超级稻不同叶龄、密度对比试验  

Comparison of Different Leaf Ages and Planting Densities for Super Rice

作　　者：俞开启 

机构地区：[1]福建省长汀县农技站,福建长汀366300

出　　处：《福建稻麦科技》2010年第1期15-17,共3页Fujian Science and Technology of Rice and Wheat

摘　　要：对超级稻Ⅱ优航2号进行不同叶龄和插植密度试验。结果表明,3.5叶龄用26.4cm×26.4cm的密植,5.0叶龄用17.8cm×17.8cm、23.1cm×23.1cm和26.4cm×26.4cm均可达到较好的产量水平。在生产上选择5.0叶龄插秧较为适宜;各密植规格之间差异不显著,应依据栽培条件、品种特性水平而适当选择其中一种密植规格。Different leaf ages and planting densities of super rice Ⅱ You Hang No.2 were studied. The results showedthat higher yield levels could all be achieved at a hill spacing of 26.4cm × 26.4cm with 3.5-leaf-old seedling, or a hillspacing of 17.8cm × 17.8cm, 23.1cm × 23.1cm,26.4cm × 26.4cm with 5-leaf-old seedling. The more suitabe transplanting leaf age on rice production was 5-leaf-old seedling. There were no differences in grain yield among various planting densities. We should select one of the planting densities according to cultivation conditions and varietal charcteristics.

关 键 词：超级稻Ⅱ优航2号 移栽叶龄 插植密度 产量 

分 类 号：S511.048[农业科学—作物学] S318