The pedogenic relationship of available nitrogen, phosphorus, and potassium with some soil characteristics in Al-Qasim district / Babylon province

الملخص

                 A field study was conducted in the year 2022 to determine the What is the padogenic distribution of some available elements in the sedimentary soil of Al-Qasim district in Babylon province, which represents the sediments of the Euphrates River. 4 sites were selected covering agriculturally exploited areas for a period of 10 years. The locations of the beds were revealed and their morphology was described. Then samples were obtained and the soil components and some of their characteristics were analyzed. In addition to estimating the available elements of nitrogen, phosphorus, potassium, and iron, the results indicated that all sites were characterized by the dominance of the alluvial separation, followed by the clay separation, then the sand separation, with a decrease in the values of calcium carbonate and organic matter with depth, while the organic matter was positively associated with the clay separation, and as for the pedogenic distribution of the elements, it was recorded. The study showed that all of the available elements of nitrogen, phosphorus, and potassium were positively associated with organic matter and clay separation, and negatively with calcium carbonate and cation exchange capacity.