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中国农学通报

中国农学通报 ›› 2008, Vol. 24 ›› Issue (7): 260-264.

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

寿光市耕层土壤养分现状分析

甘延东,李俊良,陈永智,丁光国,王洪滨   

  • 收稿日期:2008-04-21 修回日期:2008-05-20 出版日期:2008-07-05 发布日期:2008-07-05

Analysis on the Topsoil Nutrients Status in Shouguang

<SPAN lang=EN-US style=   

  • Received:2008-04-21 Revised:2008-05-20 Online:2008-07-05 Published:2008-07-05

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摘要： 为摸清寿光市耕层土壤的养分现状，调查并采取全市16个乡镇4083个土壤样品，对其进行土壤的常规分析。结果表明：全市耕层土壤养分总体含量丰富，土壤pH为7.16，碳氮比为8.43，有机质含量中等，为14.70g/kg，全氮含量较丰富，为1.24g/kg，水解氮含量丰富，为126.21mg/kg，有效磷、速效钾含量很丰富，分别为58.23、219.10mg/kg；耕层土壤养分南北地域差别明显，保护地土壤养分显著高于大田土壤；耕层土壤中变异性最大的土壤养分是有效磷，除pH外，其它养分表现为中等程度变异。

关键词: 植物叶片, 植物叶片, 抗氧化系统, 水分胁迫, 低温胁迫, 重金属胁迫

Abstract: In order to proving the topsoil nutrients status in Shouguang, 4083 topsoil samples from 16 towns were collected and analyzed routinely. The results indicated that the conventional contents of topsoil nutrients in the city were rich, while the average contents of pH, C/N, organic matter, total N, Avail-N, Olsen-P, Avail-K were 7.16, 8.43, 14.70g/kg, 1.24g/kg, 126.21mg/kg, 58.23mg/kg, 219.10mg/kg, respectively. As a whole, the content of organic matter is in medium level, total N is relatively rich, Avail-N is rich, Olsen-P and Avail-K are very rich.; The contents of topsoil nutrients showed an obvious difference between north and south in the city, and most soil nutrients in protected vegetable lands are significantly higher than those in open farm lands; Among all the topsoil nutrients, Olsen-P has maximal variance, while the others have medium variance except pH.

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