]*>","")" /> Effect of Root Fertilization by Nitrogen, Phosphoric and Potassium on Foliar Light Energy Conversion Efficiency of Armeniaca vulgaris ‘ Luntaibaixing'
Xinjiang Agricultural Sciences

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Effect of Root Fertilization by Nitrogen, Phosphoric and Potassium on Foliar Light Energy Conversion Efficiency of Armeniaca vulgaris ‘ Luntaibaixing'

GUO Zhi-chao;PAN Cun-de   

  • Received:2013-01-25 Revised:2013-01-25 Online:2013-01-25 Published:2013-01-25

根施氮磷钾肥对轮台白杏光能转换效率的影响

郭志超;潘存德   

  1. 新疆农业大学林学与园艺学院,乌鲁木齐,830052





摘要： [目的]检验根施氮、磷、钾肥对轮台白杏叶片光能转换效率(Fv/Fm)的影响,为轮台白杏的田间施肥管理提供科学依据.[方法]采用“3414”肥料效应田间试验和逐步回归分析.[结果]轮台白杏光能转换效率(Fv/Fm)的常用对数与氮肥施用量呈显著线性正相关,与磷肥施用量不相关；当钾肥(K2O)施用量超过0.2587 kg/株时,对轮台白杏的光能转换效率存在负效应.[结论]在高温、高光照、低空气湿度绿洲灌溉条件下,根施氮肥和一定量的钾肥,有利于缓解由气孔因素引起的轮台白杏叶片光能转换效率的下降.