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机构地区:[1]台州科技职业学院,浙江黄岩318020 [2]天台县农业局,浙江天台317200 [3]浙江省农业科学研究院,杭州310021
出 处:《科技通报》2007年第3期382-385,共4页Bulletin of Science and Technology
摘 要:研究选择了浙秋豆3号的播种期、种植密度和尿素用量为试验因素,采用二次饱和D-最优设计,布置田间参数试验,分别研究、建立了浙秋豆3号产量和净产值回归方程,优化提出了供试农艺因子组合方案:播种期7月上旬适期播种,种植密度1.8万株/666.7m2左右,追肥尿素用量7~8kg/666.7m2。In this study the regression equation of yield and output value for sutumn soybean "Zheqiu Soybean 3" was to be established by employing the D-optimal design method of quadratic saturation. The three tested parameters including sowing date,planting density and the amount of urea application were analyzed. The results indicated that the optimal agronomic scheme was the combination of early july for sowing data,18 thousand plants per 666.7 m^2 for planting density and 7-8 kg urea per 666.7 m^2 for supplemented fertilizer, which was the best optimization for both yield and net output Value.
分 类 号:S318[农业科学—作物栽培与耕作技术]
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