ISSN: 2577-4050
Authors: Yitagesu YH*
Acidic soils are not responsive to the application of inorganic fertilizers without amendments and reclamation by agricultural lime. Liming is the best technology and a conditioner to rises the pH and available phosphorus levels of acid soils. For this research activity, calcite lime in different rates incubated acid soil aims to show the change in physicochemical properties. The soil sample for incubation work has been collected from fifteen locations of acid-prone areas, all over the country. The incubation study has been conducted with four lime rate factors (0, 0.5, 1.0, 1.5, and 2.0*LR) and the rate of CaCO3 has been calculated from the initial soil acidity level by using exchangeable acidity lime recommendation methods. After 90 days of incubation, soil physicochemical parameters have been characterized for pH, Exchangeable acidity, Total nitrogen, Organic carbon, and Available phosphorus. From the study findings, the level of acidity has declined up to 88.96%. The pH level has been improved from 4.98 to 5.61, and the available phosphorus also accordingly improved from 7.69ppm to 8.63ppm but not significant with 0.5-factor intervals. There is no significant response observed in Total Nitrogen and Organic carbon parameters with the application of different lime ratings. From this study conclude that as the rate of lime applied is amended the level of acidity, pH, and phosphorus level also accordingly improved but no significant change was observed for Total nitrogen and Organic carbon. To increase phosphorus content, sufficient and responsible for better amendment of the soil and crop productivity needs to apply different sources of phosphorus fertilizers. The exchangeable acidity lime recommendation method even with doubled LR factor might not raise the pH to the optimum level of crop requirement.
Keywords: Incubation; Soil Properties; Lime
