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利用2004—2012年收集的广西油茶林地2 140个土壤样点数据,分析广西油茶林地土壤p H、有机质、碱解氮、速效磷、有效钾、全氮、全磷、全钾含量。参照全国第二次土壤普查分类标准,广西油茶林地土壤属于酸性土壤,土壤有机质和氮平均含量中等,土壤磷钾平均含量水平很低。广西油茶林地土壤养分较为贫瘠,除土壤有机质水平较为适宜油茶生长外,氮、磷、钾含量在不同地区有不同程度的缺乏,限制了油茶产量的形成,生产中应结合油茶营养吸收规律制定区域化施肥配方,精准施肥,以改良土壤肥力,提高油茶产量。
Based on the data of 2 140 soil samples collected from Camellia oleifera forest in Guangxi province from 2004 to 2012, the contents of p H, organic matter, available nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus and total potassium were analyzed. According to the second national classification standard for soil census, the soil of Guangxi Camellia forest belongs to acidic soil, the average content of soil organic matter and nitrogen is medium, and the average level of soil phosphorus and potassium is very low. In addition to soil organic matter is more suitable for the growth of Camellia oleifera, the contents of nitrogen, phosphorus and potassium in different regions have different degrees of deficiency, which limits the formation of the yield of Camellia oleifera. The production should be based on the law of nutrition absorption of Camellia oleifera Fertilization formula, precision fertilization, to improve soil fertility and improve the yield of Camellia oleifera.