| 干旱区马铃薯测土配方施肥试验研究 |
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| 引用本文： | 李伟,李继明,赵丽娟.干旱区马铃薯测土配方施肥试验研究[J].中国马铃薯,2009,23(5):274-276. |
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| 作者姓名： | 李伟 李继明 赵丽娟 |
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| 作者单位： | 甘肃省定西市安定区农业技术推广中心,甘肃,定西,743000 |
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| 摘 要： | 合理施肥是发挥马铃薯生产潜力的重要措施之一,干旱区域其施肥技术尤为重要。通过试验,研究了马铃薯产量与氮、磷、钾最佳施用量之间的关系,建立了马铃薯产量(Y)与氮肥(N)、磷肥(P)、钾肥(K)之间的回归方程,得出安定区马铃薯每公顷最佳施氮量为(N)203.48kg,施磷量(P2O)5908.75kg,施钾量(K2O)217.27kg,此时马铃薯产量预报值为15941.55kg,最佳施肥量比例为1:4.47:1.07。试验结果为干旱区马铃薯测土配方施肥技术提供了理论依据。
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| 关 键 词： | 马铃薯 回归方程 最佳施肥量 |
Fertilization of Potato in Drought Area Based on Soil Testing |
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| Li Wei,Li Jiming,Zhao Lijuan.Fertilization of Potato in Drought Area Based on Soil Testing[J].Chinese Potato,2009,23(5):274-276. |
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| Authors: | Li Wei Li Jiming Zhao Lijuan |
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| Abstract: | The relationship of the potato production with nitrogen, phosphorus and potassium fertilizer was studied in this research to establish the regression equation of a nitrogen(N), phosphorus(P) and potassium(K) fertilizer with the potato output (Y). The result showed that the best fertilization rate in potato was N 203.48 kg·hm-2, P2O5 908.75 kg·hm-2, and K2O 217.27 kg·hm-2, at which the prediction value of production would be 15 941.55 kg·hm-2, and the best fertilizer ratio was 1: 4.47: 1.07. |
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| Keywords: | potato regression equation application rate |
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