VALORIZATION OF LIGNOCELLULOSIC MATERIAL FROM DATE PALM WASTE (Phoenix dactylefera L.) ELHMIRA CULTIVAR BY COMPOSTING AS ORGANIC FERTILIZER

The date palm constitutes the main crop of agriculture in the Saharan regions and offers a wide range of agricultural by-products, while the increase of date palm by-products production leads to accumulation of waste with harmful effects on environment. The main objective of this study is to valorize the lignocellulosic material of date palm waste (Phoenix dactylefera L.) of petiole, dry palms, spathe, and flower stalk used as organic fertilizers by composting and biological treatment. The composts characterization study showed that the petiole subsfrate has an equal content of 536.4 mg / L of potassium, while the spathe substrate has equal content of 478.17 ppm, with regard to the phosphorus content. Hence, the cultivation test mentioned that the flower stalk exhibited a considerable bean plant biomass compared to other composts.