披碱草不同无土基质对比试验研究  

Contrast Test on Different Soilless Media for Elymusdahuricus turcz.

作　　者：杨浩[1] 王百田[2] 武晶 王婷[2] 岳征文[2] 

机构地区：[1]北京市园林绿化局十三陵林场,北京100041 [2]北京林业大学水土保持学院,北京100083 [3]中铁工程设计咨询集团有限公司太原分院,山西太原030009

出　　处：《江西农业大学学报》2012年第5期983-987,共5页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家"十二五"科技支撑计划项目(2011BAD38B0602);国家"十一五"科技支撑计划项目(2006BAD03A0301)

摘　　要：利用腐殖质、枯树叶、草炭、草木灰作基质代替土壤进行无土栽培试验,研究抗盐碱多年生牧草——披碱草在不同生长基质中的生长情况及应用效果。测定披碱草株高、叶长、分蘖数、总根长、生物量等指标,并进行分差分析和多重比较。最后通过主成分分析法,并借助误差条图,初步筛选出适合于披碱草生长的基质配方。结果表明:不同配方之间,株高、根长、生物量之间差异极显著,叶长、分蘖数之间差异不显著。枯树叶与草木灰3∶2组合时,配方中加入草炭要优于腐殖质。用主成分函数表达式建立评价体系,基质综合得分为:基质A3>基质A4>基质A1>基质A2,草炭、枯树叶、草木灰以5∶3∶2体积混合配方效果最佳。In order to study the ameliorating effect of different soilless media on Elymusdahuricus turcz. , four media were made of humus, withered leaves, peat, and plant ash in different volume ratios. The height, leaf length, tiller, root length, and biomass of Elymusdahuricus turcz, were measured. The eigenvalues and component of growth indexes were analyzed to search for the best medium. The results showed hat ： （ 1 ） The height, root length, and biomass had marked differences in statistics, but the leaf length, and tiller had little differences. When withered leaves and plant ash were mixed with the ratio of 3： 2, partnerpeat was better than humus. The evaluation function based on principal component analysis showed the order of the quality of them：A3 〉 A4 〉 A1 〉 A2.

关 键 词：披碱草 无土栽培 因子分析 评价 

分 类 号：S543.9[农业科学—作物学]