Mapeamento de atributos físicos do solo em sistemas de integração Lavoura-Pecuária (ILP).
Mapeamento de atributos físicos do solo em sistemas de integração Lavoura-Pecuária (ILP).
Author(s): ESPINHA, H. P. G.; MAGALHÃES, C. A. de S.; FREDDI, O. da S.
Summary: Resumo: O estudo realizado aborda a crescente adoção de sistemas integrados na agricultura para atender à demanda global por alimentos, fibras e energia, visando aumentar a produção sem expandir as áreas produtivas. No entanto, a intensificação do uso da terra sem planejamento pode causar degradação do solo e contaminação dos recursos hídricos. Foram avaliados e comparados atributos de solo em quatro sistemas de produção de grãos e carne. Os resultados mostraram alta compactação do solo na camada 0,10-0,20 m do solo, com tendência de maior impacto nos sistemas com pastejo animal. Os sistemas de produção de grãos apresentaram valores menores, mas ainda sim com restrições ao crescimento radicular das culturas. Conclui-se que o uso intensivo do solo resultou em piora de atributos físicos do solo, podendo limitar a produção e comprometer a sustentabilidade do sistema. | Abstract: The study carried out addresses the growing adoption of integrated systems in agriculture to meet the global demand for food, fiber and energy, increasing production without expanding productive areas. However, unplanned intensification of land use can cause soil manipulation and contamination of water resources. Integrated grain and meat production systems were evaluated and compared with exclusive systems after 12 years. The results showed that the Gaussian model had an excellent fit for some systems. Excessive soil compaction was observed in all models in the 0.10-0.20 m soil layer, with the 4-ILP1 and 3-PEC treatments tending towards similarity, showing a greater negative impact on the entire sampled soil profile. 2-LAV and 5-ILP2 presented lower values, but still with certain limitations to the root growth of the crops. It is concluded that the extensive use of the cultivated area affects the physical characteristics of the soil, resulted in a worsening of the physical attributes of the soil, which could limit production and compromise the sustainability of the system.
Publication year: 2024
Types of publication: Paper in annals and proceedings
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