杉木苗期栽培营养的研究

Studies on Nutrition Management in Chinese Fir Seedling Cultivation

本文概述作者多年来对杉木苗期培育进行营养研究的系列成果。为系统研究杉木苗期培育过程中的营养特点，安排了氮素单肥的一年生和二年生盆栽试验与田间平行验证试验以及氮磷钾复合肥的盆栽试验等一系列试验。研究涉及不同营养条件下杉苗的生长效应、生理效应、施肥时效、养分利用率以及培育杉木壮苗的最佳施肥量、施肥时期、施肥配比等营养管理的许多方面，首次在我国林木研究中引进养分平衡原理进行营养诊断，提出了营养诊断技术，建立了一套较为完整的营养诊断指标体系，共在国内核心刊物上发表系列研究论文７篇，为杉木苗木培育过程中的栽培营养管理提供了科学的理论指导。

This paper outlines a series of research results,which the authors have done for many years, about the nutrition research of Chinese fir seedling cultivation stage.In order to study systematically the nutrition characteristics of the seedling stage,a series of experiments, which applied with N fertilizer and N. P.K. compound fertilizer separately, such as the experiments of plant in pots of one-year and two-year seedlings and the test erify of equal rank in the field were arranged. The research projects, under different nutrition conditions,involve the growth effect, physiological effect, fertilizer effeCt for a given period,utilization ratio of nutrient, the optimum time, quantities and ratio of fertililer and other aspects of nutrition management for cultivating strong seedling of Chinese fir.It's the first time in Chinese forestry research that the principles of nutrientbalance for nutrition diagnosis was introduced, the technology of nutrition diagnosis was put forward and a relative complete index system of nutrition diagnosis was established. The seven pieces of research these were published on the key publications in China and provides scientific theoretic guidance for the nutrition management of cultivation during the seedling cultivation stage.