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                                  映霜红桃树苗木的根外追肥需要注意什么

                                  映霜红桃树苗木的根外追肥需要注意什么 
                                  (发布日期2015-9-25 8:41:11)
                                    浏览人数8330

                                  点此滚屏鼠标双击自动滚屏 

                                         映霜红桃施肥对于果农们?#27492;?#24456;简单但是映霜红桃树苗的根外追肥需要注意什么很多果农都不是很清楚下面小编来和大家分享这一过程
                                  映霜红桃树苗的根外追肥是高产的重要措施但是要注意把好五关
                                  一是肥料选择关一般应选择能快速进入叶片的肥料如硫酸铵硝酸铵氯化钾硫酸钾过磷酸钙磷酸铵等
                                  二是肥液浓度关一般尽可能采用高浓度如尿素0305硫酸钾051磷酸铵0305硫酸镁0203
                                  三是添加活性剂关在肥液中添加洗衣粉肥皂等表面活性剂能降低表面张力有利于提高喷施效果
                                  四是施用时间关在果树最需某种元素时喷施效果最好盛花期需硼量大应及时喷施硼砂花期一般不施尿素须在花后10天喷施
                                  五是喷洒部位关喷施钙肥须在临界期前临界期后没有作用应把钙肥喷洒到果实上叶背吸肥比叶面快因此叶背喷施效果比叶面喷施好
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