| 沿淮地区氮磷肥配合对水稻产量和肥料利用效率的影响 |
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| 引用本文： | 詹其厚,陈杰,檀满枝,孙志英,王慎强. 沿淮地区氮磷肥配合对水稻产量和肥料利用效率的影响[J]. 土壤通报, 2008, 39(3) |
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| 作者姓名： | 詹其厚 陈杰 檀满枝 孙志英 王慎强 |
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| 作者单位： | 中国科学院南京土壤研究所,土壤与农业可持续发展国家重点实验室,江苏,南京,210008 |
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| 基金项目： | 中国科学院农业项目办公室资助项目 |
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| 摘 要： | 在沿淮变性土区开展了氮磷配合对水稻产量和肥料利用效率影响的田间试验。结果表明,施氮增产28.9%～62.2%,施磷增产4.3%～4.7%,氮磷配合有利于产量和肥料利用效率的提高。通过数学模拟,获得氮磷肥的效应方程,并计算出最大经济施肥量,氮肥为269.5kg hm-2,磷肥为90.4kg hm-2。
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| 关 键 词： | 水稻 氮 磷 产量 肥料利用率 |
Effects of Combined Application of N with P on Rice Yield and Fertilizer Use Efficiency in Huaihe River Valley |
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| ZHAN Qi-hou,CHEN Jie,TAN Man-zhi,SUN Zhi-ying,WANG Shen-qiang. Effects of Combined Application of N with P on Rice Yield and Fertilizer Use Efficiency in Huaihe River Valley[J]. Chinese Journal of Soil Science, 2008, 39(3) |
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| Authors: | ZHAN Qi-hou CHEN Jie TAN Man-zhi SUN Zhi-ying WANG Shen-qiang |
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| Abstract: | A field experiment was carried out to study the effects of N combined with P on rice yield and fertilizer use efficiencies in the Huaihe rive valley.The results showed that applying N and P increased rice yield by 28.9-62.2% and 4.3-4.7% respectively,and N combined with P could improve fertilizer use efficiencies.N and P effective equation formulas were obtained by mathematics simulation,figuring the suitable rates of N and P of 269.5kg hm-2 and 90.4 kg hm-2 respectively. |
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| Keywords: | Rice N P Yield Fertilizer use efficiency |
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