肥料与密度对春大麦叶绿素荧光参数影响的正交回归分析  

Orthogonal Regression Analysis on Effect of Fertilizer and Densityon Chlorophyll Fluorescence Parameters of Spring Barley

作　　者：徐寿军[1] 薛海楠 刘志萍 张凤英 包海柱[3] 道日娜 李国兴 XU Shoujun;XUE Hainan;LIU Zhiping;ZHANG Fengying;BAO Haizhu;DAO Rina;LI Guoxing(College of Agronomy,Inner Mongolia University for Nationalities,Tongliao,Inner Mongolia 028043;Institute of Agronomy,Inner Mongolia Academy of Agricultural Sciences,Huhhot,Inner Mongolia 010031;College of Agronomy,Inner Mongolia Agricultural University,Huhhot,Inner Mongolia 010018)

机构地区：[1]内蒙古民族大学农学院,内蒙古通辽028043 [2]内蒙古农牧业科学研究院作物所,内蒙古呼和浩特010031 [3]内蒙古农业大学农学院,内蒙古呼和浩特010018

出　　处：《核农学报》2018年第12期2414-2422,共9页Journal of Nuclear Agricultural Sciences

基　　金：国家自然科学基金项目(31760357;31360307);内蒙古自治区饲用作物工程技术研究中心开放课题(MDK2016026)

摘　　要：为揭示施肥水平和种植密度对大麦光合作用的影响机制,以蒙啤麦5号为试验材料,运用正交回归试验设计,研究肥料和密度互作下春大麦叶绿素荧光参数的变化。结果表明,在一定范围内,增施氮、钾肥料、加大种植密度能够有效提高大麦的最大荧光(F_m),但超过这个范围,则导致F_m下降。增施氮、磷肥料、加大种植密度能够有效提高最大光化学效率(F_v/F_m),但超过这个范围,则导致F_v/F_m下降。增施氮、磷、钾肥料能够有效提高光化学淬灭系数(qP),但超过一定范围,则导致qP下降。肥料与密度因子互作效应分析表明,蒙啤麦5号抽穗期F_m的理论值最高,为935.089,相应栽培方案为施氮(N)108.37 kg·hm^(-2)、施磷(P_2O_5)122.11 kg·hm^(-2)、施钾(K_2O)78.43 kg·hm^(-2)、种植密度639.57万株·hm^(-2);F_v/F_m的理论最高值为0.79,相应栽培方案为施氮(N)103.77 kg·hm^(-2),施磷(P_2O_5)113.92 kg·hm^(-2),施钾(K_2O)70.00 kg·hm^(-2),种植密度560.65万株·hm^(-2);qP的理论最高值为0.708,相应栽培方案为施氮(N)103.38 kg·hm^(-2),施磷(P_2O_5)113.86 kg·hm^(-2),施钾(K_2O)70.00 kg·hm^(-2),种植密度563.04万株·hm^(-2)。本研究为内蒙古东部灌区春大麦生产实践提供了最优栽培技术方案。The change of chlorophyll fluorescence parameters of spring barley under the interaction of fertilizer and density was studied using Mengpimai 5 as materials by orthogonal regression experiment in order to reveal the mechanism of fertilization and planting density on the photosynthesis of barley. The results showed that increasing nitrogen, potassium fertilizer and planting density could increase the maximum fluorescence yield（Fm） of barley under a certain range, but it decreased due to more than a certain range. Increasing the nitrogen and phosphorus fertilizers and planting densities can effectively improve the maximum photochemical efficiency（Fv/Fm）, but the Fv/Fm decreases beyond a certain range. The addition of nitrogen, phosphorus and potassium fertilizers can effectively improve the photochemical quenching coefficient（qP）, but more than a certain range, the qP decreased. The effect of fertilizer and density factor interaction was analyzed.The results showed that in heading date of Mengpimai 5, Fm′s theoretical maximum is 935.089 when the amount of fertilizer was nitrogen（N） 108.37 kg· hm^-2, Phosphorus（P2O5） 122.11 kg· hm^-2, potassium（K2O） 78.43 kg· hm^-2 and the planting density 6 395 700 plant· hm^-2. Fm′s theoretical maximum is 935.089 when the amount of fertilizer was nitrogen（N） 108.37 kg· hm^-2, Phosphorus（P2O5） 122.11 kg· hm^-2, potassium（K2O） 78.43 kg· hm^-2 and the planting density 6 395 700 plant· hm^-2. The theoretical maximum of Fv/Fm is 0.79 when the amount of fertilizer was nitrogen（N） 103.77 kg· hm^-2, Phosphorus（P2O5） 113.92 kg· hm^-2, potassium（K2O） 70.00 kg· hm^-2 and the planting density 5 606 500 plant· hm^-2. The theoretical maximum of qP is 0.708 when the amount of fertilizer was nitrogen（N） 103.38 kg· hm^-2, Phosphorus（P2O5） 113.86 kg· hm^-2, potassium（K2O） 70.00 kg· hm^-2 and the planting density 5 630 400 plant· hm^-2. The results can provide the best cultivation technology for the production of spring

关 键 词：大麦 肥料 密度 光合作用 

分 类 号：S512.3[农业科学—作物学]