安徽农业科学Issue(14)：6227-6228,6508,3.
甘薯平衡施肥技术研究
Study on Balanced Fertilization of Sweet potato
摘要
Abstract
[Objective] To study the influence of different fertilizer ratio on sweet potato yield,and provide reference for balanced fertilization of sweet potato.[Method] With Xushu 22 as material,non-fertilizer as control,effects of different fertilizer ratio on the growth of aboveground parts,underground parts and the yield were studied.[Result] The results showed that phosphorus (P) and potassium (K) are key fertilizers for the yield of Xushu 22.And in all processing with P and K,such as N + P + K,P + K and the compound fertilizer,the fresh base yield of Xushu 22 was raised at a certain level.With the treatment of P + K,Xushu 22 had the highest fresh base yield.And the yield increased at a significant level,which was 16.03％.The N + P + K treatment followed by 7.04％,while with the N + P treatment,the aboveground parts had excessive growth.[Conclusion] Under the medium fertility soil conditions,in order to have high sweet potato yield,we should pay attention to the mix of P and K,and fertilize no or less nitrogen.关键词
甘薯/平衡施肥/产量Key words
Sweet potato / Balanced fertilization / Yield分类
农业科技引用本文复制引用
丁凡,余金龙,余韩开宗,刘丽芳..甘薯平衡施肥技术研究[J].安徽农业科学,2013,(14):6227-6228,6508,3.基金项目
国家甘薯产业技术体系综合试验站专项资金资助(CARS-11-C-22) （CARS-11-C-22）
四川省"十二五"农作物育种攻关项目(2011NZ0098-4). （2011NZ0098-4）
