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This research had as objective to verify the influence in growth, nutrition and dry matter partition in oil palm seedling by type and dosages of slow release fertilizers (SRF) and percentage of tray occupation by plastic containers during pre-nursery. The experiment consisted of 16 treatments, in factorial scheme: two types of SRF (Osmocote® e Basacote mini), two dosages (0 and 3 kg/m3) and four schemes for the container distribution used to attain 100%, 66%, 50% and 25% of tray occupation. An additional treatment composed of 15 x 15 cm plastic bags filled with soil was added. Pre-germinated seeds of oil palm were put in plastic containers of 120 cm3 containing substratum and in plastic bags containing soil. After three months, the seedlings were transplanted to 40 x 40 cm plastic bags containing soil. At this time, height, diameter, dry matter and concentration of N, P, K, Ca and Mg were evaluated. After 10 months, seedlings were evaluated for height and diameter and after 16 months, seedlings had the height, diameter and dry matter weight evaluated. Addition of SRF was fundamental for seedlings development. Different percentages of tray occupation by containers during pre-nursery did not influence height and diameter of oil palm seedlings at 10 and 16 months old. The evaluation after 10 months showed that plants fertilized with Osmocote® were higher than those fertilized with Basacote mini. The evaluations after 16 months showed that plants fertilized during the pre-nursery had higher height, diameter and leaflets, leaf, aboveground and total dry matter than plants not fertilized.</p

ciência florestal

Influência da disposição dos tubetes e da aplicação de fertilizantes de liberação lenta, durante o pré-viveiro, no crescimento de mudas de dendezeiro (&lt;i&gt;Elaeis guineensis &lt;/i&gt;Jacq.).