不同基质与施肥水平对黑麦草叶绿素及根系生长情况的影响  

Effects of Different Substrates and Fertilizer Levels on Lolium perenne Chlorophyll and Root Growth

作　　者：蔡艳蓉[1] 高照良[1,2] 赵晶[1] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨凌712100 [2]中国科学院水利部水土保持研究所生态工程技术研究中心,陕西杨凌712100

出　　处：《水土保持研究》2011年第4期157-159,165,共4页Research of Soil and Water Conservation

基　　金：陕西省水土保持局项目"线状工程建设水土流失防治技术示范推广研究"(sxsb08007)

摘　　要：以多年生黑麦草为试材,研究了7种基质配比、3种施肥量下对黑麦草的叶绿素含量、根系生长情况的影响。结果表明:不同基质对多年生黑麦草叶绿素含量影响显著;随着施肥量的增加黑麦草叶绿素含量呈先增加后减少的趋势,施肥水平对黑麦草叶片叶绿素含量的影响不大,不同基质对多年生黑麦草的根长发育影响显著,不同施肥水平对黑麦草的根长影响不大,不同基质对黑麦草根系活力影响显著,不同施肥水平对黑麦草根系活力没有显著影响,在A3施肥水平时,Ⅴ号、Ⅵ号和Ⅶ号基质黑麦草根系活力远远高于其他基质的处理。Ⅶ号基质结合A3施肥水平下,黑麦草生长最好,为黑麦草的首选基质和施肥水平组合。The effects of seven types of substrates,three fertilizer level on ryegrass chlorophyll content and root growth situation with the Lolium perenne to find its suitable substrates and fertilizer levels were examined.The results showed that：impact of substrates on the chlorophyll content of ryegrass was significant;with the increase of fertilizer,chlorophyll content of ryegrass increased firstly and then decreased,impact of fertilization on chlorophyll content of ryegrass was not significant;impact of substrates on root length of ryegrass was significant;fertilization level had little effect on ryegrass root length;substrates effected ryegrass root activity significantly;impact of fertilization on ryegrass root activity was not significant.In the A3 fertilization application,the ryegrass root activity in substrates of NO.Ⅴ,Ⅵ,Ⅶ was much higher than in other substrates.The best combination of substrates and fertilizer levels for the Lolium perenne is combining substrates of NO.Ⅶ with fertilizer levels of A3.

关 键 词：基质 叶绿素 根系活力 

分 类 号：Q945[生物学—植物学]