Issues

We would welcome your contribution on the following issues:

• What are the feasible approaches and solutions to the numerous problems associated with methodological estimations such as limited availability of data at spatial scales, scale-specific spatial variation of nutrient balance input data, non-linearity in upscaling and lack of reliable upscaling techniques?
• How to improve the nutrient budget analysis so as to make it an effective instrument for understanding the status and dynamics of soil fertility across the farming systems?
• How to improve validity of assumptions, the degree of reliability, and capability to provide insight into the dynamic processes and lend support for extrapolation?
• What new approaches/directions, investigations and extra efforts are needed and are feasible to provide better validity to the findings?
• How to develop the nutrient balance study models as simple, reliable and objective indicators of sustainable soil productivity adaptable to various situations, and to make them a more meaning instrument to serve for future directions, time-scale forecasting and policy formulation on soil fertility management.
  

Note: The terms in bold may be used as subject title(s) for posting contributions.