Biochar from Caryocar brasiliense as a soil conditioner for common bean plants

• Autor(a) principal: Maria Shirley Amorim Silva
• Data de Publicação: 2022
• Outros Autores: Fernando Colen, Regynaldo Arruda Sampaio, Alcinei Mistico Azevedo, Josiana Jussara Nazare Basílio, Cryslane Gonçalves Cota, Luiz Arnaldo Fernandes
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFMG
• Texto Completo: https://doi.org/10.1590/0103-8478cr20200871; http://hdl.handle.net/1843/59803; https://orcid.org/0000-0002-4450-6586; https://orcid.org/0000-0001-6039-1240; https://orcid.org/0000-0003-3214-6111; https://orcid.org/0000-0001-5196-0851; https://orcid.org/0000-0002-0750-0038
• topic: Biocarbon; organic fertilization; Organic wastes; waste recycling; Carvão vegetal; Adubação orgânica; Residuos orgânicos; Residuos organicos -- Reaproveitamento

In recent years there has been a growing interest in the use of organic waste in agriculture. In this way, was aimed with this study to evaluate the biochar from pequi shell (Caryocar brasiliense Cambess) on the soil chemical properties and on the production and nutrition of common bean plants. The experiment was carried out in pots with soil (4 dm3 ~ 5,44 kg), in a completely randomized experimental design, 4 x 3 + 2 factorial scheme, with four replications. The treatments were four doses of biochar (0.0, 2.5, 5.0, 7.5 and 10.0 % v/v), three different particle size (G1, <0.5 mm; G2, 0.5-1,0 mm and G3, 1.0-2.0 mm) and two control treatments, one without and another with addition of soil corrective acidity. The biochar from pequi shell acted as a corrective of soil acidity and as a source of potassium for the plants. However, in higher doses of biochar there was a decrease in bean plants production due to nutritional imbalances.