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Two successive agricultural years was investigated the effect of fertilizer on forage production of compost from cattle manure aerobic fermentation. For this, were experienced two types of compost with cellulosic support coming from: the stalks chopped sunflower and triticale straw. The type of compost from the two studied recipes did not affect the production of green mass. The fertilizer effect was influenced by the dose of compost administered per unit area, production growth being of 14 t green mass·ha-1 at a dose of 50 t compost·ha-1 and 10 t green mass·ha-1 at a dose of 30 t compost·ha-1. Following the fertilization repeated in the second year, production growth was low, being higher by just 1.7–3% on plots fertilized with 30 t compost·ha-1, respectively, 1.1–1.3% on plots fertilized with 50 t compost·ha-1.