The potential of biosolids and flyash mixtures for soil remediation for revegetation of degraded land. Revegetation of land that has been subjected to land clearing or mining is often limited by the poor quality or lack of topsoil. It may prove possible to remediate these areas of land by incorporating a mixture of two waste products, biosolids and flyash. The aim in this project is to determine the usefulness of this method of land remediation by investigating the nutrient levels and fate of co ....The potential of biosolids and flyash mixtures for soil remediation for revegetation of degraded land. Revegetation of land that has been subjected to land clearing or mining is often limited by the poor quality or lack of topsoil. It may prove possible to remediate these areas of land by incorporating a mixture of two waste products, biosolids and flyash. The aim in this project is to determine the usefulness of this method of land remediation by investigating the nutrient levels and fate of contaminants in various mixtures of biosolids and flyash materials, in the absence and presence of soil minerals, and soil ameliorants such as fertilizers and gypsum.Read moreRead less
Managing subsoil constraints for increased productivity and water use efficiency. Subsoil constraints limit crop production in up to 60% of agricultural land. This project examines the impacts of organic matter incoporation, deep placement of nutrients, use of primer crops, calcium addition and their combination on amelioration of subsoil constraints and thereby on the improvement of root growth, water use and crop yield in high-rainfall region. The best-bet management strategy will be developed ....Managing subsoil constraints for increased productivity and water use efficiency. Subsoil constraints limit crop production in up to 60% of agricultural land. This project examines the impacts of organic matter incoporation, deep placement of nutrients, use of primer crops, calcium addition and their combination on amelioration of subsoil constraints and thereby on the improvement of root growth, water use and crop yield in high-rainfall region. The best-bet management strategy will be developed.Read moreRead less