甘薯新品种漯徐薯9号优化栽培技术研究  

Study on Optimal Cultivation Technique for New Sweet Potato Cultivar Luoxushu 9

作　　者：张勇跃 刘志坚 秦素研 李建国 

机构地区：[1]漯河市农业科学院,河南漯河462000

出　　处：《山东农业科学》2014年第5期45-48,共4页Shandong Agricultural Sciences

基　　金：国家甘薯产业技术体系项目(CARS-11-C-13)

摘　　要：采用四因素五水平二次正交旋转组合设计，研究了密度、氮肥、磷肥和钾肥4种因素对甘薯新品种漯徐薯9号产量的影响，并构建产量函数模型。结果表明：4种因素对甘薯产量影响的顺序为钾肥＞密度＞磷肥＞氮肥；本试验条件下漯徐薯9号达到45000 kg/hm2以上产量所要求的优化栽培措施是：密度58600-63220株/hm2，尿素138．57-161．43 kg/hm2，过磷酸钙245．39-281．97 kg/hm2，硫酸钾617．85-663．75 kg/hm2。Using rotational quadratic regression design,the effects of plant density and fertilizers of nitro-gen （N）,phosphorus （P）and potassium （K）on yield of new sweet potato cultivar Luoxushu 9 were studied, and the yield function mode was established.The results showed that the order of four factors influencing yield was K〉planting density〉P〉N.In the conditions of this experiment,the optimal cultivation technique for yield of over 45 000 kg/hm2 was planting 58 600 -63 220 plants per hectare,and applying 138.57 -161.43 kg/hm2 of urea,245.39-281.97 kg/hm2 of calcium superphosphate and 617.85 -663.75 kg/hm2 of potas-sium sulphate.

关 键 词：甘薯 漯徐薯9号 优化栽培 

分 类 号：S531.048[农业科学—作物学]