Phosphorus (P) is an indispensable natural mineral for biological processes and structures that support life in plants and animals. P deficiency is the most common nutritional stress of cultivated land in many regions of the world. The aim of this study was to determine the phosphorus (P) sorption characteristics of some soils and derive parameter estimates relevant in the prediction and management of P as well as their relationship to the properties of the soils. Four soil samples (each taken from depths of 0−10, 10−20 and 20−30 cm) were obtained from the Eastern Region of Ghana for this study. An uncultivated virgin land at Huhunya (HV), a cocoa farm in Akwadum (AC), a plantain farm also in Huhunya (HP) and piece of land which had been allowed to go fallow in Huhunya (HF) was used. Measurement of P sorption was conducted by equilibrating air-dried soil (<2 mm) in 0.2 M CaCl₂ solution containing various concentrations of P. Phosphorus sorption data for soils was fitted to the Langmuir, Freundlich and Temkin isotherm equations. The result of the study show that the amount of phosphorus adsorbed increased with increasing depth with AC soil recording an average range of 114.16−211.55 μg/g. Phosphate adsorption was well described by the three isotherm equations. The data from the soils did conform best to the Langmuir equation with an average r² value of 0.99. It was realized that virgin soil (from Huhunya) would require the most P fertilizer. The least P fertilizer would be required by the soil from the plantain farm (HP). Correlation analysis showed a significant relationship between some soil characteristics and the sorption parameters derived from the three equations.

磷 (P) 是支持动植物生命的生物过程和结构不可或缺的天然矿物质。缺磷是世界许多地区耕地最常见的营养胁迫。本研究的目的是确定一些土壤的磷 (P) 吸附特性，并推导出与 P 预测和管理相关的参数估计值以及它们与土壤特性的关系。本研究从加纳东部地区获得了四个土壤样品（每个取自 0-10、10-20 和 20-30 厘米的深度）。使用了 Huhunya (HV) 的未开垦处女地、Akwadum (AC) 的可可农场、Huhunya (HP) 的大蕉农场以及 Huhunya (HF) 允许休耕的土地。₂溶液含有不同浓度的磷。土壤的磷吸附数据符合 Langmuir、Freundlich 和 Temkin 等温线方程。研究结果表明，吸附的磷量随着深度的增加而增加，AC 土壤记录的平均范围为 114.16-211.55 μg/g。三个等温线方程很好地描述了磷酸盐吸附。来自土壤的数据确实最符合朗缪尔方程，平均 r ²值为 0.99。人们意识到原始土壤（来自呼浑亚）需要最多的磷肥。车前草农场 (HP) 的土壤所需的磷肥最少。相关性分析表明，某些土壤特征与由三个方程得出的吸附参数之间存在显着关系。