Giácomo, Rômulo Guimarães creator Alves, Marlene Cristina creator Camara, Rodrigo creator Pereira, Marcos Gervasio creator Arruda, Otton Garcia de creator Souto, Sebastião Nilce creator Moraes, Mário Luis Teixeira de creator text periodical abstract or summary bl. continuing eng ABSTRACT This study aimed to test the effects of fertilization with organic compost from industrial production of pulp on the litterfall and nutrient input of monospecific plantations in a loan area. The treatments consisted of three doses of the organic compost D10, D15 and D20 (10, 15 and 20 Mg ha-1, respectively), mineral conventional fertilization (DAM) and no fertilization (D0) in land plots (N = 4/treatment/species; 15 x 12 m). Litterfall was monthly collected by two traps (0.72 m2 /plot) and sorted out into leaves, twigs, seeds, flowers, fruits and others. We determined the input of nitrogen, phosphorous and potassium. There were no differences among the treatments and between species in terms of total annual litterfall. The higher nutrient input was obtained by DAM, followed by D10, in both plantations. The annual nutrient input was higher for the litterfall on the E. urograndis plantation. Keywords: Eucalyptus urograndis, Mabea fistulifera, nutrient cycling. Publicação on-line; 39 ref.; 3 tables; 4 illus; Summay (En) EUCALYPTUS GRANDIS NUTRIENTE Rio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994 2025-0444 1415-0980 / ISSN 2179-8087 0nline BR2025007477 v. 24 p. 1-9; (2017) https://www.scielo.br/j/floram/a/KhcZZ4PPMSRzKQDdBDWnvty/?format=pdf&lang=en https://www.scielo.br/j/floram/a/KhcZZ4PPMSRzKQDdBDWnvty/?format=pdf&lang=en BR-BrBNA 260227 20260227091325.0 eng