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大蒜蒜薹期如何管理?
Posttime:2016-12-31 Visits:
24
核心tips:大蒜生长进入抽薹期,花芽、鳞芽开始分化,由他养向自养过渡。此期是大蒜一生中需水、需肥量最大的时期,需水量占一生的40%。这
大蒜生长进入抽薹期,花芽、鳞芽开始分化,由“他养”向“自养”过渡。此期是大蒜一生中需水、需肥量最大的时期,需水量占一生的40%。这时只有水大肥足,才能使蒜薹长得粗细均匀,上下一致。
浇足催薹水和鳞茎膨大水,抽薹期应视天气情况每5~6天浇一次水,以保持土壤湿润,降低田间气温地温。蒜薹长成后要及时采收。采薹前3~5天要停止浇水,浅锄松土,使植株稍现萎蔫,以便“口松”,容易采薹。采薹后的大蒜进入鳞茎膨大期,要及时浇水施肥,以延长叶片光合作用的时间,防止大蒜叶片早衰。
化肥施用:
施足催薹肥和鳞茎膨大肥,抽薹期,要追施复合肥、钾肥,促进大蒜抽薹和蒜头的膨大。采薹后,应以速效氮肥为主,配合磷、钾为辅。每亩冲施尿素或硫酸钾复合肥15-20公斤。
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生姜和干姜有什么区别呢?
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大葱田间虫害无公害防治技术
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