摘要
本文对湖南省东安县杉木无性系种子园通过分析杉木针叶营养元素年变化规律,确定营养分析的样品采集期,初步对球花产量与针叶中N、P、K含量之间关系进行探讨,制定出营养元素含量的临界值和最适范围。
This paper studies the change laws of the needle-leaves of the mother tree in Chinese-fir seed orchard of the clone from Dongan county of Hunan province. It determines the collective date of the sample to use the vegetative analysis. It discusses the relationships between the strabile output and the content of N.P and K. It provides the critical values and optimum ranges of the contents of the vegetative elements.
出处
《湖南环境生物职业技术学院学报》
1995年第1期51-55,共5页
JOurnal of Hunan Environment Biological Polytechnic
关键词
杉木
种子园
营养元素
年变化规律
Chinese-fir
Seed orchard
Vegetative element
Annual change
