摘要
选择扦插密度、尿素用量和硫酸钾用量为试验因子,采用二次饱和D-最优设计布置田间参数试验。建立了浙薯13产量和净产值回归方程,优化并提出了供试农艺因子组合方案:扦插密度3 300-3 600株/667m2;追肥尿素用量20-24 kg/667m2,基肥硫酸钾用量20-25 kg/667m2。
The test used stem planting density, N fertilizer rates, and K fertilizer rates as experimental factors and arranged field experimental parameters by using quadratic sattrration D optimum design method. Regression equations of yield and net output value were respectively established. The results showed that optimum experimental factors as follows：the planting density was 3 300- 3 600 plants/667m^2; topdressing rates of urea were 20 - 24 kg/667m^2; basal manure rates of K2SO4 were 20- 25 kg/667m^2.
出处
《浙江农业学报》
CSCD
2007年第1期55-59,共5页
Acta Agriculturae Zhejiangensis
关键词
甘薯
浙薯13
扦插密度
施肥技术
二次饱和D-最优设计
sweet potato
Zheshu 13
stem planting density
fertilization technology
quadratic saturation D optimum design
