| 不同类型肥料对甘薯产量和氮效率的影响 |
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| 引用本文： | 马洪波,吴建燕,李传哲,许仙菊,张永春.不同类型肥料对甘薯产量和氮效率的影响[J].中国农学通报,2017,33(35):107-112. |
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| 作者姓名： | 马洪波 吴建燕 李传哲 许仙菊 张永春 |
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| 作者单位： | 江苏省农业科学院农业资源与环境所/农业部江苏耕地保育科学观测实验站,南京农业大学,南京农业大学,江苏省农业科学院农业资源与环境所/农业部江苏耕地保育科学观测实验站,江苏省农业科学院农业资源与环境所/农业部江苏耕地保育科学观测实验站;南京农业大学 |
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| 基金项目： | 现代农业产业技术体系“甘薯产业体系岗位科学家”(cars-11-b-15)；农业部植物营养与肥料学科群开放基金“心连心肥料对小麦水稻产量 的影响”(APF2015037)；江苏省农业科技自主创新资金项目“谷氨酸促进甘薯膨大的机制研究”(6111634)；江苏省农业科技自主创新资金项目“紫甘 薯品种的选育及产业化应用”[CX(14)2005]。 |
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| 摘 要： | 为了找到比较适合甘薯增产的肥料,采用田间小区试验的方法,在投入等量氮磷钾养分情况下,比较4种不同类型肥料(施可丰复合肥、土壤所包膜肥、金正大包膜肥、史丹利复合肥)的氮肥效率,以无氮处理、普通尿素、习惯施肥为对照。结果表明:施可丰复合肥对甘薯的增产效果明显,产量达到29940 kg/hm2,显著高于无氮处理、普通尿素处理(P0.05),与习惯施肥相比增产8.92%,另外,收获时氮肥利用率最高,pH值降低小,在甘薯吸氮量最高时,施可丰复合肥氮素释放最高,符合甘薯的氮肥吸收规律,在甘薯生产上是值得推荐的。
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| 关 键 词： | 新型肥料、释放特征、甘薯产量、氮效率 |
| 收稿时间： | 2016/11/4 0:00:00 |
| 修稿时间： | 2017/3/21 0:00:00 |
Effect of Different Types of Fertilizers on Sweet Potato Yield and Nitrogen Efficiency |
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| Abstract: | To select fertilizer which can increase the yield of sweet potato, the field method was tested. Under the equal inputs of nitrogen, phosphorus and potassium, efficiency of nitrogen fertilizer of the four different types of fertilizer (Shikefeng compound fertilizer, Turangsuo coated fertilizer, Jinzhengda coated fertilizer, Shidanli compound fertilizer) were compared. No nitrogen treatment, urea and conventional fertilization were regarded as control. The results showed that the Shikefeng compound fertilizer increased sweet potato yield significantly (p<0.05) and its yield was 1996kg/667m2, more than the conventional fertilization by 8.92%. The nitrogen use rate of Shikefeng was the highest at harvest time, pH declined the lowest. When nitrogen absorption of sweet potato was the highest, nitrogen release of Shikefeng compound fertilizer was the highest, conforming to the nitrogen absorption rule of sweet potato. So Shikefeng compound fertilizer is worthy of recommendation in sweet potato production. |
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| Keywords: | new fertilizer release characteristics sweetpotato yield N use efficiency |
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