Growing conditions and substrates for producing collard green seedlings in a tropical climate

• Autor(a) principal: Monteiro Neto, João Luiz Lopes
• Data de Publicação: 2024
• Outros Autores: Albuquerque, José de Anchieta Alves de, Melo, Valdinar Ferreira, Araújo, Wellington Farias, Bardales-Lozano, Ricardo Manuel, Dionisio, Luiz Fernandes Silva, Alvarez, Richard Alcides Molina, Barreto, Glauber Ferreira, Liarte, Fleorliene Félix, Abanto-Rodríguez, Carlos
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Semina. Ciências Agrárias (Online)
• Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/48563
• topic: Brassica oleracea var. acephala; Seedling quality; Photo-converting mesh; Savannah.; Brassica oleracea var. acephala; Qualidade de mudas; Malhas fotoconversoras; Savana.

Determining an efficient system for seedling production in greenhouses and on photo-converting mesh, considering the substrates' quality, is essential for obtaining productive and economically viable crops. In this context, the objective of the present study was to evaluate the effects of growing conditions and substrates on the production of collard green seedlings in a tropical climate. Therefore, five growing conditions (i.e., A1: agricultural greenhouse, A2: red 35% Chromatinet®, A3: red 50% Chromatinet®50%, A4: silver 35% Chromatinet®, and A5: silver 50% Chromatinet®) were randomly combined into subdivided plots with four substrate types (S1: OrganoAmazon®, S2: OrganoAmazon® + PuroHumus®, S3: OrganoAmazon® + PuroHumus® + soil + cattle manure, and S4: OrganoAmazon® + PuroHumus® + soil + cattle manure + carbonized rice husk). Subsequently, we evaluated their effects on the seedlings' quantitative and qualitative variables. Results showed that the combined use of silver 35% Chromatinet® (A4) and substrate S2 (OrganoAmazon® + PuroHumus®) promoted the best growth conditions for collard green seedlings The greenhouse (A1) when combined with substrate S4 (OrganoAmazon® + PuroHumus® + soil + cattle manure + carbonized rice husk), also favored the production of collard green seedlings. The substrate formulated with OrganoAmazon® + PuroHumus® + soil + manure + carbonized rice husk (S3) is an alternative for producing collard green seedlings. Conversely, the red nets (A2 and A3) and the OrganoAmazon® substrate (S1) used alone did not favor the production of collard green seedlings in a tropical climate.