Phosphorus (P) is one of the essential element for living organisms.
Phosphorus (P) is one of the essential element for living organisms. It contributes considerably to crop and animal production and hence to food security. There are many organic and inorganic P compounds, ranging from available solution P to unavailable compounds. The replenishment of soil solution where plant takes P depends on the chemical and the physical soil properties, which affects the kinetic of exchange between the liquid and sol phases. Therefore, Phosphorus dynamic and its efficiency depends greatly on soil type, climate, fertilizer management and soil and crop managements. A mismanagement of the crop and soil may result in low efficiency, low crop response and erosion of particulate phosphate. To maximize economic return from P fertilizer while minimizing the impact on the environment, research should address the following challenges:
The phosphate byproducts management constitutes a big challenge for the industry. Increasingly considered as resources and not waste, these byproducts can be used as amendments, conditioners and fertilizers and can contribute significantly to the improvement of degraded soils especially saline and mined soils. In fact, soil salinity is worldwide concern and one millions hecatares are affected in Morocco. Furthermore, phosphate mining and processing result in land and ecological systems disturbances. The mining soils need to be reclaimed through human intervention. Research should focus on: