| 氮钾配施对玉米产量和土壤钾素的影响 |
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| 引用本文： | 张翔,孙春河等.氮钾配施对玉米产量和土壤钾素的影响[J].中国农学通报,2004,20(6):169-169. |
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| 作者姓名： | 张翔 孙春河等 |
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| 作者单位： | 河南省农科院土壤肥料研究所,郑州,450002 |
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| 基金项目： | 国际钾肥研究所(IPI，瑞士)和中国科学院南京土壤所资助 |
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| 摘 要： | 研究了氮磷钾不同配施条件下,钾肥的效应及土壤钾素的变化,结果表明:玉米施用氮、钾肥有显著的增产作用,氮、钾对玉米的影响程度为:N>K,钾素的盈余随钾肥用量的增加而呈上升趋势,施用钾肥对抑制土壤钾素的下降作用明显。郑州潮土区建议施钾量(K2O)为112.5kg/hm2,驻马店砂姜黑土区建议施钾量(K2O)为150kg/hm2。
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| 关 键 词： | 玉米 钾 土壤钾素 |
Effect of Nitrogenous and Potash fertilizers on Yield of Maize and Soil Potassium |
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| Huangpu Xiang Rong,Zhang Xiang,Sun Chunhe,Bao Dejun.Effect of Nitrogenous and Potash fertilizers on Yield of Maize and Soil Potassium[J].Chinese Agricultural Science Bulletin,2004,20(6):169-169. |
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| Authors: | Huangpu Xiang Rong Zhang Xiang Sun Chunhe Bao Dejun |
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| Abstract: | The study showed effect of nitrogenous and potash fertilizer on yield of maize was significant. The effect level of nitrogenous and potash fertilizer to the yield and economic properties was N>K. The with increase of potassium fertilizer application rates, profit of potassium in soil will rise. Suggesting application rates of potassium fertilizer ought be K2O 112.5 kg/hm2 in zhengzhon Fluvo-aquic soil area and K2O 150 kg/hm2 in zhumadian shajiang black soil area. |
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| Keywords: | Maize Potash Soil potassium |
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