重庆垫江牡丹主产区土壤养分含量现状及评价

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100mg/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.

On Soil Nutrients Status of Peony Major Production Area in Dianjiang County of Chongqing

Methods of environmental investigation have been adopted to study the 19 soil nutrients status of peony major production area in Dianjiang County of Chongqing .Classification of soil nutrient standards have been used to evaluate soil nutrients for getting a comprehensive situation about the soil nutrients sta-tus ,and improving the yield and quality of peony .T he results show that the soil of peony major produc-tion area is partially alkaline overall .The soil fertility levels is not high ,and organic matter content is low ,w hich the content of available nitrogen ,73 .7% of the soil available phosphorous and 52 .6% of the soil potassium is less than 90 mg/kg ,10 mg/kg and 100 mg/kg ,respectively .The content of available cal-cium and magnesium are extremely rich .However ,the available sulfur ,available ferrum and available manganese are low level ,w hich proportion is 36 .9% ,84 .2% and 89 .4% .w hile the content of available boron is inadequate extremely .The actual production should be rational fertilization and adjust measures on the basis of local conditions in order to realize the peony's high yield and high quality production .