不同浓度氮素对翠菊幼苗质量的影响  

Effect of Different Concentrations of Nitrogen on the Quality of China-aster Seedlings

作　　者：王永红 侯建伟[2] 

机构地区：[1]长春市农业学校,吉林长春130102 [2]吉林农业大学园艺学院,吉林长春130118

出　　处：《北方园艺》2010年第1期120-121,共2页Northern Horticulture

基　　金：吉林省科技厅科技支撑计划资助项目(20060222-2)

摘　　要：以硝酸钙为氮源,采用单因素随机区组试验设计,设5个氮素浓度,研究氮肥对翠菊幼苗生长的影响。结果表明:硝酸钙用量为125 mg/kg基质时,翠菊幼苗的干重与其它处理间呈极显著差异;硝酸钙用量在1001、25 mg/kg基质水平时,翠菊幼苗的茎粗达到最大值;硝酸钙用量水平为125 mg/kg基质的处理壮苗指数达到最大;氮素用量对翠菊幼苗植株高度影响不明显。With calcium nitrate as nitrogen source, using single-factor randomized block experiment design, set up five nitrogen levels to study the nitrogen of the aster （Callistephus chinensis（L. ） Nees） seedling growth. The results showed that：calcium nitrate dosage of 125 mg/kg substrate,the aster seedling dry weight with other treatments had a very signif icant difference; The stem diameter reached maximUm with calcium nitrate consumption in the 100 mg/kg substrate,and 125 mg/kg substrate level,aster strong seedling index reached the maximum with calcium nitrate dosage level of 125 mg/ kg substrate handling; Aster seedling plant height was not obvious on nitrogen quantity.

关 键 词：翠菊 氮素 幼苗 

分 类 号：S681.906.2[农业科学—观赏园艺]