| 安阳褐土潮土钾素变化及增施肥效研究 |
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| 引用本文： | 曾庆芳,邢万明,马国明.安阳褐土潮土钾素变化及增施肥效研究[J].河南农业大学学报,1994(4). |
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| 作者姓名： | 曾庆芳 邢万明 马国明 |
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| 作者单位： | 安阳市农业局 |
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| 摘 要： | 钾素动态研究结果表明，安阳褐土、潮土速效钾含量均呈下降趋势。其中，褐土下降１１×１０￣（－６），潮土下降３７×１０￣６，且不同质地类型及不同农业生态区的土壤下降也不同。同时，作钾肥肥效试验结果表明，在褐土潮土区增施钾肥，不同作物均取得一定的增产效果。
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| 关 键 词： | 褐土潮土 钾素变化 钾肥肥效 |
Potash Status in Calcareous Soil and Effects of Potassium Fertilizer on Crops in the North of Henan |
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| Zeng Qingfang Xing Wanming Ma Guoming.Potash Status in Calcareous Soil and Effects of Potassium Fertilizer on Crops in the North of Henan[J].Journal of Henan Agricultural University,1994(4). |
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| Authors: | Zeng Qingfang Xing Wanming Ma Guoming |
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| Abstract: | The potash status in calcareous soil was studied in the North of Henan. The re-sults indicated that quick-acting potassium level in calcareous soil tended to decrease,which differed with soil types and soils in different agro-ecological areas. Simultaneously,the results of the potassim fertilizer experiment showed that the application of potassiumto crops led to the increase of output. |
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| Keywords: | calcareous soil potash status potassium fertilizer |
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