西南林业大学学报2024，Vol.44Issue(7)：27-33,7.DOI:10.11929/j.swfu.202309019
氮磷钾不同配比对丽江云杉幼苗生理生长的影响
Effects of Fertilization with Different Proportion of Nitrogen,Phosphorus and Potassium on Physiology Growth of Picea likiangensis Seedlings
摘要
Abstract
Taking the three-year high-quality seedlings of Picea likiangensis as the research object,the ortho-gonal design of 3 factors and 3 levels was used to treat seedlings with 9 different fertilization treatments with dif-ferent ratios of nitrogen,phosphorus and potassium through pot experiments to analyze the effects on the growth and photosynthetic physiology of P.likiangensis seedlings.The results showed that different proportion of nitro-gen,phosphorus and potassium had certain promotional effects on the seedling height,crown width,chlorophyll content and photosynthetic characteristics of P.likiangensis seedlings,but there were differences among treat-ment groups.The T7 fertilization ratio(urea 5 g/plant,calcium superphosphate 7 g/plant,potassium sulfate 2.5 g/plant)had the most obvious promotional effect on the crown width,chlorophyll content,net photosynthetic rate,stomatal conductance,transpiration rate and light compensation point of P.likiangensis,which was signific-antly higher than that of the control.In general,T7 fertilization was the most beneficial to the growth and promo-tion of photosynthetic capacity of P.likiangensis seedlings among different fertilization groups.关键词
氮/磷/钾/丽江云杉/苗木生长/光合特性Key words
nitrogen/phosphorus/potassium/Picea likiangensis/seedling growth/photosynthetic capacity分类
农业科技引用本文复制引用
潘彦丽,张零念,巩合德..氮磷钾不同配比对丽江云杉幼苗生理生长的影响[J].西南林业大学学报,2024,44(7):27-33,7.基金项目
国家自然科学基金项目(31560189)资助. （31560189）
