Visual assessment of pasture degradation: validation by ground cover and seasonal variation. Revista Ciência Agronômica, [S. l.], v. 49, n. 1, p. 174–182, 2023. Disponível em: https://periodicos.ufc.br/revistacienciaagronomica/article/view/88726. Acesso em: 3 mar. 2026.