Floresta e Ambiente
https://floram.org/article/doi/10.1590/2179-8087-floram-2020-0023
Floresta e Ambiente
Original Article Silviculture

Shading and slow release fertiliser affect early growth in seedlings of Pau-marfim

Oscar José Smiderle; Aline das Graças Souza; Renata Diane Menegatti; Thiago Jardelino Dias; Raiovane Araújo Montenegro

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Abstract

Abstract The aim of this study was to evaluate the initial growth of Agonandra brasiliensis Miers ex Benth. & Hook. F. in response to different levels of shading and doses of controlled-release fertiliser (CRF). The experiment was conducted at Embrapa Roraima in Boa Vista, in a completely randomised experimental design and a 2 x 5 factorial scheme, of two luminosity levels (50 and 30%) and five doses of CRF (formulation 18-05-09, NPK) (0, 0.5, 1, 2 and 3 g L-1 substrate), with five replications, each consisting of five plants. At 240 days after transplanting, the growth characteristics were evaluated, and the influence of the light levels and the CRF dose was recorded on these characteristics, either individually or interactively. It is suggested that plants of Agonandra brasiliensis be fertilised with a dose of 2 g L-1 CRF and grown in an environment with 50% of luminosity to maximize growth and efficiency in the production of high-quality seedlings.

Keywords

Ambiance, Native forest species, Plant nutrition, Seedling production

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Submitted date:
04/15/2020

Accepted date:
09/25/2020

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