不同施氮量对辣椒生长及落花的影响  

Effects of Different Nitrogen Application Amount on Growth and Flower Drop of Pepper

作　　者：朱琴[1] 莫邦兰[1] 张恩让[1] 

机构地区：[1]贵州大学农学院园艺系,贵州贵阳550025

出　　处：《贵州农业科学》2008年第1期114-115,共2页Guizhou Agricultural Sciences

基　　金：贵州大学SRT项目"花溪辣椒落花落果的研究"[贵学SRT字(2006)126];贵州省科技厅项目"贵州主要地方辣椒品种高产栽培和田间管理技术研究与示范"[黔科合NE字(2005)3010-23-1]

摘　　要：以花溪辣椒为试材,试验设置了5个施氮水平[每桶分别施纯氮0.0 g3、.0 g6、.0 g(CK)9、.0 g1、2.0 g],以正常施氮水平(每桶施氮6.0 g)为对照,研究了不同施氮量对花溪辣椒的株高、株幅、茎粗及落花的影响。结果表明:辣椒生长前期每桶施纯氮3.0 g水平下的辣椒株高、株幅和茎粗生长协调合理;自中期开始以每桶施纯氮6.0 g水平下(CK)辣椒的株高、株幅和茎粗营养生长和生殖生长协调合理,辣椒落花最轻,表现最好。施氮过多和过少都能导致辣椒株高、株幅和茎粗生长不协调,落花严重。Five nitrogen application amount [0.0 g, 3.0 g, 6.0 g（CK）, 9.0 g, and 12 g/hole] was applied to investigate effects on plant height, plant width, stem diameter and flower drop of Huaxi pepper variety. The results show that the growth under 3.0 g/hole of N application amount is normal at the growth prophase in plant height, plant width and stem diameter and the growth under 6.0 g/hole of N application amount is normal from the growth intermediate stage in plant height, plant width and stem diameter, reproductive development and slightly flower drop, which is the best growth performance in tested treatments.

关 键 词：辣椒 施纯N肥 生长 

分 类 号：S641.3[农业科学—蔬菜学]