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霞儒金都红苹果 的栽试点

苹果苗土壤过湿根表面易生瘤状物

  来源:long8bj.com
  苹果苗土壤过湿,根表面易生瘤状物,且裂根增多;土壤过于,肉质根小,质地硬;以田间较大持水量的60%为宜。胡萝卜对土壤的要求与萝卜相似。在pH5~8的砂质壤土中生长良好。在整个生长发育过程中吸收的钾较多,氮和钙次之,磷、镁较少,氮、磷、钾、钙、镁的吸收比例为100:40~50:150~250:50—70:7~10。栽培技术,胡萝卜病虫害较少,适应性强,好管理。

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