Araújo, James Maciel de creator Andrade Neto, Romeu de Carvalho creator Oliveira, João Ricardo de creator Lunz, Aureny Maria Pereira creator Almeida, Ueliton Oliveira de creator text periodical abstract or summary bl. continuing eng ABSTRACT The objective of this work was to evaluate the initial growth of assai seedlings (Euterpe oleraceae) in response to shading and slow release fertilizer. The experiment was conducted at Embrapa Acre in a randomized block design using a 4 × 5 factorial scheme with three replicates and 10 plants per plot. The treatments consisted of four shade environments (20%, 30%, 50% and 75%) and five levels of slow release fertilizer (0.0, 2.5, 5.0, 7.5 and 10.0 kg m–3). The following characteristics were evaluated: plant height, number of leaves, stem diameter, leaf dry mass, stem dry mass, root dry mass, total dry mass, and seedlings quality index. The growth of assai seedlings was influenced by shade environment conditions and slow release fertilizer. Shade environment with 30% or 50% and a dose of 8 kg m–3 resulted in better quality seedlings. Keywords: Western Amazon, mineral nutrition, palm. Publicação on-line; 43 ref.; 3 tables; 7 illus.; Summary (En) EUTERPE OLERACEA AMAZÔNIA OCIDENTAL FERTILIDADE DO SOLO Rio de Janeiro-RJ Instituto de Florestas - UFRRJ 1994 2025-0451 1415-0980 / ISSN 2179-8087 0nline BR2026000261 v. 26(2) p. 1-10; (2019) https://www.scielo.br/j/floram/a/J4vQj5wsSHYSsTtWz7c93CD/?format=pdf&lang=en https://www.scielo.br/j/floram/a/J4vQj5wsSHYSsTtWz7c93CD/?format=pdf&lang=en BR-BrBNA 260402 20260402110717.0 eng