Effect of pyroligneous extract on initial growth of corn and bean plants

• Autor(a) principal: Weber da Silva, Darlan
• Data de Publicação: 2021
• Outros Autores: Canepelle, Eduardo, Carlson Writzl, Thaniel, Daniel Steffler, Andersson, Eduardo Schmitt Stein, Jackson, Guerra, Divanilde, Maisa da Silva, Danni, Redin , Marciel
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Eletrônica Científica da Uergs
• Texto Completo: https://revista.uergs.edu.br/index.php/revuergs/article/view/2789
• topic: Insumo alternativo; Zea mays; Phaseolus vulgaris; Ácido pirolenhoso; Entrada alternativa.; Zea mays.; Phaseolus vulgaris.; Ácido piroleñoso.; Alternative input.; Zea mays.; Phaseolus vulgaris.; Pyrolenous acid.

The aim of this work was to evaluate the influence of different concentrations of pyroligneous extract (PE) applied on seeds and soil on the initial growth of corn (Zea mays L.) and black bean (Phaseolus vulgaris L.) plants. The experiment was performed in 8 dm3 plastic pots with corn and bean cultivated with PE application in two ways, in soil and seed. The soil PE concentrations (water + PE) tested were: 0; 0.5; 1.0; 1.5 and 2% v.v-1 and in the seeds: 0, 25, 50, 75 and 100% v.v-1. Index of velocity of emergence (IVE) and morphological evaluations were determined: plant height and stem diameter with biweekly evaluations. In addition, the determination of shoot dry matter (SDM) and roots (RDM) was done at the end of the experiment at 60 days after sowing. The PE applied to corn seeds reduced stem diameter, plant height and IVE, in bean inhibited seed germination. When applied to the soil at a concentration of 2.0%, it increased the height of maize plants by 12 cm and increased RDM production by 34.3%; beans reduced IVE, did not increase plant height and RDM. Thus, the use of PE applied in the soil presents itself as a potential alternative input for the increase in the initial growth of corn plants.