DESENVOLVIMENTO DE MUDAS DE PARICÁ SOB INFLUÊNCIA DE DIFERENTES SUBSTRATOS E NÍVEIS DE SOMBREAMENTOS

• Autor(a) principal: Bastos, Adriene de Oliveira
• Data de Publicação: 2023
• Outros Autores: Shibata, Marilia, Santos, Cassio Rafael Costa dos, Fernandes, Ana Paula Donicht
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Nativa (Sinop)
• Texto Completo: https://periodicoscientificos.ufmt.br/ojs/index.php/nativa/article/view/14023
• topic: luminosidade; mudas florestais; produção mudas; substratos orgânicos

The production of seedlings is a fundamental step for any species to reach its high standard of productivity and quality. Factors such as the correct choice of substrate types and light intensity to which the seedlings are submitted during this phase should be considered. Thus, the objective of this work was to evaluate the initial development of paricá seedlings under the influence of different organic substrates and shading levels. The experimental design was arranged in randomized blocks, arranged in split plots, using four levels of shading (0%, 30%, 50% and 70%) as the primary factor, and four types of organic substrates: A (100 % fermented crushed açaí seed); B (65% açaí + 35% poultry litter); C (20% poultry litter + 50% sawdust + 30% soil) and D (100% soil – control), as a secondary factor. Five biweekly evaluations of the variables total height, diameter at neck height and number of leaves were carried out. Organic compost B and levels of 30% and 50% of shading provided better means for the variables analyzed. Therefore, these treatments are recommended for the production of paricá seedlings.