基于正交试验的高淀粉甘薯新品种川薯217优化栽培技术研究  

Research on Optimal Cultivation Technique of High Starch Sweet Potato Variety Chuanshu 217 Based on Orthogonal Experiment

作　　者：屈会娟[1] 沈学善[2] 黄钢[3] 阎文昭[1] 王大一[4] 谭文芳[4] 李明[1] 吴洁[1] 

机构地区：[1]四川省农业科学院生物技术核技术研究所,四川成都610066 [2]四川省农业科学院土壤肥料研究所,四川成都610066 [3]四川省农业科学院,四川成都610066 [4]四川省农业科学院作物研究所,四川成都610066

出　　处：《西南农业学报》2012年第6期1995-1999,共5页Southwest China Journal of Agricultural Sciences

基　　金：四川省科技支撑计划项目("十二五"省农作物及畜禽育种攻关);四川省财政基因工程专项资金计划项目(2012QNJJ-001)

摘　　要：采用五元二次正交旋转回归组合设计方法,研究栽插密度、栽插期、氮素水平、磷素水平和钾素水平对川中丘陵区高淀粉甘薯新品种川薯217鲜薯产量的影响。结果表明:5种栽培因素对川薯217鲜薯产量的影响顺序为氮素水平>钾素水平>磷素水平>密度>栽插期,在较大栽插密度,适宜栽插期,充足氮肥的前提下,增施磷钾肥可获得高产。川薯217的高产综合配套栽培措施:密度57 750～60 255株/hm2,6月3日～6月5日栽插,施纯N 56.44～61.56 kg/hm2,P2O5 36.8～43.2 kg/hm2,K2O 53.79～66.21 kg/hm2,可获得37 500 kg/hm2以上的鲜薯产量。In this experiment, the effects of transplanting density, transplanting period, nitrogen, phosphorus and potassium on the fresh potato yield of high starch sweet potato variety Chuanshu 217 in the hilly region of middle Siehuan were studied with orthogonal experiment by a quadrotic, orthogonal and pivoting regression for five factors. The result showed that the influence of five factors on the fresh potato yield of ＇ Chuanshu 217＇ was in order of nitrogen, potassium, phosphorus, transplanting density and transplanting period. To gain high fresh potato yield, the certain transplanting density, ample nitrogen and increasing phosphorus and potassium were needed. The optimal agronomic conditions were described as follows ： transplanting density was 57 750 - 60 255 planta/hm^2, transplanting period was 6/3 to 6/5, applying pure nitrogen 56.44 -61.56 kg/hm^2, P2O5 36.8 -43.2 kg/hm^2, K20 53.79 -66.21 kg/hm^2, and then the high yields of flesh sweet potato above 37 500 kg/hm^2 were obtained in the hilly region of middle Siehuan.

关 键 词：甘薯 川薯217 优化栽培技术 正交试验 

分 类 号：S531[农业科学—作物学]