<p>O baruzeiro (<em>Dipteryx alata</em> Vog.)<strong> </strong>é uma árvore frutífera da família Leguminoseae disseminada no Bioma Cerrado, que apresenta vários aspectos de interesse econômico (madeira, frutos, sementes), porém, a exploração da espécie ainda é extrativista, sendo as pesquisas relacionadas à propagação fundamentais para o seu cultivo comercial. O presente trabalho teve como objetivo avaliar diferentes substratos e tamanhos de recipiente na produção de mudas de baruzeiro (<em>Dipteryx alata</em> Vog.). O experimento foi conduzido no Viveiro de Mudas da Universidade do Estado de Mato Grosso – UNEMAT, no município de Nova Xavantina – MT, no período de junho a julho de 2017. O delineamento experimental utilizado foi em blocos casualizados (DBC), em esquema fatorial 3 (substratos) x 2 (tamanhos de recipiente), com seis tratamentos, quatro repetições e dez plantas por parcela. Os tratamentos foram: T1 - solo + recipiente de 3,8 dm³; T2 - solo + recipiente de 1,8 dm³; T3 - solo e esterco bovino ₊recipiente de 3,8 dm³; T4 - solo e esterco bovino + recipiente de 1,8 dm³; T5 - substrato comercial + recipiente de 3,8 dm³; T6 - substrato comercial + recipiente de 1,8 dm³. As características agronômicas avaliadas foram: altura de plantas, diâmetro do caule, número de folhas e folíolos, massa fresca e seca da parte aérea e do sistema radicular e índice de qualidade de Dickson. De acordo com os resultados obtidos, houve diferença estatística entre os recipientes avaliados apenas para a característica altura de planta, destacando-se aquelas produzidas em recipientes menores (1,8 dm³). Com relação aos substratos, verificou-se maior crescimento das mudas nos tratamentos contendo apenas solo e substrato comercial, podendo ser utilizados na produção de mudas de baruzeiro.</p>

Mangabeira (Hancornia speciosa Gomes), a fruit tree native to the Brazilian Cerrado, has great potential for commercial cultivation due to the quality of fruits, which can be consumed fresh or processed. However, it is necessary to expand research in the area of propagation of this fruit tree. The aim of this study was to evaluate different substrates and container volumes in the production of mangabeira seedlings, H. speciose, in Nova Xavantina-MT. The experiment was carried out at the nursery of the Mato Grosso State University (UNEMAT), Campus of Nova Xavantina in a randomized block design, in a 2 x 4 factorial scheme, with two container volumes (0.9 e 1.8 dm3) and four substrates (soil; soil + sand; soil + sand + bovine manure; and commercial substrate), totalizing eight treatments with four replicates and plots composed of 10 plants each. The greatest growth of mangabeira seedlings was observed using soil or soil + sand + bovine manure and 1.8 dm3 container.

Barueiro (Dipteryx alata Vog.), a fruit tree native to the Brazilian cerrado, has aroused the interest of producers and consumers due to its almond highly appraised and valued by local markets. To obtain quality barueiro seedlings, balanced fertilization is required, with special attention to the supply of phosphorus and nitrogen, essential for seedling growth and establishment in the field. The aim of this study was to evaluate the growth of barueiro seedlings produced with different phosphate and nitrogen concentrations in Nova Xavantina – MT. The experiment was conducted at the seedling nursery of the Mato Grosso State University (UNEMAT), Campus of Nova Xavantina - MT, from December 2017 to April 2018. The experimental design was randomized blocks (DBC), in a 5 × 2 factorial scheme, corresponding to 5 phosphorus concentrations and 2 nitrogen concentrations, with 10 treatments, 4 blocks and 10 plants per plot, totalizing 400 seedlings. The applied concentrations were 0, 150, 300, 450 and 600 mg kg-1 P2O5 and 0 and 250 mg kg-1 N. The following variables were evaluated: plant height, plant stem diameter, number of leaves, number of leaflets, fresh and shoot and root dry mass and Dickson’s Quality Index. Significant interaction between phosphorus and nitrogen concentrations for all traits evaluated was observed, except for root dry mass. The greatest growth of barueiro seedlings was obtained when the highest phosphorus concentration (600 mg kg-1de P2O5) was used, associated to nitrogen fertilization of 250 mg kg-1. There was no isolated effect of phosphate fertilization on the growth of barueiro seedlings without nitrogen application.