Newsletter on soil salinity () Currently, the entire world is facing major challenges related to increasing populations that must be fed, depletion of natural resources, impact of environmental factors, and climate changes. All these challenges are important, but food and natural resources shortages are becoming increasingly stringent. Both external and internal changes put increasing pressure on the sustainability of the agri-food system. External pressures on this system result from demographic, economic and environmental changes such as globalization, climate change, and scarcity of resources. On the other hand, the structure, texture and properties of the soil are deteriorated as a result of intensive conventional agriculture based on the addition of fertilizers, chemical amendments, synthetic phyto pesticide products. |