| Effects of optimum mixed fertilization on yield of alfalfa in irrigation area of Yellow River in south Ningxia |
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| DOI：10.7606/j.issn.1000-7601.2006.05.12 |
| Key Words: alfalfa fertilizer application 3-factors optimum design irrigation area of Yellow River |
| Author Name | Affiliation | | WANG Feng | Desert Institute Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan 750002,China | | WEN Xue-fei | Desert Institute Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan 750002,China | | MA Ming | Ningxia Development and Reform Committee,Yinchuan 750001,China | | ZOU Jun | Ningxia Development and Reform Committee,Yinchuan 750001,China | | YANG Cai-xia | Ningxia Development and Reform Committee,Yinchuan 750001,China |
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| Abstract: |
| The 3-factors optimum design experiment was conducted to investigate the dynamic relation between different levels and combinations of nitrogenous, phosphate and potassium fertilizers and yield of alfalfa.The results showed that the influence of phosphate fertilizer to yield was the largest, that of nitrogenous fertilizer was the second, and that of potassium fertilizer was the smallest.The optimum range of alfalfa yield was larger than 850 kg/667 m2.In the 63 sets of scheme under test condition, the agronomic measures for the yield of more than 850 kg/667m2 was: nitrogenous fertilizer 5.524～7.805 kg/667m2, phosphate fertilizer 10.86～(12.856) kg/667m2, and potassium fertilizer 0.583～3.749 kg/667m2. |
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