Floresta e Ambiente
https://floram.org/article/doi/10.1590/2179-8087.071714
Floresta e Ambiente
Original Article Silviculture

Telas de Sombreamento e Substratos na Produção de Mudas de Dipteryx alata Vog.

Shading Screens and Substrates for Dipteryx alata Vog. Seedling Production

Costa, Edilson; Dias, Jessica Garcia; Lopes, Karina Garcia; Binotti, Flávio Ferreira da Silva; Cardoso, Eliana Duarte

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Resumo

Este trabalho avaliou tecnologias de ambientes protegidos e substratos para a produção de mudas de Dipteryx alata Vog. Foram utilizados dois ambientes protegidos: telado agrícola, fechamento em 90° graus, com tela preta nas laterais e aluminizada na cobertura, ambas de 50% de sombreamento; telado agrícola, fechamento em 45° graus, com tela preta nas laterais e cobertura, de 50% de sombreamento. Em cada ambiente foram testados substratos de mistura de esterco bovino (E) e vermiculita (V): 100% E + 0% V; 90% E + 10% V; 80% E + 20% V; 70% E + 30% V; 60% E + 40% V; 50% E + 50% V; 40% E + 60% V; 30% E + 70% V; 20% E + 80% V; 10% E + 90% V. O telado preto propiciou mudas de melhor qualidade e os substratos com baixas porcentagens de esterco (10, 20 e 30%) são os mais propícios para a formação de mudas de Dipteryx alata Vog.

Palavras-chave

baru, esterco bovino, vermiculita, ambientes protegidos.

Abstract

This study evaluated the technologies of protected environments and substrates for the production of Dipteryx alata Vog. seedlings. Two protected environments were used: agricultural screened, closing at 90 degrees, with black screen on the sides and aluminized screen on the cover, both with 50% shading; agricultural screened, closing at 45 degrees, with black screen on the sides and cover, both with 50% shading. In each environment, substrates composed of mixture of cattle manure (E) and vermiculite (V) at the following ratios were tested: 100% E + 0% V; 90% E + 10% V; 80% E + 20% V; 70% E + 30% V; 60% E + 40% V; 50% E + 50% V; 40% E + 60% V; 30% E + 70%; 20% E + 80% V; 10% E + 90% V. The black screen environment propitiates seedlings of better quality and the substrates with low percentages of cattle manure (10, 20 and 30%) are the most propitious for the formation of Dipteryx alata Vog. seedlings.

Keywords

baru, cattle manure, vermiculite, protected environments.
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