1、一、二月份光照、溫度調節
絲瓜喜強光、耐熱、耐濕、怕寒冷,為防止低溫寒流侵襲,對反季節栽培的越冬茬絲瓜,必須及時做好光照、溫wen度du調tiao節jie。越yue冬dong茬cha絲si瓜gua進jin入ru持chi續xu開kai花hua結jie瓜gua盛sheng期qi,植zhi株zhu也ye進jin入ru營ying養yang生sheng長chang和he生sheng殖zhi生sheng長chang同tong時shi並bing進jin而er雙shuang旺wang階jie段duan。尤you其qi特te別bie注zhu意yi加jia強qiang一yi至zhi二er月yue份fen的de光guang照zhao和he濕shi度du管guan理li,使shi棚peng內nei氣qi溫wen控kong製zhi在zai:白天24~30℃,最高不超過32℃;夜間12~18℃,淩晨短時最低氣溫不低於10℃;遇到強寒流天氣時,棚內絕對最低氣溫不能低於8℃。因為絲瓜耐濕力強、為了保溫,可減少通風排濕次數和通風量。一般情況下,保溫條件好的溫室溫度比較容易控製,瓜條生長也較快。
2、結果期水、肥供應
進(jin)入(ru)持(chi)續(xu)開(kai)花(hua)結(jie)瓜(gua)期(qi)後(hou),植(zhi)株(zhu)營(ying)養(yang)生(sheng)長(chang)和(he)生(sheng)殖(zhi)生(sheng)長(chang)均(jun)進(jin)入(ru)旺(wang)盛(sheng)期(qi),株(zhu)體(ti)量(liang)逐(zhu)漸(jian)增(zeng)大(da),產(chan)瓜(gua)量(liang)累(lei)計(ji)增(zeng)加(jia),耗(hao)水(shui)耗(hao)肥(fei)量(liang)也(ye)逐(zhu)漸(jian)增(zeng)大(da)。為(wei)滿(man)足(zu)絲(si)瓜(gua)高(gao)產(chan)栽(zai)培(pei)對(dui)水(shui)、肥的需求,澆水和追肥間隔時間應逐漸縮短,澆水量和追肥量亦應相應地增加。在持續開花結瓜盛期的前期(一、二月份),每采收兩茬嫩瓜(即間隔20~25天)澆一次水,並隨澆水衝施腐熟的雞糞和人糞尿,或衝施腐植酸類型的肥料等。必要時可於棚內釋放二氧化碳氣肥。在3~5月越冬茬絲瓜持續結瓜盛期的中期,要衝施速效肥和葉麵噴施速效肥交替進行,即每10天左右澆一次水,用水衝施速效氮鉀鈣複合肥或有機速效複合肥。一般每667平方米棚田衝施10~12千克。同時每10天左右葉麵噴施一次葉麵肥如豐收一號等,調節植株生長。
3、整枝調蔓
siguadezhumanhecemandounengjiegua。dongnuansuliaodapengbaohudizaipeiyuedongchasigua,zaigaodumizhitiaojianxia,yicaiquliudanmanzhengzhi。zaijieguaqianhechixukaihuazuoguachuqi,yaojishimodiaozhumanyeyejiandeyeya,buliucezhi(蔓),每株留一根主蔓上吊架。在持續開花結瓜盛期的中期,除利用主蔓結瓜外,還可留2~3節的短側蔓結瓜。即在側枝上留一瓜,瓜後保留1yedaqudingxin,shiquanzhusuoyoudecezhidougeliuyigegua。zaichixukaihuajieguashengqidehouqi,zhijiangshouruodecezhijizaomoqu,baohuzhumanhebaoliushengchanglianghaodecemanshengchang,rangqijienengua2~3條後再摘心,使同一植株上幾條側蔓與主蔓同時結瓜。
4、培育壯蔓
朱zhu老lao師shi說shuo,低di溫wen寡gua照zhao情qing況kuang下xia,絲si瓜gua植zhi株zhu經jing常chang出chu現xian生sheng長chang緩huan慢man,莖jing蔓man細xi弱ruo,瓜gua條tiao生sheng長chang慢man,或huo果guo實shi墜zhui棵ke的de情qing況kuang,因yin此ci,培pei育yu壯zhuang蔓man是shi走zou出chu低di產chan困kun境jing的de關guan鍵jian:
shouxianshiwanliugua。diwenjijie,zhizhushengchanghuanman,ruoliuguaguozao,ziranrongyizhuizhukezi。weibaozhengjieguaqiyingyangshengchangyushengzhishengchangdepingheng,zhulaoshirenwei,touchasiguayingzaizhizhuchangdao22~24片葉時留瓜為宜。在絲瓜進入結瓜期後,為保證營養生長與生殖生長的協調進行,也應改為4~5片(pian)葉(ye)留(liu)一(yi)個(ge)瓜(gua),這(zhe)樣(yang)一(yi)般(ban)不(bu)會(hui)出(chu)現(xian)早(zao)衰(shuai)現(xian)象(xiang)。若(ruo)在(zai)絲(si)瓜(gua)結(jie)瓜(gua)期(qi)內(nei)出(chu)現(xian)枝(zhi)蔓(man)細(xi)弱(ruo)情(qing)況(kuang),應(ying)及(ji)時(shi)將(jiang)幼(you)瓜(gua)全(quan)部(bu)疏(shu)除(chu),先(xian)促(cu)蔓(man)生(sheng)長(chang),再(zai)看(kan)情(qing)況(kuang)決(jue)定(ding)留(liu)瓜(gua)。
qicishiyanghugenxi。jinguansiguagenxifada,danzaidongjidiwenpiandishi,genxishengchangsuduman,ruoyicixingshuifeiguoda,henrongyizaochengshanggen,yingxianggenxifayu,jinerzaochengjingmanshengchangshouruo。yiner,zaijiaoshuishifeishi,shuiliangyaojinliangxiao,qiebukedashuimanguan。chongfeikexuanyongshengwujunfeihuofuzhisuanleixingfeiliao,yishenggenyanggen。
今(jin)年(nian)冬(dong)季(ji)連(lian)陰(yin)天(tian)和(he)大(da)霧(wu)天(tian)氣(qi)比(bi)較(jiao)多(duo),生(sheng)產(chan)中(zhong),很(hen)多(duo)菜(cai)農(nong)因(yin)為(wei)沒(mei)有(you)提(ti)前(qian)收(shou)看(kan)天(tian)氣(qi)預(yu)報(bao),頭(tou)一(yi)天(tian)澆(jiao)水(shui)了(le),第(di)二(er)天(tian)就(jiu)遇(yu)降(jiang)溫(wen)和(he)陰(yin)雪(xue),從(cong)而(er)產(chan)生(sheng)了(le)根(gen)係(xi)受(shou)損(sun)的(de)情(qing)況(kuang)。因(yin)此(ci),在(zai)冬(dong)季(ji)蔬(shu)菜(cai)管(guan)理(li)過(guo)程(cheng)中(zhong),應(ying)特(te)別(bie)注(zhu)意(yi)天(tian)氣(qi)變(bian)化(hua)。在(zai)決(jue)定(ding)澆(jiao)水(shui)時(shi),至(zhi)少(shao)要(yao)保(bao)證(zheng)澆(jiao)水(shui)後(hou)有(you)兩(liang)三(san)天(tian)的(de)晴(qing)好(hao)天(tian)氣(qi),且(qie)應(ying)在(zai)上(shang)午(wu)進(jin)行(xing),澆(jiao)後(hou)要(yao)閉(bi)棚(peng)升(sheng)溫(wen),提(ti)高(gao)地(di)溫(wen)。
另外要培育無病蔓。灰黴病、菌核病和細菌性軟腐病等是深冬季節為害絲瓜生長的主要病害。管理過程中要“預防為主,綜合防治”,培育絲瓜的無病壯蔓。
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