肥料与密度对春大麦干物重和产量的影响  

Effect of Fertilizer and Density on Dry Weight and Yield of Spring Barley

作　　者：薛海楠 王磊[1] 李国兴 德木其格 徐寿军[1] XUE Hai-nan;WANG Lei;LI Guo-xing;Demuqige;XU Shou-jun(College of Agriculture,Inner Mongolia University for Nationalities,Tongliao 028043,China)

机构地区：[1]内蒙古民族大学农学院,内蒙古通辽028043

出　　处：《内蒙古民族大学学报（自然科学版）》2018年第3期225-231,共7页Journal of Inner Mongolia Minzu University：Natural Sciences

基　　金：国家自然科学基金项目(31760357;31360307)

摘　　要：以大麦新品种"蒙啤麦5号"为试验材料,研究了氮、磷、钾肥与密度互作对春大麦干物重和籽粒产量的影响.结果表明,在一定范围内,大麦干物重随施氮量的增加而增加,合理的施肥量与种植密度对大麦产量也有显著增产效果.本试验研究得出该品种大麦抽穗期干物重理论最大值为14499.67 kg/hm^2,相应的栽培措施是N 110.19 kg/hm^2、P_2O_5124.88 kg/hm^2、K_2O 77.29 kg/hm^2、密度594.53万株/hm^2.大麦籽粒产量理论最大值为6046.38 kg/hm^2,相应的栽培措施是N 108.92 kg/hm^2、P_2O_5124.63 kg/hm^2、K_2O 80.51 kg/hm^2、密度631.36万株/hm^2.The effects of nitrogen,phosphorus,potassium fertilizer and density on dry matter weight and grain yield of a new barley variety＂Mengpimai 5＂were determined. In a certain range,the dry weight of barley increased with the increase in the amount of nitrogen applied. Reasonable fertilizer application and planting density also had a significant effect on barley production. The theoretical maximum value of dry matter weight at the heading stage of this variety of barley was found to be Ymax=14499.67 kg/hm^2,the corresponding cultivation measures N 110.19 kg/hm^2,P2O5124.88 kg/hm^2,K2O 77.29 kg/hm^2,and the density 594.53 Million/hm^2. The maximum barley yield theory was found to be Ymax=6046.38 kg/hm^2,the corresponding cultivation measures N 108.92 kg/hm^2,P2O5124.63 kg/hm^2,K2O 80.51 kg/hm^2,and density 631.36 Million/hm^2.

关 键 词：大麦 施肥水平 密度 干物重 产量 

分 类 号：S512.3[农业科学—作物学]