“青杂3号”油菜新品种高产栽培优化技术研究  

Study on high-yield cultivating technique for hybrid rape Qingza No.3

作　　者：王瑞生[1] 

机构地区：[1]青海大学农林科学院,青海西宁810016

出　　处：《青海大学学报（自然科学版）》2006年第3期34-36,共3页Journal of Qinghai University(Natural Science)

基　　金：科技部科技攻关(2004BA546C);科技部跨越计划(2004跨12)项目资助

摘　　要：采用二次饱和D-最优设计方案，研究青杂3号产量与种植密度、施肥量之间的关系，建立了各因素与产量指标间的数学模型，确定了青杂3号高产栽培技术优化方案：种植密度50．85～56．85万株，公顷，尿素施用量168．75～199．79kg／hm^2，磷酸二铵施用量444．38～496．13kg／hm^2。各因素对产量的影响程度依次为密度〉磷肥〉氮肥。For seeking the high- yield cultivating technique of B. napus hybrid Qingza No. 3 quadratic regression combination design was used to study quantity relation between yield and main cultivating technique（the density and amount of fertiliver） a mathematical model of the main factors and yield was established. According to the model the suitable density is 5.085 ～ 5.685 × 10^5 plants/hm^2 and the suitable amount of using urea are 168.75 kg/hm^2 and 444.38 ～496.15 kg/hm^2 respectively. The factor order of influencing on yield is the density 〉 P 〉 N.

关 键 词：杂交油菜 丰产栽培 密度 施肥量 优化方案 

分 类 号：S565.4[农业科学—作物学]