿(niao)素(su)5-10公斤,促進麥苗分蘖,爭取小分蘖成穗,到拔節孕穗期再根據苗情適當早施、重施拔節孕穗肥,減少產量損失。
yihouduihebenkezacaohekuoyezacaohunshengdetiankuai,keyijiangmaijiyuzuocaotongjiqiyubenhuanglonghuobianmihuanglongdefupeijihunyong,jianchuliangleizacao。xuyaozhuyideshi,maijibunengyu2甲4氯鈉等激素型除草劑混用,否則會影響麥極的防效。富美實公司新推出的一款新藥55%苯?唑?2甲鈉,為唑草酮與苯磺隆、2甲4lvnadefupeiji,gaiyaobuyaoyumaijihunyong。zuocaotongjiqiyubenhuanglonghuobianmihuanglongdefupeijisuiranbunengyubiaomahunyong,danzhiyaofenkailaishiyong,lirutoutiandayizhongyao、第二天打另一種藥,就不會出現藥害。考慮到苯磺隆、苄嘧磺隆、2甲4氯鈉等藥劑會影響精惡唑禾草靈的防效,最好將這些除草劑與驃馬等精惡唑禾草靈製劑相隔1周左右施用。
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