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调查分析了辽宁省昌图县2005年土壤有效磷含量现状,并与全国第2次土壤普查(1979年)情况作比较。表明昌图县土壤有效磷含量整体呈现上升趋势。由此,提出了合理施肥建议,并分析了土壤有效磷含量过高所带来的危害。
The current situation of soil available P content in Changtu County of Liaoning Province in 2005 was investigated and compared with that of the 2nd National Soil Survey (1979). The results showed that the content of soil available phosphorus in Changtu County showed an overall upward trend. Therefore, the suggestion of reasonable fertilization was put forward and the harm caused by the high content of soil available P was analyzed.