muqian,duoshuyuedongchashucaijiuyaojinrudingzhigaofengqile。wangnian,yuedongchashucaidingzhihenduohuifashenghuanmiaomandexianxiang,nazenyangjiejuezhegewentine?duici,jizhejianyidangqianyingzuohaoyixiajidian:
首shou先xian,先xian開kai溝gou澆jiao水shui,再zai定ding植zhi封feng溝gou,保bao證zheng地di溫wen。蔬shu菜cai緩huan苗miao慢man,與yu定ding植zhi後hou澆jiao大da水shui有you很hen大da關guan係xi。因yin此ci,為wei了le使shi越yue冬dong茬cha蔬shu菜cai快kuai速su緩huan苗miao,定ding植zhi時shi不bu要yao采cai用yong先xian定ding植zhi再zai灌guan水shui的de定ding植zhi方fang法fa,以yi避bi免mian蔬shu菜cai等deng定ding植zhi後hou澆jiao水shui造zao成cheng地di溫wen降jiang低di,根gen難nan發fa緩huan苗miao難nan情qing況kuang的de發fa生sheng。應ying采cai用yong先xian開kai溝gou澆jiao水shui,再zai定ding植zhi封feng溝gou的de定ding植zhi方fang法fa,以yi保bao證zheng適shi宜yi蔬shu菜cai生sheng長chang的de地di溫wen,一yi般ban蔬shu菜cai根gen係xi發fa育yu的de地di溫wen在zai18—20℃最為適宜。
其次,定植不過深,淺栽後再覆土。蔬菜定植時淺栽,特別是在透氣性較差的黏土地上,一般可把根部向上提高約3-5cm,再zai把ba根gen上shang的de土tu加jia厚hou些xie即ji可ke。但dan隻zhi淺qian栽zai不bu增zeng加jia覆fu土tu,易yi使shi根gen部bu幹gan得de過guo快kuai,不bu利li緩huan苗miao,因yin此ci還hai得de及ji時shi覆fu上shang一yi層ceng土tu。對dui防fang病bing嫁jia接jie栽zai培pei來lai講jiang,淺qian栽zai嫁jia接jie苗miao更geng為wei必bi要yao,一yi般ban要yao求qiu嫁jia接jie部bu位wei距ju離li地di麵mian3厘米以上,使嫁接苗的嫁接部位遠離地麵,避免接穗上長出的不定根紮入地裏,影響緩苗。
另外,定植後適時減少通風時間,保溫保濕。蔬菜定植7天內,應以保溫保濕為主,盡量減少通風,促進蔬菜盡快緩苗。一般茄果類蔬菜的緩苗期白天應控製在28℃-32℃,夜間應控製在15℃-18℃;瓜類蔬菜白天應控製在28℃-35℃,夜間應控製在 16℃-18℃。此期內,棚內要求一定的濕度,一般應將濕度保持在80%左右。7天後蔬菜可基本度過緩苗期,此時可逐漸拉大風口,將棚溫降低2℃-3℃。
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