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种土豆时土豆块应埋多深

更新时间: 2020-07-06 00:00:00     

埋入地下3至4厘米即可,一般培土厚度不低于12厘米。若播种时覆土厚度不足,出苗后随苗生长培土1至2次。覆土太薄,地温变化剧烈,匍匐茎易窜出地面。马铃薯性喜冷凉,是喜欢低温的作物。其地下薯块形成和生长需要疏松透气、凉爽湿润的土壤环境。利用块茎无性繁殖时,种薯在土温5至8摄氏度的条件下即可萌发生长,最适温度为15至20摄氏度。适于植株茎叶生长和开花的气温为16至22摄氏度。夜间最适于块茎形成的气温为10至13摄氏度,高于20摄氏度时则形成缓慢。

土豆生长周期:休眠期、发芽期、幼苗期、发棵期、

关键词: 土豆

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