健壯的植株是蔬菜豐產的保障,特別是對於生長期處在低溫高濕季節的越冬茬蔬菜,壯棵更是增強植株抗寒抗病能力、zengchanzengshoudebaozhang。yanxia,dabufenyuedongchahuangguagangdingzhishangbujiu,ruhepeiyuzhuangkeshiguanlidezhongxin,nametixianzaiguanlishang,cainongyingzhuyinaxiewentine?jizherenwei,zhongdianyousan:
一(yi)是(shi)要(yao)注(zhu)意(yi)協(xie)調(tiao)營(ying)養(yang)生(sheng)長(chang)與(yu)生(sheng)殖(zhi)生(sheng)長(chang)的(de)關(guan)係(xi)。黃(huang)瓜(gua)定(ding)植(zhi)後(hou)到(dao)結(jie)果(guo)這(zhe)段(duan)時(shi)間(jian),正(zheng)處(chu)在(zai)秋(qiu)末(mo)冬(dong)初(chu),棚(peng)內(nei)溫(wen)度(du)環(huan)境(jing)適(shi)宜(yi)於(yu)黃(huang)瓜(gua)生(sheng)長(chang),在(zai)肥(fei)水(shui)充(chong)足(zu)的(de)情(qing)況(kuang)下(xia),常(chang)發(fa)生(sheng)徒(tu)長(chang)現(xian)象(xiang)。因(yin)此(ci),此(ci)期(qi)內(nei)應(ying)采(cai)取(qu)有(you)效(xiao)措(cuo)施(shi)加(jia)以(yi)控(kong)製(zhi),以(yi)防(fang)營(ying)養(yang)生(sheng)長(chang)過(guo)旺(wang),黃(huang)瓜(gua)不(bu)坐(zuo)果(guo)。這(zhe)需(xu)要(yao)菜(cai)農(nong)做(zuo)好(hao)以(yi)下(xia)措(cuo)施(shi)。一(yi)是(shi)調(tiao)控(kong)好(hao)棚(peng)內(nei)的(de)溫(wen)度(du),拉(la)大(da)晝(zhou)夜(ye)溫(wen)差(cha),防(fang)植(zhi)株(zhu)在(zai)長(chang)期(qi)溫(wen)度(du)過(guo)高(gao)的(de)情(qing)況(kuang)下(xia)徒(tu)長(chang),一(yi)般(ban)白(bai)天(tian)溫(wen)度(du)控(kong)製(zhi)在(zai)25—30℃,夜間控製在12—15℃。二er是shi要yao注zhu意yi控kong製zhi肥fei水shui。一yi般ban黃huang瓜gua定ding植zhi後hou,到dao結jie果guo前qian這zhe段duan時shi間jian應ying控kong製zhi肥fei水shui,尤you其qi要yao少shao用yong氮dan肥fei,若ruo土tu壤rang幹gan旱han需xu要yao澆jiao水shui時shi,注zhu意yi要yao在zai定ding植zhi溝gou內nei澆jiao小xiao水shui。另ling外wai,當dang植zhi株zhu生sheng長chang過guo旺wang時shi,注zhu意yi噴pen灑sa調tiao節jie劑ji控kong製zhi,可ke噴pen灑sa750—1500倍液的助壯素或矮壯素1500—2000倍液控製。
二是養根促根。其措施如下:yishikongshuijiahuachu。huangguahuanmiaohou,yaokongzhijiaoshui,cujingenxishenzha,tongshipeihehuachu,zaibaoshangdeqiantixia,zengqiangturangtouqixing,cujinhuangguagenxifada。ershidimoyaoshidangwanfugai。ruguohuangguadingzhihoujiezhefugaidimo,buliyuhuangguagenxishenzha,yibanzaihuangguadingzhihou20天左右覆蓋地膜即可。三是澆水時,可衝施激抗菌968苗期衝施肥或芳潤根佳等促進生根的產品,增加根係數量,促進根係健康發達。
sanshifanghaogenjingbubinghai。huangguadingzhihou,genbubinghaizhijieyingxianghuangguagenxishengchanghefayu,changfashengdegenjingbubinghaiyounijingdianmeigenfubinghemankubing。duiyunijingdianmeigenfubing,keyiyong600倍的惡黴靈+1500倍的世高+1000倍的生根壯苗劑進行灌根。蔓枯病可用200倍的甲基托布津或達克寧可濕性粉劑及時對嫁接口進行塗抹。
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