Root parameters and physical soil attributes with forage growth of PANICUM and UROCHLOAgrasses forage

• Autor(a) principal: Policarpo, Victor Hugo Custodio
• Data de Publicação: 2023
• Outros Autores: Costa, Rones Dias da, Nascimento, Hemython Luis Bandeira, Tavares, Rose Luiza Moraes, Ferreira, Camila Jorge Barnabé, Boldrin, Paulo Fernandes
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Evidência - Ciência e Biotecnologia - Interdisciplinar
• Texto Completo: https://periodicos.unoesc.edu.br/evidencia/article/view/32576
• topic: Capim; Cerrado; Qualidade do solo; Grass; Brazilian Cerrado; Soil quality

The grasses of the Panicum and Urochloa forages are important plant species that improve the physical quality of the soil, due their aggressive root system and rapid establishment. Based on this, the aim of this work was to evaluate the effect of different forage species of the forages Panicum and Urochloa on soil physical quality for two agricultural years. For this purpose, 11 forage cultivars were planted, organized in an experimental design with randomized blocks, containing 3 blocks and 33 experimental plots, with dimensions of 4 x 4 m each plot. This purpose was implemented on November 23, 2019 and the experimental period was from February 20, 2020 to May 12, 2021. Sowing was carried out manually by broadcast, to ensure rapid establishment and ideal plant stand. In 2020, root attributes (tussock population and dry root mass) and soil physics (moisture, resistance to penetration, micro and macroporosity and bulk density) were evaluated. In 2021, the same evaluations were repeated, adding dry root mass, soil aggregates (Mean weight-diameter – MWD and geometric – MWG, percentage of aggregates > 2 mm -AGRI and aggregates > 1 mm.), organic material and the rapid diagnosis of soil structure - RDSS. Principal component analysis was used for data interpretation. The Zuri and Sabiá grass species were the ones that most explained the variations in tussock population and soil moisture. Many of the variables were more expressive in the environment with Zuri grass, indicating the potential of the species compared to the others.