【摘要】 【目的】研究掌握勐海县古茶园之间土壤养分含量的差异,为勐海县古茶园的土壤养分管理提供科学依据,有助全县茶叶生产实现高效、优质、生态的目标。【方法】选取勐海县9个具有代表性的古茶园土壤取样检测,并对结果进行综合分析。【结果】有66.7%的古茶园土壤pH值在4.5～5.5,33.3%的古茶园土壤pH值低于4.5;22.2%的古茶园有机质含量高于30 g/kg,77.8%的古茶园有机质在10～30 g/kg;碱解氮含量全部超过120 mg/kg;88.9%的古茶园速效磷含量低于3 mg/kg;66.7%的古茶园速效钾含量低于50 mg/kg。【结论】勐海古茶园土壤中,部分茶园的pH值低于4.5,有机质和碱解氮含量比较丰富,速效磷和速效钾比较缺乏。应充分发挥各种有机肥资源,增加古茶园的土壤肥力,运用好测土配方施肥技术,改善古茶园的土壤养分结构和pH值,确保各地古茶园有合理、高效的土壤养分库。更多还原

【Abstract】 【Objective】This paper aimed to grasp the difference of soil nutrient content among the ancient tea gardens in Menghai county and provide a scientific basis for their soil nutrient management, which will help the county’s tea production to achieve high-efficiency, high-quality and ecological goals. 【Method】A total of 9 representative ancient tea gardens in Menghai county were selected for soil sampling, and the results were analyzed comprehensively. 【Result】 The pH value of 66.7 % of the ancient tea gardens soil was 4.5-5.5, and 33.3 % was lower than 4.5; the organic matter content of 22.2 % of the ancient tea gardens was higher than 30 g/kg, and 77.8 % was between 10 g/kg and 30 g/kg; all the alkali-hydrolyzed nitrogen content exceeded 120 mg/kg; the available phosphorus content of 88.9 % of the ancient tea gardens was less than 3 mg/kg; the available potassium content of 66.7 % of the ancient tea gardens was less than 50 mg/kg. 【Conclusion】 In the soil of the ancient tea gardens, the pH value of some tea plantations was lower than 4.5; the contents of organic matter and alkali-hydrolyzed nitrogen were relatively rich; the contents of available phosphorus and available potassium were relatively deficient. We should give full play to all kinds of organic fertilizer resources, increase the soil fertility of ancient tea gardens, use good soil testing and formula fertilization technology, improve the soil nutrient structure and pH value of ancient tea gardens, and ensure that there are reasonable and efficient soil nutrient banks in ancient tea gardens.更多还原