| 张会民,刘红霞,郭大勇,刘德鸿,王留好,王浩,周文利,郭永新.洛阳市粮田土壤养分状况分析[J].干旱地区农业研究,2007,(1):82~87 |
| 洛阳市粮田土壤养分状况分析 |
| Analysis of the soil nutrient status of grain crop fields in Luoyang |
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| DOI：10.7606/j.issn.1000-7601.2007.01.17 |
| 中文关键词: 粮田 土壤养分 洛阳市 |
| 英文关键词:grain crop fields soil nutrient status |
| 基金项目:河南省科学技术厅科技攻关项目(0324060029)； 河南科技大学青年基金(2004QN027) |
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| 中文摘要: |
| 分析了洛阳市主要粮田土壤247个土壤样品的养分状况。结果表明,土壤有机质、全氮、速效磷和速效钾的平均含量分别为1.25%、0.91 g/kg、10.88 mg/kg和128.7 mg/kg;总体而言,有机质和全氮含量处于低水平(1%~2%和0.8~1.0 g N/kg),速效磷处于中低水平(5~20 mg P/kg),速效钾处于中等水平(100~150 mg K/kg);有机质、全氮和速效磷含量的次数分布曲线呈高峰偏左的正偏峰,速效钾呈近似为高峰稍微偏右的正态峰;速效磷的变异程度(C V%)最大,有机质和全氮的次之,速效钾的最小。 |
| 英文摘要: |
| 247 soil samples selected from grain crop fields in Luoyang were examined.The results showed that the average contents of organic matter,total nitrogen,available phosphorus and available potassium were(1.25%,) 0.91 g/kg, 10.88 mg/kg,and 128.7 mg/kg,respectively. As a whole,the contents of organic matter and total N were low,the available P medium to low level,and the available K medium level.Frequency distribution of the contents of soil organic matter,total N,and available P appeared curves of deviating from normal distribution,which has left-deviating peaks,and the available K appeared an approximate normal distribution curve.The order of coefficient of variation(CV%) is available P > organic matter,total N > available K. |
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