增光即增加光照。光照充足是促進甜椒著色的重要措施之一。在甜椒轉色期一定要將植株下部的老葉、huangyejishishuchu,haiyaojiangtianjiaoneitangdebujieguozhihezaluanzhijishishuchu,yibaozhengzhizhujianhezhizhuneibutouguangtoufenglianghao,cujintianjiaojunyunzhese。danyaozhuyi,zaigaowenqiangguangzhaojijie,tianjiaozhouweideyepianbunengshuchu,yifangbeiqiangguangzhuoshang,chuxianrizhuoxianxiang。lingwai,zaitianjiaozhuanseqi,yaoqincapengmo,zengqiangpengmotouguangdu。
降溫即降低棚溫,這包括白天和夜間的溫度。甜椒轉色期的適宜溫度在25℃左右。在這個溫度下,決定甜椒顏色的茄紅素較容易形成。而過高的溫度,如溫度高於35℃時,甜椒著色反而不正常。而當前中午棚溫常高達35℃,需提早通風降溫。上午9時shi開kai始shi打da開kai棚peng室shi上shang部bu通tong風feng口kou和he前qian部bu通tong風feng口kou,通tong風feng降jiang溫wen。另ling外wai,當dang前qian棚peng內nei夜ye溫wen偏pian高gao,要yao注zhu意yi降jiang低di夜ye溫wen,加jia大da晝zhou夜ye溫wen差cha,以yi增zeng加jia光guang合he產chan物wu的de積ji累lei,促cu進jin甜tian椒jiao著zhe色se。晝zhou夜ye溫wen差cha需xu控kong製zhi在zai10℃以上。在下午棚溫降在18℃左右時關閉通風口,以保證棚內夜溫適宜。
配(pei)肥(fei)水(shui)是(shi)指(zhi)配(pei)合(he)以(yi)上(shang)措(cuo)施(shi)澆(jiao)水(shui)衝(chong)肥(fei),促(cu)進(jin)甜(tian)椒(jiao)著(zhe)色(se)。可(ke)通(tong)過(guo)追(zhui)肥(fei),補(bu)充(chong)鉀(jia)肥(fei)和(he)硼(peng)肥(fei),促(cu)進(jin)甜(tian)椒(jiao)著(zhe)色(se),不(bu)要(yao)過(guo)量(liang)施(shi)用(yong)氮(dan)肥(fei)。通(tong)常(chang)鉀(jia)肥(fei)的(de)用(yong)量(liang)為(wei)氮(dan)肥(fei)用(yong)量(liang)的(de)2倍左右。
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