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Digestates are the majority by-product of methanization. They are rich in organic and mineral elements, giving them a high organic fertilizer potential. The spreading of digestates, particularly of agricultural origin, is the most commonly carried out practice in order to valorize this product. Physicochemical and agronomic indicators are used in order to quantify their characteristics and qualities. The characteristics of digestates are very variable and depend on several factors such as inputs, operating conditions of methanizers and post-treatments. Here, we propose the solid fraction of a digestate, mainly from plant matter, and supplemented with non-ruminant slurry and ruminant slurry.