jinjinianlai,zajiaomianhuapinzhongzainanfangmianqudedaodamianjituiguang,zajiaomianhuabichangguimianhuayibanyaozengchanyichengyishang,danzajiaomianhuameimudemidubichangguimianhuayaojianshao500~800株,它的棉花行間較寬,少則平均行距1米,多的棉行寬度達1.1~1.3米。棉行放寬之後,棉花封行時間比常規棉要推遲10~15天。為了充分利用封行之前的時間、空間和地力,不少農民在棉花寬行套種了西瓜,每畝可增收1000元左右。
xiguasuiranzengshoule,danyouxietaozhongxiguademiantianzacaoquefangchubuli,shimianhuaxiabuguozhidefayushoudaoyizhi,buliyumianhuawenjianshengchang。zheshiyinwei,youdenongminzaitaozhongxiguaqianweishiyongchucaoji,youdexuanyongdechucaojipinzhongbuduilu,youdeshiyongdejiliangbuzu,youdeshiyongdefangfabudui,ermiantiantaozhongxiguadeyibandoufugailedimo,moneidewendu、水分、養(yang)分(fen)更(geng)利(li)於(yu)雜(za)草(cao)的(de)滋(zi)生(sheng)繁(fan)殖(zhi),結(jie)果(guo)造(zao)成(cheng)肥(fei)水(shui)長(chang)猛(meng)草(cao),雜(za)草(cao)甚(shen)至(zhi)把(ba)地(di)膜(mo)紮(zha)穿(chuan)了(le)孔(kong),直(zhi)接(jie)影(ying)響(xiang)到(dao)棉(mian)花(hua)的(de)生(sheng)長(chang)發(fa)育(yu)。因(yin)為(wei),棉(mian)花(hua)與(yu)西(xi)瓜(gua)共(gong)生(sheng)期(qi)間(jian),雜(za)草(cao)也(ye)是(shi)共(gong)生(sheng)的(de),因(yin)此(ci),在(zai)雜(za)交(jiao)棉(mian)花(hua)套(tao)種(zhong)西(xi)瓜(gua)的(de)過(guo)程(cheng)中(zhong),一(yi)定(ding)要(yao)認(ren)真(zhen)地(di)搞(gao)好(hao)化(hua)學(xue)除(chu)草(cao)。
選好棉瓜品種 xianzaishichangshangdezajiaomianhuapinzhonghenduo,taoguamiantianyibanyingxuanyongzajiaokangchongmianweihao。yinweizajiaokangchongmiangetifayujiaoda,shangtaoshijianjizhong,chengshujiaozao,chanlianggao,kehuanjieyuxiguagongshengdemaodun。xiguazeyingxuanzezaoshupinzhong,ruzhengza5號、京欣1號、抗病蘇蜜、慶農3號、極早蜜龍等品種,這些西瓜品種的生育期一般為90天左右,7月上中旬即可成熟收獲,對棉花生育無大礙。
除草要講技巧 棉花與西瓜都是雙子葉作物,除草前首先要選好對路的除草劑品種:一是忌用稻田施用的除草劑;二是要分清芽前與芽後除草劑;三是在苗床上要推廣應用床草淨除草。其次要準確掌握除草劑的施用劑量:如48%氟樂靈乳油,每畝用100~150毫升,48%拉索乳油每畝150~200毫升,分別兌水60~80斤噴灑。72%都爾乳油每畝150毫升,15%精穩殺得乳油每畝50~100毫升,12.5%蓋草能乳油每畝60~80毫升,分別兌水60斤噴灑。第三要注意操作管理:一是要適墒噴施除草劑,二是氟樂靈、都dou爾er等deng施shi藥yao後hou要yao用yong耙pa與yu土tu壤rang拌ban合he入ru土tu表biao下xia層ceng,三san是shi先xian噴pen藥yao後hou蓋gai膜mo,不bu能neng破po壞huai藥yao膜mo層ceng,四si是shi蓋gai膜mo之zhi後hou要yao紮zha實shi兩liang邊bian的de薄bo膜mo,以yi防fang大da風feng吹chui開kai薄bo膜mo,影ying響xiang施shi藥yao效xiao果guo。
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