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作 者 ：张萍 宋锋惠 史彦江

期 刊 ：植物营养与肥料学报 2013年 19卷 4期 页码：1018-1024

关键词：灰枣；锰肥；树干注射施肥；生长和品质；

Keywords:Ziziphus Jujuba cv.Huizao, Mn fertilizer, trunk injection fertilization, yield and quality,

摘 要 ：锰是果树生长发育过程中不可缺少的一种重要微量元素。为了解锰在枣生长发育过程中所起的作用,本实验采用树干注射的方式在灰枣的萌芽期,花期和膨大期增施锰肥，并对树体的生长和品质指标进行了测定。结果显示：枣在不同生长期增施锰肥对枣树生长的影响都以2.0 g/tree 表现最好，其中干径增长量、基径增长量、枣吊增长量、单果重和产量分别比对照增长了26%、33%、19%、38%和19%。对营养品质的测定中，2.0 g/株的处理枣果铁、锰、锌和钙的含量分别是对照的47%、20%、22%和13%，糖酸比为57.36。各施肥处理对灰枣生长和品质的增加均有促进作用。综上所述，在灰枣的生长期配合施用锰肥，能有效促进枣树的生长和产量和枣果营养品质的提高。

Abstract:Trace element Mn plays an important role in plant development process. To understand the role of Mn in the growth process of Ziziphus Jujuba cv. Huizao, an experiment of trunk injection of Mn was carried out at the jujube budding, flowering and fruit expanding stages, and the tree body growth indices were measured. The results show that under the treated Mn injection amounts, the optimal tree body growth indices were obtained in the treatment 2 with Mn injection of 2.0 g/tree. Compared to control, the scapus number, base stem number, the highest flowering number, the weight of single fruit and date yield are increased by 26%, 33%, 19%, 38% and 19%, respectively, and the contents of Fe, Mn, Zn and Ca in the fruits increased by 47%, 20%, 22% and 13%, separately. The tree body growth indices are also promoted in other fertilizer treatments. In general, injecting proper amount of Mn at the sensitive stages for fruits can promote the growth of tree body and yield, enhance the nutritional quality of Ziziphus Jujuba cv. Huizao as well.

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