内蒙古民族大学学报（自然科学版）Issue(3)：231-234,239,5.
水肥耦合对高冰草干物质积累和生物产量的影响
The Influence of the Water and Nitrogen Integrated Condition to the Agropyron Elonglumon’s Dry Matter Acculmulationunder and Biological Yield
摘要
Abstract
This study was carried on in the farm of Inner Mongolia university for nationalities. In order to analyze the influence of water and nitrogen management to agropyron elonglumon’s dry matter acculmulationunder and biologi-cal yield, deal with the water and nitrogen fertilizer combination for the one year old agropyron elonglumon ,we set three moisture gradients about soil field capacity by 40%, 60%, 80%and 0 kg/hm2, 60 kg/hm2, 120 kg/hm2, 180 kg/hm2, 240 kg/hm2(pure nitrogen)5 nitrogen gradient.(marked by N1,N2,N3,N4,N5), the result showed that the peri-od of dry matter accumulation was short in W1 level, but W2 and W3 level were in contrary. And the period of dry matter accumulation was longer in N1 level than other levels . When we got the biomass in the first time ,W3N3 level get the highest biomass ,the quality is 643.33g/㎡,the quality of W2N4 followed W3N3 level .When the second time we got the biomass ,W2N4 level is in the highest quality ,the number was 613.33g/㎡,W2N3 followed it .But as the analysis for the year around ,the highest biomass is in the level of W2N4,the number is 1227.76/㎡,this number is ob-vious higher than other levels ,and another level W2N3’s number is very nearly to W2N4, W2N3’s number was just lower 3.2%than W2N4.关键词
高冰草/水氮耦合/干物质积累/生物量Key words
Agropyron elonglum/Integrated water and nitrogen management/Dry matter accumulation/Biomass分类
农业科技引用本文复制引用
刘静,张淑艳,徐舶,张庆昕..水肥耦合对高冰草干物质积累和生物产量的影响[J].内蒙古民族大学学报（自然科学版）,2015,(3):231-234,239,5.基金项目
内蒙古自然科学基金项目 （）
