Industrial, urban and agricultural residues can be used as a source of nutrients to contribute to reducing the costs of seedling production. The aim of this study was to determine the concentraton and the amount of nutrients in seedlings of Tectona grandis produced in organic substrate. The seedlings were grown in tubes with volumetric capacity of 280 cm³, filled with two groups of residues and constituting two studies. The first consisted in formulating substrates with biosolids associated with carbonized rice hull or shredded coconut fiber in the proportions 80:20, 60:40, 40:60, 20:80 (v:v), and with 100% BIO forming the basis of nine treatments BIO undergoing treatment compared with the commercial forestry substrate. The second study was characterized by using ratios (v:v:v) for 15, 25 or 35% of cattle manure, poultry litter or quail manure associated with subsoil (60, 50 or 40%, respectively) and 25% commercial forestry substrate forming a set of nine treatments were compared to treatment with commercial forestry substrate. The substrates formed these treatments were subjected to chemical and physical analyzes. To evaluate the nutritionally seedlings, shoots was subjected to chemical analysis. Considering the concentrations and amounts of nutrients, the highest were obtained in the treatment with 80% BIO + 20% CAC, for the treatments with biosolid. For the study of animal manure, the largest amount of nutrients was observed in the treatment with 35% CF. The BIO 60 and 80% associated with CAC or FC promoted greater gains in height, diameter, dry mass of shoots and roots, in the experiment with sewage sludge.Os resíduos industriais, urbanos ou agropecuários podem ser utilizados como fonte de nutrientes visando contribuir para a redução dos custos de produção de mudas. O objetivo deste trabalho foi determinar a concentração e a quantidade de nutrientes em mudas de Tectona grandis produzidas em substrato orgânico. As mudas foram produzidas em tubetes com capacidade volumétrica de 280 cm³, preenchidos com dois grupos de resíduos e constituindo dois estudos. O primeiro constituiu em formular substratos com biossólido (BIO) associado à casca de arroz carbonizada (CAC) ou à fibra de coco (FB) triturada nas proporções 80:20, 60:40, 40:60, 20:80 (v:v), e também com 100% de BIO, formando nove tratamentos a base de BIO submetidos à comparação do tratamento com o substrato comercial florestal. O segundo estudo caracterizou-se por utilizar proporções (v:v:v) de 15, 25 ou 35% de esterco bovino (EB), cama de frango (CF) ou esterco de codorna (EC) associados à terra de subsolo (60, 50 ou 40%, respectivamente) e a 25% de substrato comercial florestal, formando um conjunto de nove tratamentos. Considerando as concentrações e quantidades de nutrientes, os maiores valores foram obtidos no tratamento com 80% BIO + 20% de CAC, para os tratamentos com biossólido. Para o estudo com estercos de animais, a maior quantidade de nutrientes foi observada no tratamento com 35% de CF. O BIO com 60 e 80% associado à CAC ou a FC promoveu os maiores ganhos em altura, diâmetro, massa seca da parte aérea e radicular, no experimento com biossólido