| 芥菜氮磷钾肥效及其施肥指标研究 |
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| 引用本文： | 姚建族.芥菜氮磷钾肥效及其施肥指标研究[J].福建农业学报,2011,26(6):1045-1050. |
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| 作者姓名： | 姚建族 |
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| 作者单位： | 福建省永春县土壤肥料技术站,福建 永春,362600 |
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| 基金项目： | 国家测土配方施肥项目(2008-2011);福建省科技计划项目——省属公益类科研院所基本科研专项(2009R10032-4) |
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| 摘 要： | 通过田间试验研究芥菜氮磷钾肥效及其施肥指标.试验结果表明,土壤对芥菜产量的平均贡献率只有26.3％,施用氮、磷、钾肥平均分别增产55.5％、14.1％和15.3％,平均产投比分别为36.9、21.3和12.2,表明芥菜施用氮磷钾肥料具有显著的增产增收效果.芥菜种植地土壤Olsen-P高产丰缺指标为42 mg· kg-1...
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| 关 键 词： | 芥菜 土壤 氮磷钾 施肥效应 施肥指标 |
Effect and Recommended NPK Fertilization for Mustard Green |
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| YAO Jian-zu.Effect and Recommended NPK Fertilization for Mustard Green[J].Fujian Journal of Agricultural Sciences,2011,26(6):1045-1050. |
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| Authors: | YAO Jian-zu |
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| Institution: | YAO Jian-zu(Yongchun Soil and Fertilizer Station,Yongchun,Fujian 362600,China) |
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| Abstract: | Effect and recommended NPK fertilization for mustard green were studied with field experimentations.Thirty tests were conducted and the results showed that the average rate of soil fertility contributed to the mustard yield was merely 26.3%.The effect of yield increase by individual fertilizers was 55.5%,14.1% and 15.3% for the applied N,P and K,respectively.The fertilization benefits as shown by the output/input ratios were 36.9 and 21.3 and 12.2 for N,P and K,respectively.The result indicated that there was a remarkable effect on yield with the applied fertilizers.Maximum yield was achieved by using Olsen-P and available K at the rate of 42 mg·kg-1 and 88 mg·kg-1,respectively.Optimal application rate and NPK proportion varied for soils of different fertilities.On average,the application rates for the soil of "high fertility grade" were N 315 kg·hm-2,P2O5 85 kg·hm-2 and K2O 146 kg·hm-2;those for the soil of"medium fertility grade" were N 348 kg·hm-2,P2O5 127 kg·hm-2 and K2O 196 kg·hm-2;and,those for the soil "low fertility grade" were N 319 kg·hm-2,P2O5 146 kg·hm-2 and K2O 241 kg·hm-2.The regression equations between the available NPK in soil and fertilizer application rate were established to facilitate proper fertilization according to soil testing results. |
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| Keywords: | Mustard green soil NPK fertilization effect fertilization index |
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