及ji時shi澆jiao膨peng瓜gua化hua肥fei水shui。定ding瓜gua後hou,正zheng值zhi甜tian瓜gua生sheng長chang的de水shui肥fei臨lin界jie期qi,極ji早zao施shi肥fei澆jiao水shui可ke促cu進jin甜tian瓜gua膨peng大da,可ke以yi增zeng加jia收shou入ru產chan,若ruo膨peng化hua水shui澆jiao的de太tai晚wan,肥fei水shui臨lin界jie期qi已yi過guo,無wu法fa補bu救jiu,適shi肥fei澆jiao水shui已yi、起不了作用,造成減產。
在zai甜tian瓜gua的de整zheng個ge生sheng長chang過guo程cheng中zhong,應ying保bao持chi水shui分fen均jun勻yun,一yi般ban分fen配pei苗miao伸shen蔓man期qi水shui份fen較jiao多duo,空kong氣qi濕shi度du較jiao大da,結jie果guo初chu期qi中zhong期qi水shui份fen較jiao多duo,結jie果guo後hou期qi需xu水shui較jiao少shao,空kong氣qi溫wen度du較jiao小xiao,待dai座zuo果guo後hou勤qin部bu25天一般不再澆水,已進入甜瓜後熟階段,控水利其成熟保持較高的甜度。
澆緩苗水後3-5天(tian),要(yao)及(ji)時(shi)中(zhong)耕(geng)鬆(song)土(tu),蓋(gai)地(di)膜(mo)保(bao)溫(wen)保(bao)墒(shang)連(lian)續(xu)晴(qing)天(tian)的(de)情(qing)況(kuang)且(qie)下(xia)及(ji)時(shi)壓(ya)二(er)水(shui)促(cu)秧(yang),試(shi)驗(yan)表(biao)明(ming),一(yi)旦(dan)前(qian)期(qi)水(shui)分(fen)不(bu)足(zu),空(kong)氣(qi)幹(gan)燥(zao),瓜(gua)秧(yang)缺(que)水(shui),造(zao)成(cheng)莖(jing)杆(gan)較(jiao)細(xi),弱(ruo),葉(ye)麵(mian)積(ji)較(jiao)小(xiao),子(zi)蔓(man)伸(shen)長(chang)緩(huan)慢(man),短(duan),瓜(gua)胎(tai)小(xiao),化(hua)瓜(gua),生(sheng)育(yu)不(bu)正(zheng)常(chang),操(cao)作(zuo)也(ye)費(fei)工(gong)費(fei)力(li)。
座果後每周應噴灑KH2PO4×500倍液,白糖0。3%,使果實甜度增加,品質較好。
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