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西瓜苗根系再生能力弱,养根护叶记住这3点

放大字体  缩小字体 发布日期:2018-06-08  来源:安信种苗官网  作者:青桐  浏览次数:26
核心提示:西瓜苗根系的再生能力弱,受伤以后不易恢复,西瓜苗养根护叶记住这3点。
         西瓜苗根系的再生能力弱,受伤以后不易恢复,西瓜苗养根护叶记住这3点。

西瓜苗-7
 

     1. 勿在西瓜苗定植时集中施肥

    如果过多的施入未腐熟的农家肥,肥料会在土壤中发酵,产生高温和大量的有害气体,会导致西瓜苗烧根死苗等现象。建议在西瓜苗缓苗后施用以色列进口水溶肥海法保瑞丰1号10-14斤/亩。

     2. 西瓜苗定植不宜过深

     种植户定植嫁接西瓜苗的较多,嫁接可有效提高西瓜的抗病能力,但是定植不宜过深,否则会生出再生根,那么就失去了嫁接作用,达不到嫁接抗病的目的。

     3. 适时用药

     不要在中午或者傍晚喷药。中午喷药,温度太高,叶片水分蒸腾快,药物还没吸收,就晒干了;过晚喷药,因喷药后没被西瓜叶片完全吸收,就会因受潮而分解失效,达不到治疗目的,反而加重病害发生,因此选择恰当时间喷药很重要。

 
 
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