Soluble Elements Released from Organic Wastes to Increase Available Nutrients for Soil and Crops

Member States of the European Union must ban burning arable stubble by 2023 and improve recycling organic waste into fertilizers farming practices 2030. The current lack nutrients from soils crops leads to food insecurity, human malnutrition diseases. Consequently, innovative solutions are required, as technosols constructed waste. objective this paper is educate on that some pruning residues can provide. This work characterizes elemental composition, soluble fraction physical chemical properties following wastes: almond tree pruning, commercial peat substrate, olive pine needle, date palm leaf sewage sludge compost vine pruning. results show significant differences between macro (Na, K, Ca, Mg) micronutrient (Fe, Mn, Cu, Zn) content their solubility. Sewage compost, needle three with highest presence in composition. Nevertheless, if a farmer applies nutritional supplement for crops, it will be key finding short-term nutrient rate synchronizing requirement curve plant’s life cycle its release. (without composting treatment) obtains higher solubility rates, being residue one greatest value. index wastes providing crops. Hence, our help choosing proper enhance plant supply, mainly Mg Na crop nutrition, ensure efficient biofertilization.