“Soil Enzyme Activities under Pig Slurry Addition and Different Tillage Systems - Doi: 10.4025 actasciagron.V33i4.9816”. Acta Scientiarum. Agronomy 33, no. 4 (maio 4, 2011): 729–737. Acesso em junho 1, 2026. https://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/9816.