碗莲是以藕身做种藕栽培的,在一个生长周期要经过萌芽、展叶、开花、结实、长藕和休眠等过程。从种藕萌发开始至立夏、小满期间为萌芽出土阶段。春分以后,当气温升到10摄氏度以上时,种藕上的藕芽开始萌动,清明以后,气温达15摄氏度以上时,开始长出浮时,并抽生藕鞭;当气温达20摄氏度以上时,主鞭抽生立叶,并已有较强的根系,吸肥能力增强。
In a growth cycle, the process of germination, leaf development, flowering, fruiting, lotus root growth and dormancy is required. The period from germination to Lixia and Xiaoman is the stage of germination. After the vernal equinox, when the temperature rises to more than 10 ℃, the lotus buds on the lotus root begin to sprout. After the Qingming Festival, when the temperature reaches 15 ℃, the lotus root will start to float, and the lotus root whip will be produced. When the temperature reaches 20 ℃, the main whip will produce leaves, and have strong root system, so the ability of absorbing fertilizer will be enhanced.
从立叶长出到出现后为旺盛生长阶段。6月下旬,进入梅雨季节,雨水较多,湿度大,气温高,最适宜于藕的生长,此时即进入旺盛生长期。以后,大约每隔5—7天长出一片立叶,而且一片高于一片;主鞭、侧鞭也很快生长,同时新的侧鞭不断出生,并现蕾开花。此阶段要严防大风侵袭,避免折叶伤根。
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