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BookletCountry guidelines and technical specifications for global soil nutrient and nutrient budget maps
GSNmap: Phase 1
2022Also available in:
No results found.The "Country Guidelines provides guidance and technical specifications for the first phase of the GSNmap initiative which aims to generate national maps of soil nutrients and associated soil properties at 250 m resolution for agricultural lands based on a country–driven approach. On the one hand, soil nutrient maps will provide a baseline for identifying areas where their levels are critical for crop growth and will thus serve as an important decision–making tool. On the other hand, associated soil parameters such as organic carbon, pH, soil texture, bulk density, and cation exchange capacity will be mapped, which can highlight the key limits to nutrient availability. In order to obtain consistent results and to allow comparisons between countries and regions, we propose a standard methodology based on digital soil mapping techniques. General modelling procedures, data requirements and data sources are described. The final product specifications and data submission formats are also provided. The final product will be relevant to identify the level of nutrients and associated soil properties per regions, environments and agricultural systems, and to establish priorities for the implementation of global and national public and private policies. -
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Book (stand-alone)Impact of soil loss in Malawi: microeconomic effects of soil and nutrient loss. Profitability and mitigation measures 2018
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No results found.This policy brief is based on a recent technical report on the microeconomic and macroeconomic impact of nutrient and soil loss in Malawi. Econometric estimates were used to evaluate the impacts, differentiated by segments of the national population and geographical areas. In the same manner, the demonstration of mitigation effects by specific agricultural practices offers valuable information for the design of policy recommendations aimed at maximizing the farmers’ profit when facing increasing phenomena of land degradation.
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