Portal de Periódicos da CAPES

Artigo Acesso aberto Produção Nacional Revisado por pares

BIBTEX RIS

Use of agro-industry residues as substrate for the production of Euterpe precatoria seedlings

2020; UNIVERSIDADE FEDERAL DE GOIÁS; Volume: 50; Linguagem: Inglês

10.1590/1983-40632020v5058709

1983-4063

C. S. de Araújo, Aureny Maria Pereira Lunz, Vanderley Borges dos Santos, R. de C. Andrade Neto, S. R. Nogueira, R. S. dos Santos,

Soil Management and Crop Yield

ABSTRACT The availability of single assai palm (Euterpe precatoria) seedlings with good quality is a fundamental requirement to expand the cultivation of the species. This study aimed to assess the use of fruit agro-industry residues as substrate for producing single assai seedlings. The experiment was carried out under nursery conditions, in a completely randomized design, with four replications and eight plants per plot. Fifteen treatments were evaluated: a commercial substrate, four dry and crushed agro-industrial residues (Brazil nut shell, acerola pit, assai pit and cupuassu peel) and ten combinations of these materials in the proportion of 1:1. The following variables were also measured: shoot height; stem diameter; number of leaves; shoot, root and total dry mass; and Dickson Quality Index score. The substrate formulated with Brazil nut shell + acerola pit stood out for promoting a higher growth and dry biomass, resulting in seedlings with a better quality. The pure assai pit residue was not efficient for producing seedlings, but it showed a good potential when mixed in equal proportion with other materials (e.g. Brazil nut shell and cupuassu peel).