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通过调查化州市5个基本农田和4个土地开发新增耕地样点的土壤容重、pH值、有机碳、全氮、碱解氮、速效磷和速效钾含量,明确各样点土壤理化特征差异。方差分析结果显示:样点间土壤各理化性状差异明显。多元数据分析结果显示,pH值较低和速效钾含量较高是当前新增耕地与基本农田理化性状差异的主要影响因素。进一步因地制宜的实施有效的农田管理措施,提高新增耕地土壤质量、增强土地生产力潜力,最终提高土地的质量等级,是未来工作的重点之一。
Soil bulk density, pH value, organic carbon, total nitrogen, available nitrogen, available phosphorus and available potassium were determined through the investigation of five basic farmland and four new cultivated land in Huazhou, difference. Analysis of variance showed that: the physical and chemical properties of soil samples were significantly different. The results of multivariate analysis showed that the lower pH value and the higher available potassium content are the main influencing factors for the difference of physical and chemical properties between newly-added cultivated land and basic farmland. Further implementation of effective farmland management measures according to local conditions, improving the soil quality of newly-added cultivated land, potentiating the potential of land productivity and ultimately improving the quality of land will be one of the focuses of future work.