摘要
采用三因素二次通用旋转组合设计方案对甘薯新品种龙薯10号进行了施肥试验研究.结果表明:在中等肥力以下的土壤上,氮肥、钾肥对龙薯10号的鲜薯产量影响较大,要特别重视施用钾肥,适当施用氮肥和磷肥.在中等以上肥力土壤上,要控制氮、磷肥的使用,适当施用钾肥.龙薯10号鲜薯产量大于2500 kg/667m2的优化施肥方案是:尿素6.22～13.96 kg/667m2、过磷酸钙23.09～53.27 kg/667m2、硫酸钾24.74～50.05 kg/667m2.
Adopting three-factors quadratic general rotary unitized design,the experimental study on the application of N,P and K fertilizer for sweet potato new variety 'Longshu 10' was carried out.The result indicated that under the low-medium fertility condition,the nitrogen fertilizer and potassium fertilizer had great influence on fresh-tuber yield of Longshu 10,so it was necessary to emphatically apply potassium fertilizer,appropriately apply nitrogen fertilizer and phosphorus fertilizer.In the field with medium-high fertility,it was needed to control the application of nitrogen fertilizer and phosphate fertilizer,and properly apply potassium fertilizer.The optimized fertilization scheme for obtaining more than 2500 kg/667m2 fresh-tuber yield of Longshu 10 was as follows: applying urea 6.22~13.96 kg/667m2,calcium superphosphate 23.09~53.27 kg/667m2 and potassium sulfate 24.74~50.05 kg/667m2.
出处
《江西农业学报》
CAS
2010年第12期75-78,共4页
Acta Agriculturae Jiangxi
基金
国家科技支撑计划项目"高产优质专用甘薯育种技术研究及新品种选育"
国家公益性行业科研项目"甘薯标准化栽培技术研究"(nyhyzxo7-12)
国家甘薯产业体系项目"龙岩综合试验站建设"(nycytx-16-c-4)
