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果树膨大肥上的不少果实长不大

时间:08-10-18来源:网络 作者:佚名 收藏

 

       这一题目,是一位果农在平衡施肥大会上咨询的一句话,也是好多果农在施肥使很头痛的一件。在下分培训种发现无机肥上的确实不少,复合肥一棵树上8斤-10斤之多,尿素磷肥钾肥更为突出,长期使用化肥的果园,使土壤溶液中养肥浓度过高,盐渍化形成,土壤渗透压增大,根部的吸收能力降低。
 
      怎样不就和改变这一现象呢?从以下二个方面,作一补救和改变:
 
      补救-7月上旬可对化肥(施无机肥料)可用河北微生物研究所研制的一施保复合用剂每树一斤,可促进养分的分解、利用、合成和吸收。
改变是根本的办法,在秋施基肥时或追施膨大肥时每树2-3斤微生物菌肥,化肥的效果一定会显示出来。
 
       果树在下果实时是果树需肥的最高峰,也是根系吸收能力最强的时候,也是果树树体储存养分为来年花芽储存更多的碳水化合物提高抗寒防冻的效果。
 
      秋施肥理念是四肥一调理的新技术。即为:施足有机肥、平衡无机肥、配合矿质肥、搭配生物肥、重视调理剂,只有树立“四肥一调经”的施肥新理念,果实膨大期不会长不大,不会长的慢,要从根本上改变果树自身营养的转换时间,只有把无机速效养分转变成有机养分,才能供果实吸收,果实不会直接吸收化肥的,笔者建议果农在果树上实施平衡施肥,推广资源节约性农业技术,达到保护更低改良土壤,持续增效。郭登泰

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