草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甘(gan)膦(lin)(lin)是(shi)內吸傳(chuan)(chuan)導型(xing)除(chu)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)劑(ji)，所以(yi)要在(zai)(zai)雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)生長最(zui)(zui)旺盛時(shi)(shi)(shi)(shi)用(yong)(yong)(yong)(yong)(yong)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)。在(zai)(zai)時(shi)(shi)(shi)(shi)間(jian)(jian)上(shang)一(yi)(yi)(yi)般(ban)(ban)在(zai)(zai)3-10月，在(zai)(zai)植(zhi)物(wu)(wu)學(xue)特(te)性(xing)(xing)上(shang)，應(ying)(ying)以(yi)開花前用(yong)(yong)(yong)(yong)(yong)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)最(zui)(zui)佳(jia)時(shi)(shi)(shi)(shi)期。一(yi)(yi)(yi)般(ban)(ban)來說(shuo)一(yi)(yi)(yi)年(nian)生雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)有15厘米左右高(gao)度(du)(du)、多年(nian)生雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)有 30厘米高(gao)度(du)(du)、6-8片葉時(shi)(shi)(shi)(shi)噴?是(shi)最(zui)(zui)遷宜的(de)(de)(de)(de)。不(bu)考慮(lv)雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)的(de)(de)(de)(de)生育時(shi)(shi)(shi)(shi)期，待(dai)雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)老(lao)化后(hou)(hou)再盲目(mu)噴藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)除(chu)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)，當然(ran)就收不(bu)到理想的(de)(de)(de)(de)防治效(xiao)(xiao)果(guo)(guo)了。在(zai)(zai)作(zuo)物(wu)(wu)行(xing)間(jian)(jian)除(chu)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)，當作(zuo)物(wu)(wu)植(zhi)株較(jiao)高(gao)與雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)存(cun)在(zai)(zai)一(yi)(yi)(yi)定的(de)(de)(de)(de)落差時(shi)(shi)(shi)(shi)，用(yong)(yong)(yong)(yong)(yong)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)效(xiao)(xiao)果(guo)(guo)較(jiao)好且安全。此時(shi)(shi)(shi)(shi)用(yong)(yong)(yong)(yong)(yong)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甘(gan)膦(lin)(lin)除(chu)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)劑(ji)時(shi)(shi)(shi)(shi)作(zuo)物(wu)(wu)因下部葉片已經老(lao)化，對(dui)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)物(wu)(wu)的(de)(de)(de)(de)敏感度(du)(du)低，傳(chuan)(chuan)導力(li)差，因而藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)物(wu)(wu)對(dui)作(zuo)物(wu)(wu)的(de)(de)(de)(de)影響很小。如玉(yu)米行(xing)間(jian)(jian)的(de)(de)(de)(de)除(chu)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)，上(shang)架后(hou)(hou)的(de)(de)(de)(de)豆類、瓜類行(xing)間(jian)(jian)除(chu)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)等都(dou)可以(yi)用(yong)(yong)(yong)(yong)(yong)這種方法(fa)。三是(shi)噴施濃(nong)度(du)(du)不(bu)同藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)效(xiao)(xiao)會(hui)有差異(yi)。據(ju)調查，農(nong)戶(hu)在(zai)(zai)用(yong)(yong)(yong)(yong)(yong)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甘(gan)膦(lin)(lin)時(shi)(shi)(shi)(shi)用(yong)(yong)(yong)(yong)(yong)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)濃(nong)度(du)(du)不(bu)像其它農(nong)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)一(yi)(yi)(yi)樣有較(jiao)嚴格的(de)(de)(de)(de)要求，隨意性(xing)(xing)較(jiao)大(da)，加(jia)大(da)用(yong)(yong)(yong)(yong)(yong)量(liang)或(huo)減少用(yong)(yong)(yong)(yong)(yong)量(liang)的(de)(de)(de)(de)現象時(shi)(shi)(shi)(shi)有發(fa)生。在(zai)(zai)確定用(yong)(yong)(yong)(yong)(yong)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)濃(nong)度(du)(du)時(shi)(shi)(shi)(shi)一(yi)(yi)(yi)定要考慮(lv)雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)的(de)(de)(de)(de)類型(xing)。一(yi)(yi)(yi)般(ban)(ban)禾(he)(he)本(ben)科(ke)雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)對(dui)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甘(gan)膦(lin)(lin)較(jiao)敏感，能(neng)被低劑(ji)量(liang)的(de)(de)(de)(de)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)液(ye)殺(sha)(sha)死(si)，而防除(chu)闊葉雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)時(shi)(shi)(shi)(shi)則要提(ti)高(gao)濃(nong)度(du)(du)；對(dui)一(yi)(yi)(yi)些多年(nian)生的(de)(de)(de)(de)根莖繁殖的(de)(de)(de)(de)惡(e)性(xing)(xing)雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)則需要較(jiao)高(gao)的(de)(de)(de)(de)濃(nong)度(du)(du)，雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)葉齡大(da)、耐藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)力(li)提(ti)高(gao)，相(xiang)應(ying)(ying)的(de)(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)量(liang)也(ye)要提(ti)高(gao)。如防除(chu)果(guo)(guo)園雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)時(shi)(shi)(shi)(shi)，一(yi)(yi)(yi)年(nian)生禾(he)(he)本(ben)科(ke)雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)時(shi)(shi)(shi)(shi)可用(yong)(yong)(yong)(yong)(yong)10%草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)甘(gan)膦(lin)(lin)500-700克兌水(shui)30-40公斤；防除(chu)一(yi)(yi)(yi)年(nian)生闊葉雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)時(shi)(shi)(shi)(shi)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)液(ye)用(yong)(yong)(yong)(yong)(yong)量(liang)應(ying)(ying)增加(jia)到750-1000克；防除(chu)多年(nian)生惡(e)性(xing)(xing)雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)時(shi)(shi)(shi)(shi)，用(yong)(yong)(yong)(yong)(yong)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)量(liang)應(ying)(ying)達到1250-1500克。但用(yong)(yong)(yong)(yong)(yong)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)過量(liang)時(shi)(shi)(shi)(shi)會(hui)迅(xun)速(su)殺(sha)(sha)死(si)植(zhi)物(wu)(wu)的(de)(de)(de)(de)傳(chuan)(chuan)導組織(zhi)，反而不(bu)利(li)于藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)液(ye)吸收而降低藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)效(xiao)(xiao)，因此為了經濟用(yong)(yong)(yong)(yong)(yong)藥(yao)(yao)(yao)(yao)(yao)(yao)(yao)(yao)，應(ying)(ying)先用(yong)(yong)(yong)(yong)(yong)較(jiao)低濃(nong)度(du)(du)把嫩草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)殺(sha)(sha)死(si)，然(ran)后(hou)(hou)約10天后(hou)(hou)再用(yong)(yong)(yong)(yong)(yong)相(xiang)應(ying)(ying)的(de)(de)(de)(de)濃(nong)度(du)(du)定向(xiang)噴?惡(e)性(xing)(xing)雜(za)(za)草(cao)(cao)(cao)(cao)(cao)(cao)(cao)(cao)。

草(cao)(cao)甘(gan)膦助劑(ji)是(shi)一種有機膦內吸傳導型滅生(sheng)性(xing)除(chu)(chu)草(cao)(cao)劑(ji)，又名為(wei)農達、鎮草(cao)(cao)寧。殺草(cao)(cao)廣(guang)譜、滅生(sheng)性(xing)強，在(zai)土壤中無(wu)殘留，廣(guang)泛應用于免耕(geng)田(tian)化學(xue)除(chu)(chu)草(cao)(cao)和林、果(guo)園的(de)定向(xiang)除(chu)(chu)草(cao)(cao)，能殺死地(di)面生(sheng)長的(de)各種雜(za)草(cao)(cao)，但對(dui)地(di)下(xia)萌芽(ya)未出土的(de)雜(za)草(cao)(cao)無(wu)效。草(cao)(cao)甘(gan)膦除(chu)(chu)草(cao)(cao)劑(ji)對(dui)40多科雜(za)草(cao)(cao)都有防效，包括單子葉(xie)、雙子葉(xie)、一年生(sheng)和多年生(sheng)的(de)草(cao)(cao)本雜(za)草(cao)(cao)及灌木(mu)、藻類(lei)(lei)、蕨類(lei)(lei)等(deng)。農民朋友(you)反映(ying)的(de)草(cao)(cao)甘(gan)膦除(chu)(chu)草(cao)(cao)劑(ji)除(chu)(chu)草(cao)(cao)效果(guo)不(bu)(bu)一致問題經過(guo)我們的(de)調查(cha)和觀(guan)察不(bu)(bu)外乎這幾個原因：一是(shi)耕(geng)作(zuo)方式(shi)不(bu)(bu)同(tong)藥效會(hui)有差異。

    資(zi)訊來源于  草甘膦(lin)助劑供應商  揚(yang)州晨化新材(cai)料(liao)股份有限公司