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(K_2O)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。
[ Objective ] In order to provide management Of Armeniaca vulgaris ＇ Luntaibaixing＇ efficiency （Fv/Fm） of A. vulgaris ＇ Luntaibaixing scientific basis which was used in field fertilization , the effect of fertilizer on foliar light energy conversion ＇, which was compounded by nitrogen, phosphoric and potassium, was tested. [ Method]＇ 3414＇ fertilizer effect field experiment and stepwise regression analysis were used. [ Result] The common logarithm of the light energy conversion efficiency （Fv/Fm） of A. vulgaris ＇ Luntaibaixing＇ had significant linear positive correlation with the nitrogenous fertilizer, but not with the effect of phosphate fertilizer; the potassium had the negative effect on the light energy conversion efficiency when potash fertilizer （K20） seemed more than 0.258 7 kg on per tree. [ Conclusion] Under the oasis irrigation conditions of high air temperature, high illumination intensity, low air humidity, root fertilization by the nitrogenous fertilizer and a certain amount of potash fertilizer was able to alleviate decline of the light energy conversion efficiency of A. vulgaris＇ Luntaibaixing＇ which was caused by stomatal factors.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2013年第1期106-111,共6页
Xinjiang Agricultural Sciences
基金
"十一五"国家科技支撑计划课题(2007BAD36B03)
关键词
轮台白杏
施肥
光能转换效率
Armeniaca vulgaris＇ Luntaibaixing＇
fertilization
light energy conversion efficiency
