富硒植物营养素对桂东山区夏甜玉米产量及硒含量的影响  

Effects of Se-nutrient Sprayed on the Grain Yield and the Se-content of Summer Sweet Corn in Guidong Region

作　　者：罗连光 郭亚飞 杨勇[3] 李婷婷 

机构地区：[1]湖南省农业生物资源利用研究所,长沙410125 [2]桂东县农业局粮油站,湖南桂东423500 [3]湖南农业大学资源环境学院,长沙410128 [4]长沙福山农业科技公司,湖南长沙410000

出　　处：《作物研究》2013年第4期310-313,共4页Crop Research

基　　金：湖南省农业综合开发办资助项目(2011-08(1))

摘　　要：通过小区对比试验,研究富硒植物营养素对高寒山区夏甜玉米植物学性状、经济性状、经济效益、外观品质、硒含量等方面的影响。结果表明:在玉米灌浆前期,叶面喷施富硒植物营养素,叶片保绿度大幅增加,鲜苞重和鲜穗重分别增加26.5%和24.0%,鲜粒重达到170 g,增幅达到43.9%,出籽率和百粒重分别增加了16.0%和28.7%;玉米硒含量达到0.17 mg/kg,达到富硒标准。A field experiment was conducted to study the effects of foliage spraying selenium-nutrients on the botanical characteristics,economic characteristics,economic benefits,exterior quality and the Se-content of summer sweet corn in alpine region.The results showed that spraying selenium-nutrient in the early filling stage,the grain yield and Se-content improved obviously,and the similar results were found in botanical characteristics and economic benefits.The leaf stay-green increased by a big margin,and the weight of fresh bract and fresh ear increased by 26.5% and 24.0%,and the fresh kernel weight reached 170 g,and the growth rate reached 43.9%,the rate of seed and 100-seed weight increased by 16.0% and 28.7%;Selenium content in corn is 0.17 mg / kg,which reached the standard of selenium-rich.In short,selenium-nutrient sprayed had comprehensive advantages in summer sweet corn.

关 键 词：玉米 栽培 富硒植物营养素 

分 类 号：S513.062[农业科学—作物学]