关键词: 毛竹, 平衡施肥, 叶养分含量, 土壤肥力, 相关性

Abstract: The nutrient content's correlation between leaf and soil of bamboo forest with balance fertilization in Fengxin County was studied.The results showed that it was basically consilient that the variation of the nutrition contents in the leaves of bamboos in the same age between the intensive managed and commonly managed forests.The contents of N,P and K of the tender leaves in the I-degree bamboo are higher than those in other ages respectively.The contents of Ca,Mg,S,Mn,Zn increased with the age increase.The major factors of influencing nitrogen content in bamboo leaf were organic matter,available P,activated acid,available N,total K in soil.The major factors and order of influencing phosphorus content in bamboo leaf were activated acid>base-exchange capacity>available K>total K>available Ca>available P>available N>pH value in soil.The major factors influencing potassium content in bamboo leaf were total N,available N,available P,total K and activated acid,its order of correlation was available P>total K>available N>activated acid>total N.Fertilization can promote supplements for nutrition of leaf,and ensure keeping bamboo forest sustainable development.

Key words: bamboo forest, balance fertilization, leaf nutrition, soil fertility, regression analysis