不同覆盖物对无芒隐子草建植的影响  

Effects of different mulching on the establishment of Cleistogenes songorica

作　　者：邰建辉[1,2] 王彦荣[1] 李晓霞[3] 魏学[1] 陈谷[2] 

机构地区：[1]兰州大学草地农业科技学院,甘肃兰州730020 [2]百绿集团,北京100025 [3]中国科学院植物研究所,北京100093

出　　处：《草业学报》2011年第3期287-291,共5页Acta Prataculturae Sinica

基　　金：国家重点研究发展计划(973计划)项目(2007CB108904)资助

摘　　要：覆盖物处理对无芒隐子草建植的影响因土壤干旱条件不同而异,在非干旱条件下(隔5 d灌溉),各处理对建植率的影响差异不显著。但在干旱条件下(隔15 d灌溉),沙覆盖的建植率(40.7%)显著高于其他处理;地膜覆盖(23.6%)与对照(22.2%)无显著差异,但显著高于稻草覆盖(15.9%)。2种灌溉条件下,沙覆盖处理的株高、叶片数、分蘖数、叶面积和地上生物量等都显著高于其他处理和对照。Effects of different mulching on the seedling establishment of Cleistogenes songorica varied with soil water conditions.The mulches showed no effects on seedling establishment when the plants were irrigated every 5 days,but it significantly affected seedling survival rate when the plants were irrigated every 15 days.At 15-day interval irrigation,the seedling establishment rate was the highest（40.7%） under sand mulching and was the lowest（15.9%） under straw mulching.The seedling establishment rate under film mulching（23.6%） was not significantly different from that of the control（22.2%）,but was significantly greater than that under straw mulching（15.9%）.The plant heights,leaf numbers,tiller numbers,leaf areas and aboveground biomasses under sand mulching were significantly greater than those under other treatments.

关 键 词：无芒隐子草 覆盖物 土壤温度 土壤水分 幼苗建植 

分 类 号：S688.4[农业科学—观赏园艺]