不同硝铵比对韭菜生长及叶绿素含量的影响  

Effects of Different Nitrate and Ammonium Ratio on Growth and Chlorophyll Content of Alliumtuberosum Rottler

作　　者：罗未蓉[1] 孙涌栋[1] 刘会超[1] 魏志发[1] 钟永娟[1] 

机构地区：[1]河南科技学院园艺园林学院,河南新乡453003

出　　处：《北方园艺》2013年第15期28-30,共3页Northern Horticulture

基　　金：河南省创新人才工程资助项目(2005-126-49)

摘　　要：以"赛松"、"平韭四号"和"平韭八号"3个韭菜品种为试材,采用水培方法,研究了14mmol/L的氮素水平条件下,不同硝铵比(25∶75、50∶50、75∶25和100∶0)的改良Hoagland营养液处理对3个韭菜品种生长及叶绿素含量的影响。结果表明:随着营养液中硝态氮浓度的增加,3个韭菜品种的叶长、叶宽、单叶鲜重和叶绿素含量呈现先增加后下降趋势,硝铵比为50∶50的改良Hoagland营养液处理显著促进了3个韭菜品种的生长,该营养液适合韭菜水培。Taking three varieties of Allium tuberosum Rottler＇ Saisong＇, ＇ Pingiiu 4＇, ＇ Pingjiu 8＇ as materials, the effects of different nitrate and ammonium ratio on growth and chlorophyll content of AUium tuberosum Rottler investigated under hydroponics on 14 mmol/L nitrogen level. The results showed that with proportion of the NOa--N increased, the leaf length,leaf width, single leaf weight and chlorophyll content increased then decreased in the three varieties. The NO3- -N and NH4 ＋-N treatment of 50 ＂ 50 promoted the growth and was more suitable for Alliurn tuberosum Rottler growth.

关 键 词：韭菜 硝铵比 生长 叶绿素含量 

分 类 号：S633.3[农业科学—蔬菜学]