Vegetative indices for evaluation of the agronomic performance of black oats irrigated with slaughterhouse effluent - Godoy, Felipe Oliva de; Carvalho, Ana Paula Pereira; Trevisan, Lucas Renato; Brichi, Lisiane; Rossi, Fabrício; Gomes, Tamara Maria (International Journal of Recycling of Organic Waste in Agriculture, 2026)