ORGANO-MINERAL FERTILIZER PRODUCTION FROM OIL WELL DRILLING WASTE Offshore
sustainable agriculture, soil fertility, nutrient management, reuse of waste in agriculture, soil health and quality.
Abstract: Agricultural fertilizers are important inputs for rebuilding and maintaining soil fertility, especially in regions with a high degree of weathering. The use of organo-minerals produced from industrial by-products is an efficient management strategy for supplying nutrients to plants. This strategy promotes agriculture with a lower environmental impact and reduces dependence on external inputs. The aim of the thesis was to evaluate the agronomic efficiency of the organo-mineral produced by combining gravel from drilling wells for maritime oil and biosolids, using corn and sunflower as indicator plants. The thesis consists of three chapters. The first chapter evaluated the best proportions of waste, the best physical nature for production and the dissolution of the organo-mineral. The second chapter evaluates the agronomic efficiency of the organo-mineral fertilizer in the field when growing maize and sunflower. The third chapter evaluates the quality and health of soils managed with organo-minerals.