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通过实地采样和实验室化验分析,研究云南古茶园土壤化学成分含量状况。结果表明,古茶园土壤含有机质4.66%、碱解氮167.48 mg/kg、速效磷13.57 mg/kg和速效钾81.46 mg/kg,有效硼1.07 mg/kg、有效钙292.93 mg/kg、有效镁47.2 mg/kg、有效铁85.99 mg/kg、有效锰20.72 mg/kg、有效铜0.93 mg/kg和有效锌1.33 mg/kg,全铬74.28 mg/kg、全铅96.67 mg/kg和全汞0.13 mg/kg。有机质含量高于中国目前一等土壤生产水平和高产优质高效茶园土壤含量水平,速效磷、速效钾、有效铜和有效锌含量均低于高产优质高效茶园土壤含量水平。
Through field sampling and laboratory analysis, the content of soil chemical components in ancient tea gardens in Yunnan Province was studied. The results showed that the contents of soil organic matter in ancient tea plantation were 4.66%, 167.48 mg / kg for nitrogen, 13.57 mg / kg for available phosphorus and 81.46 mg / kg for available potassium, 1.07 mg / kg for available boron, 292.93 mg / mg / kg, available iron 85.99 mg / kg, available manganese 20.72 mg / kg, available copper 0.93 mg / kg and available zinc 1.33 mg / kg, total chromium 74.28 mg / kg, total lead 96.67 mg / kg and total mercury 0.13 mg / kg. Organic matter content is higher than the current first-class soil production level and high-yield, high-quality and high-efficiency tea garden soil in China. The contents of available phosphorus, available potassium, available copper and available zinc are lower than those of high yield, high quality and high efficiency tea plantation.