四川农业大学学报 ›› 2003, Vol. 21 ›› Issue (04): 303-307.doi: 10.16036/j.issn.1000-2650.2003.04.008

• 研究论文 • 上一篇    下一篇

巨桉叶片营养DRIS诊断研究

冯茂松, 张健   

  1. 四川农业大学 林学园艺学院, 四川 雅安 625014
  • 收稿日期:2003-09-16 出版日期:2003-12-31 发布日期:2017-03-07
  • 基金资助:
    四川省"九五"林业科技攻关课题"桉树短周期纸浆工业原料林经营技术体系研究"的部分内容。

On Leaf Nutrition DRIS Diagnosis of Eucalyptus grandis

FENG Mao-song, Zhang Jian   

  1. College of Forestry and Horticulture, Sichuan Agricultural University, Yaan 625014, Sichuan, China
  • Received:2003-09-16 Online:2003-12-31 Published:2017-03-07

摘要: 对巨桉叶片营养诊断的采样时间、诊断指标进行研究,结果表明:巨桉适宜的叶片诊断采样时间为24月龄,采用P/N、N/K、P/K作为诊断指标,得出N:P:K的适宜值为1:0.064~0.067:0.363~0.366。需肥顺序为:第三年为P > K > N,第四年为K > N=P。

关键词: 巨桉, 叶片, 诊断, 采样时间, DRIS

Abstract: Sampling time and diagnosis index were studied on Eucalyptus grandis leaf nutrition. The results are as follows: proper sampling time of Eucalyptus grandis leaf is 24th month;P/N, N/K, P/K are regauded as diagnosis index; and proper contrast of N:P:K is 1:0.064~0.067:0.363~0.366; Nutrition need sequence is: The third year is P > K > N, the fourth year is K > N=P.

Key words: Eucalyptus grandis, leaf, diagnosis, sampling time, DRIS

中图分类号: 

  • S792.39