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重庆垫江牡丹主产区土壤养分含量现状及评价

Journal of Southwest China Normal University (Natural Science Edition)(2015)

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Abstract
采用环境调查的方法研究了重庆垫江牡丹主产区土壤的养分含量并利用土壤养分分级标准对其进行评价,以全面掌握垫江牡丹主产区土壤养分含量状况,促进牡丹高产优质生产.结果表明,垫江牡丹主产区土壤整体偏碱性,土壤肥力水平总体不高,有机质含量偏低,碱解氮含量<90 mg/kg ,73.7%的土壤有效磷含量<10 mg/kg ,52.6%的土壤速效钾含量<100 mg/kg ,有效钙、镁含量极为丰富,有效硫极缺比例为36.9%,有效铁含量缺乏比例为84.2%,有效锰含量缺乏比例为89.4%,有效硼含量极度缺乏,实际生产中应做到因地制宜合理施肥,以实现牡丹优质高产.
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Key words
peony,soil nutrients,fertilization
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