一、早蓋膜提溫
今(jin)年(nian)春(chun)季(ji)氣(qi)溫(wen)明(ming)顯(xian)偏(pian)低(di),回(hui)升(sheng)較(jiao)慢(man),地(di)溫(wen)較(jiao)低(di),不(bu)利(li)於(yu)蔬(shu)菜(cai)定(ding)植(zhi),定(ding)植(zhi)期(qi)的(de)延(yan)遲(chi)將(jiang)會(hui)導(dao)致(zhi)蔬(shu)菜(cai)上(shang)市(shi)期(qi)的(de)延(yan)遲(chi),提(ti)早(zao)上(shang)市(shi)的(de)時(shi)間(jian)優(you)勢(shi)不(bu)能(neng)得(de)以(yi)發(fa)揮(hui),經(jing)濟(ji)效(xiao)益(yi)就(jiu)會(hui)受(shou)到(dao)明(ming)顯(xian)影(ying)響(xiang)。保(bao)護(hu)地(di)蔬(shu)菜(cai)往(wang)往(wang)是(shi)上(shang)市(shi)期(qi)越(yue)早(zao),其(qi)行(xing)情(qing)越(yue)好(hao),相(xiang)應(ying)的(de)經(jing)濟(ji)效(xiao)益(yi)就(jiu)越(yue)高(gao)。為(wei)此(ci),針(zhen)對(dui)今(jin)年(nian)低(di)溫(wen)的(de)實(shi)際(ji)情(qing)況(kuang),應(ying)當(dang)盡(jin)早(zao)支(zhi)好(hao)大(da)棚(peng)骨(gu)架(jia),及(ji)早(zao)覆(fu)蓋(gai)棚(peng)膜(mo),提(ti)高(gao)栽(zai)培(pei)畦(qi)內(nei)的(de)溫(wen)度(du),為(wei)適(shi)時(shi)栽(zai)植(zhi)秧(yang)苗(miao)創(chuang)造(zao)適(shi)宜(yi)的(de)溫(wen)度(du)。
二、早澆水保墒
去qu冬dong今jin春chun我wo省sheng各ge蔬shu菜cai產chan區qu因yin有you效xiao降jiang雨yu降jiang雪xue量liang較jiao小xiao,菜cai田tian缺que墒shang現xian象xiang普pu遍bian嚴yan重zhong。早zao春chun蔬shu菜cai栽zai植zhi秧yang苗miao後hou一yi般ban都dou要yao澆jiao蒙meng頭tou水shui,水shui量liang較jiao大da,因yin澆jiao水shui後hou往wang往wang導dao致zhi地di溫wen的de下xia降jiang,反fan而er不bu利li於yu蔬shu菜cai盡jin快kuai緩huan苗miao,容rong易yi造zao成cheng僵jiang苗miao或huo老lao化hua苗miao。為wei此ci,應ying當dang及ji早zao澆jiao水shui,先xian緩huan解jie一yi下xia土tu壤rang墒shang情qing,然ran後hou蓋gai上shang棚peng膜mo提ti高gao棚peng內nei的de溫wen度du,等deng到dao秧yang苗miao栽zai植zhi後hou再zai澆jiao1次蒙頭水。
三、作高埂覆膜
栽植番茄、茄子、甜椒、黃瓜、西葫蘆等果菜類蔬菜,早春因冷棚溫度低、濕度大,常會導致番茄早疫病、黃瓜霜黴病、甜(tian)椒(jiao)枯(ku)萎(wei)病(bing)等(deng)病(bing)害(hai)的(de)發(fa)生(sheng)。在(zai)栽(zai)培(pei)上(shang)要(yao)改(gai)變(bian)種(zhong)植(zhi)方(fang)式(shi),由(you)傳(chuan)統(tong)的(de)平(ping)畦(qi)栽(zai)培(pei)改(gai)為(wei)高(gao)埂(geng)覆(fu)膜(mo)栽(zai)培(pei),可(ke)以(yi)起(qi)到(dao)很(hen)好(hao)的(de)增(zeng)溫(wen)降(jiang)濕(shi)效(xiao)果(guo),提(ti)高(gao)肥(fei)料(liao)利(li)用(yong)率(lv),培(pei)育(yu)壯(zhuang)苗(miao),減(jian)少(shao)病(bing)害(hai)的(de)發(fa)生(sheng),提(ti)高(gao)產(chan)量(liang)。
四、施足底肥
早zao春chun冷leng棚peng果guo菜cai對dui肥fei料liao的de需xu求qiu量liang較jiao大da,施shi加jia充chong足zu的de底di肥fei非fei常chang重zhong要yao,施shi肥fei要yao有you機ji肥fei和he化hua肥fei結jie合he使shi用yong,有you機ji肥fei要yao充chong分fen腐fu熟shu。茄qie果guo類lei蔬shu菜cai重zhong點dian增zeng加jia磷lin肥fei和he鉀jia肥fei的de使shi用yong量liang,葉ye菜cai類lei蔬shu菜cai以yi施shi用yong偏pian氮dan型xing鉀jia肥fei為wei主zhu。對dui於yu重zhong茬cha種zhong植zhi的de地di塊kuai,土tu壤rang有you板ban結jie或huo鹽yan漬zi化hua的de,要yao注zhu意yi增zeng施shi生sheng物wu菌jun肥fei,可ke以yi起qi到dao很hen好hao的de改gai善shan土tu壤rang性xing狀zhuang,提ti高gao肥fei料liao利li用yong率lv的de效xiao果guo,對dui提ti高gao蔬shu菜cai產chan量liang、改善品質作用很大。
手機版




