文献类型：期刊文献

中文题名：氮磷钾配比施肥对降香黄檀苗木生长及生理的影响

英文题名：Fertilizer treatments for growth and physiology of Dalbergia odorifera seedlings

作者：吴国欣[1,2] 王凌晖[2] 梁惠萍[2] 李远发[3] 郝建[4]

第一作者：吴国欣

机构：[1]广西林业勘测设计院;[2]广西大学林学院;[3]中国林业科学研究院林业研究所国家林业局林木培育重点实验室;[4]中国林业科学研究院热带林业实验中心

年份：2012

卷号：29

期号：2

起止页码：296-300

中文期刊名：浙江农林大学学报

外文期刊名：Journal of Zhejiang A & F University

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD_E2011_2012】；

基金："十一五"广西林业科学研究项目(林科字[2007]第23号);广西大学博士启动基金项目

语种：中文

中文关键词：森林培育学;降香黄檀;氮磷钾配比;苗木生长;苗木生理

外文关键词：silviculture; Dalbergia odorifera; NPK ratio; seedling growth; seedling physiology

分类号：S723.6

摘要：采用正交设计设置氮、磷、钾3因素4水平的施肥试验,研究氮、磷、钾配比施肥对降香黄檀Dalbergiaodorifera苗木生长及生理的影响。结果表明：①不同的氮、磷、钾配施处理对降香黄檀苗木各项生长生理指标均有显著影响。在9种配施组合处理中,氮0.45 g.盆-1、磷0.30 g.盆-1（N2P3K1）处理可以促进降香黄檀苗木的高、径生长和生物量的积累;N2P3K1和氮1.80 g.盆-1、磷0.15 g.盆-1（N3P2K1）处理有利于降香黄檀苗木叶绿素质量分数的提高;N2P3K1和氮0.45 g.盆-1、磷0.15 g.盆-1、钾0.60 g.盆-1（N2P2K3）处理有利于可溶性糖质量分数的提高;②氮、磷、钾3种元素对降香黄檀苗木生长和生理的影响效应不同,以磷为最大,其次是钾,氮的影响效应最小;③降香黄檀苗木各项生长、生理指标与氮、磷、钾施用量之间存在二次函数关系。根据二次函数方程求得2年生降香黄檀苗木的合理养分元素施用量,氮肥为1.74~2.15 g.盆-1、磷（P2O5）为2.40~2.60 g.盆-1、钾（K2O）肥0.35~0.75 g.盆-1。
Fertilization with different ratios of nitrogen（N）,phosphorus（P）,and potassium（K）,for growth physiology of Dalbergia odorifera seedlings was tested using an L9（34）orthogonal design and regression analysis.Results among the nine combinations,showed that for growth of height and diameter as well as biomass accumulation,0.45 g·pot-1 N,0.30 g·pot-1 P2O5（N2P3K1） was best;for increases of chlorophyll content in leaves,N2P3K1 and 1.80 g·pot-1N,0.15 g·pot-1P2O5（N3P2K1） were best;and for increases of soluble sugar content in leaves,N2P3K1 and 0.45 g·pot-1 N,0.15 g·pot-1 P2O5,0.6 g·pot-1 K2O（N2P2K3） were best.For growth and physiology,P was most important,then K,and then N.Quadratic regression models of growth and physiology for two-year-old D.odorifera seedlings were established for N,P,and K showing suitable application amounts of N as 1.74~2.15 g·pot-1,P2O5 as 2.40~2.60 g·pot-1,and K2O as 0.35~0.75 g·pot-1.