Determination of the Influence of Texture and Organic Matter on Soil Water Holding Capacity in and Around Tomas Irrigation Scheme, Dambatta Local Government Kano State

摘要

This research was conducted in Dambatta local government with aim of determining the influence of texture and organic matter content on soil water holding capacity. Three sites were chosen based on land uses-cultivated area (Jama?a village), uncultivated site (shantake) and Tomas irrigation site. Fifteen composite samples were randomly collected from the top (0-15 cm) in the sites. The samples were analyzed for some soil parameters such as particle size distribution, organic carbon and water holding capacity using standard routine laboratory tests. In addition, statistical graphs and tables were employed to analyze the data. Mean values of soil organic carbon was computed to compare the results with the previous findings. The mean soil organic carbon of shantake, Tomas and Jama?a fields were found to be 2.57, 1.37 and 1.27%, respectively. The textures of the soil samples were found to be Sand and Loamy sand. The soil water holding capacity ranged from 5 to 25%. The results showed that soil organic matter was found to be higher in uncultivated fields than in irrigation fields and continuous cultivation fields. It was concluded that soil organic matter and texture had influence on water holding capacity and the effect was more pronounced when fine texture was coupled with appreciable amount of soil organic matter. It was recommended that higher levels of organic matter should be incorporated to the soils with aim of improving soil water holding capacity and further research should be done in order to fully understand the moisture characteristics of different soil samples in the study area and sudano-sahelian zone at large.