磷素对甜瓜幼苗质量的影响  

Effect of Phosphorus on the Quality of Muskmelon Seedling

作　　者：李欣[1] 谢秀芳[1] 黄超[1] 李莹[1] 李雪微[1] 张波[1] 廉华[1] 

机构地区：[1]黑龙江八一农垦大学农学院,黑龙江大庆63319

出　　处：《黑龙江农业科学》2015年第4期22-26,共5页Heilongjiang Agricultural Sciences

基　　金：黑龙江八一农垦大学校级大学生创新训练计划资助项目(xc2014002);黑龙江省教育厅科技资助项目(12531454)

摘　　要：为在甜瓜生产中合理地施用磷素,以金妃甜瓜为材料,采用基质培方法,通过测定甜瓜株高、茎粗、叶绿素含量、根系活力、单株鲜重、单株干重的变化规律研究不同磷素用量对甜瓜幼苗质量的作用效应。结果表明：适宜磷素用量（即0.9-1.2mmol·L-1）时,对幼苗质量促进作用最强,可以显著促进株高和茎粗增加,提高叶绿素含量和根系活力,增加单株鲜重和单株干重。当磷素用量低于0.6mmol·L-1或高于1.5mmol·L-1时,各项指标均显著下降。In order to explore the reasonable application of phosphorus element on muskmelon,taking muskmelon Jinfei as experimental material,the way of substrate culture was adopted to measure the change regular of plant height,stem diameter,chlorophyll content,root activity,single plant fresh weight and single plant dry weight.The results showed that appropriate dosage of phosphorus element（0.9~1.2mmol·L-1）could promote the quality of muskmelon seedling through promoting plant height and stem diameter,improving chlorophyll content and root activity,increasing single plant fresh weight and single plant dry weight.When the phosphorus dosage was less than 0.6mmol·L-1 or higher than 1.5mmol·L-1,all the indexes decreased significantly.

关 键 词：磷素 甜瓜 幼苗质量 

分 类 号：S652[农业科学—果树学]