氮磷钾配比施肥对轮台白杏枝叶生长的影响

【目的】探讨不同氮、磷、钾配比施肥对轮台白杏枝叶生长的影响,为轮台白杏合理施肥管理技术提供依据。【方法】采用氮、磷、钾不同配比施肥试验,对轮台白杏新梢长度、新梢基茎粗度、叶绿素含量、百叶重、叶面积、叶面积指数等指标进行测定,分析施肥与轮台白杏枝叶生长的关系。【结果】施入不同的氮、磷、钾配比能提高新梢长度19.04%～51.55%、新梢基茎粗度5.32%～12.17%、叶绿素含量7.97%、百叶重4.44%～32.66%、叶面积0.01%～33.55%、叶面积指数11.74%～118.22%,且各指标与氮磷钾间存在显著相关性。【结论】适宜的氮、磷、钾配比有利于轮台白杏树体枝叶发育,初步得出对轮台白杏枝叶生长影响较大的N∶P2O5∶K2O的施入量为:31.5∶17.5∶21.0 kg/667 m2,比例为1∶0.56∶0.67。

Effects of Different Combination Ratios of N,P and K Fertilizer on Growth of Armeniaca Vulgaris ‘Luntaibaixing’

【Objective】The purpose of this project was to study the effects of different N,P and K fertilization on the growth of Armeniaca vulgaris ’Luntaibaixing’ in order to provide the theoretical foundation for the reasonable application manegement of Armeniaca vulgaris ’Luntaibaixing’ fertilizer technology.【Method】 Through the different N,P and K fertilization experiment,the indexes of new shoots length,new shoots stem diameter,leaves chlorophyll,leaf area,leaf area index were measured,and the relationship between fertilizer with growth was analyzed.【Result】The results showed that into N,P and K fertilizer relative to the controls group can make Armeniaca vulgaris ’Luntaibaixing’ new shoots length increased by 19.04%-51.55%,new shoots stem diameter by 5.32%-12.17%,leaves chlorophyll by 7.97%,shutter heavy by 4.44%-32.66%,leaf area by 0.01%-33.55%,leaf area index by 11.74%-118.22%.【Conclusion】The appropriate ratio of N,P and K was beneficial to the growth.The appropriate quantity of N,P and K fertilizer for Armeniaca vulgaris ’Luntaibaixing’ was 31.5∶ 17.5∶ 21.0 kg/667 m2 and the ratios was 1∶ 0.56∶ 0.67 under the climatic and soil condition of the experiment.