摘要
采用三元二次正交旋转组合设计,研究行距、密度、施氮量与玉米新品种晋单65号产量之间的关系,建立了数学模型,通过分析寻优得出11 777 kg/hm2以上产量水平的栽培措施组合方案是:行距55 cm,密度47 385株/hm2,纯N施用量415 kg/hm2(按尿素的46%折算纯N)。
The effects of row spacing,density and nitrogen rate on the yield of maize variety Jindan 65 were studiod with the application of ternary quadraticor thogonal regress ionrotary combination design.The math ematical model between the main cultivation technology and the output index was established.By computer simulating and optimizing,the optimal combinational scheme and high yield cultivation model for yield above 11 777 kg/hm2 of Jindan 65 were proposed ,namely the row spacing was 55 era,the density was 47 385 the plants/hm2,the pure nitrogen rate was 415 kgham2 （46% of urea reduced pure nitrogen）
出处
《现代农业科技》
2013年第14期17-18,共2页
Modern Agricultural Science and Technology
基金
山西省青年科技研究基金(2011021032-4)
山西省农业科学院科技攻关项目(YGG1022)
关键词
玉米
晋单65号
栽培技术
施氮量
行距
栽培密度
maize
Jindan 65
cultivation technology
pure nitrogen rate
row spacing
density
