文献类型：期刊文献

中文题名：氮、磷、钾对灰木莲幼苗生长和光合作用的影响

英文题名：Combined Effects of Nitrogen,Phosphorus and Potassium on the Growth and Photosynthesis of Manglietia glauca Seedlings

作者：陈琳[1] 卢立华[1] 蒙彩兰[1]

第一作者：陈琳

机构：[1]中国林业科学研究院热带林业实验中心

年份：2017

卷号：32

期号：2

起止页码：16-21

中文期刊名：西北林学院学报

外文期刊名：Journal of Northwest Forestry University

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD_E2017_2018】；

基金：中国林业科学研究院热带林业实验中心自筹项目"灰木莲引种驯化研究"

语种：中文

中文关键词：灰木莲;配方施肥;生长表现;光合作用

外文关键词：Manglietia glauca ; fomula fertilization; growth performance; photosynthesis

分类号：S718.43

摘要：采用L18(37)正交设计,开展灰木莲幼苗N、P、K配方施肥研究,依据幼苗生长表现和光合作用筛选其适宜N、P、K施肥配方。结果表明,处理8(N 0.668g·株^(-1)、P_2O_51g·株^(-1)和K_2O0.668g·株^(-1))和18(N 0.668g·株^(-1)、P_2O_52g·株^(-1)和K_2O 0.334g·株^(-1))的生长和光合表现最优,其苗高、地径、总生物量、叶片数、净光合速率、气孔导度和蒸腾速率分别比对照高314%、88%、598%、282%、83%、56%和37%,而根冠比和胞间CO_2浓度则比对照低70%和14%。N和P显著影响灰木莲幼苗的生长和光合作用,而K对灰木莲幼苗的叶片数和光合作用具有显著影响。影响灰木莲苗高和根冠比的因素次序为N>P>K,影响其他生长指标和光合参数的因素次序为P>N>K。
A fertilization trail by L18 （3^7） orthogonal design was conducted to determine the optimal nitro- gen,phosphorus and potassium requirements of Manglietia glauca seedlings in terms of the growth and photosynthesis. The best growth and photosynthesis rates were found in treatment No. 8 （N 0. 668 g · seedling-1 ,P205 1 · g seedling -1 and K2O 0. 668 g· seedling-1） and No. 18 （N 0. 668 g· seedling-1 ,P2O2· 2 g · seedling-1 and K2O 0. 334 g ·seedling-1）, in which the seedling height, root collar diameter, total bio- mass,number of the leaves, net photosynthetic rate, stomatal conductance and transpiration rate were 314%,88% ,598%,282 %,83% ,56% ,and 37% higher than those of the control,respectively. However,the root and shoot ratio and intercellular CO2 concentration were 70% and 14% lower than those of the con- trol, separately. Nitrogen and phosphorus had profound effects on all growth and photosynthesis indexes of M. glauca seedlings,while potassium only had a significant effect on the number of the leaves and photo- synthesis. The rank order of nutrient elements affecting the height and root and shoot ratio was N〉P〉K. For other growth and photosynthesis indexes,the rank order was P〉N〉K.