摘要
采用三元二次正交旋转组合设计的方法,研究了种植密度和磷、钾肥施用量对高淀粉甘薯品系"0409-17"产量和淀粉的影响.结果表明,在种植密度为47 325~53 820株/hm2、施过磷酸钙(含P2O512%)115.5~367.5 kg/hm2、施氯化钾(含K2O 60%)27~226.5 kg/hm2的栽培模式下,能充分发挥该品系高产和高淀粉的潜力,甘薯鲜薯产量超过22 536.15 kg/hm2、淀粉产量超过5 679.3 kg/hm2.
The quadratic orthogonal rotation combination design was used to study the effects of P and K fertilizer rates and planting density on the yield of the high-starch sweetpotato line 0409-17.The results showed that the cultivation model with a planting density of 47 325-53 820 plants/hm2,a P rate of 115.5-367.5 kg/hm2 of superphosphate calcium(12% P2O5) and a K rate of 27-226.5 kg/hm2 of potassium chloride(60% K2O) realized the potential of high tuber and starch yield of 0409-17,the fresh tuberous root yield and starch yield being 22 536.15 kg/hm2 and 5 679.3 kg/hm2,respectively.
出处
《西南大学学报(自然科学版)》
CAS
CSCD
北大核心
2011年第2期12-16,共5页
Journal of Southwest University(Natural Science Edition)
基金
重庆市十一五动植物良种创新工程项目(CSTS2010AB1053)
重庆市甘薯工程技术研究中心建设项目资助
关键词
甘薯
栽培模式
鲜薯产量
淀粉产量
sweetpotato
planting pattern
fresh tuberous root yield
starch yield