摘要
为了促进南酸枣幼林的生长,采用配方施肥试验方法研究了不同施肥处理对南酸枣幼树生长的影响。结果表明:每株施放2.0 kg有机肥,1年生南酸枣幼树胸径生长量提高了28.06%,树高生长量提高了22.32%;不同施肥配方中叶片的氮、磷、钾元素含量有显著性差异,但不同配方叶片氮、钾、磷元素含量均呈递减趋势;树高、胸径生长量最佳的处理12叶片中的氮、磷、钾含量也最高,与对照相比提高了35.03%、100.02%、52.87%;氮元素对幼年期南酸枣胸径、树高生长发育有极显著作用,磷、钾元素对南酸枣胸径生长发育有显著作用,这为南酸枣幼树平衡施肥提供了理论依据。
In order to promote the growth for young stand of Choerospondias axillaris as study the effects of different fertilization treatments on the growth of young stand. Results showed the diameter growth increase 28.06% and height growth increase 22.32% of annual Choerospondias axillaris with 2.0 kg organic fertilizer of per plant. The content of nitrogen, phosphorous, potassium contents in leaves exists significant differences on different formula fertilization, but the contents declined obviously along with the growth. The diameter and height growth and content of nitrogen, phosphorous, potassium contents in No.12 leaf increased 35.03%, 100.02%, 52.87% relatively. Juvenile period of nitrogen on Choerospondias axillaris and diameter and height growth is extremely important. Phosphorous, potassium on the growth diameter growth has a significant role, it provides the theory basis for the balanced fertilization of young stand of Choerospondias axillaris.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2017年第5期50-54,共5页
Journal of Central South University of Forestry & Technology
基金
湖南省林业科技计划项目(HNLYT2013-016)
关键词
南酸枣
配方施肥
叶片
矿质元素
Choerospondias axillaris
formula fertilization
leaf
mineral element
作者简介
童琪，硕士研究生
通讯作者：李志辉，教授，博士，博士生导师；E-maillzh1957@126．com
