Subproduto do processamento de castanha para desenvolvimento de Anthurium plowmannii

Abstract

The objective of this work was to evaluate alternative substrates from the processing of chestnuts in Tefé – AM for the growth of Anthurium plowmannii. The design was completely randomized with 4 replications, 3 plants per plot and 5 substrates evaluated. There are 7 treatments: Bertoletia excelsa bark (Brazil nut shell), Bertoletia excelsa bark (Brazil nut shell) + perlite in the proportion (3:1), Lecytis pisonis (sapucaia shell), Lecytis pisonis (sapucaia) + perlite (3:1), partially charred açaí seed, pine bark and coconut powder + perlite (3:1). The analyzed variables for the growth and development of Anthurium plowmannii were: number of leaves, leaf area (cm²), leaf length (cm), leaf width (cm), mass of fresh matter of the aerial part (mg) and mass of matter fresh root matter (mg), shoot dry matter mass (mg) and root dry matter mass (mg). The physicochemical analyzes revealed important differences between the substrates such as: Ph, C/N ratio and quantity of nutrients present in each substrate, their quantity/availability relationship was of great importance to understand the results found. Bark of Bertolethia excelsa (Brazilian nut bark), presented the best results in all variables analyzed for the growth and development of Anthurium plowmannii and showed great potential as a substrate for several species, including ornamentals.