EDEM, I. D.; UDOINYANG, U. C.; UDOUNANG, P. I. Tractor Effects on Soil Properties and the Consequences on Cassava (Manihot esculenta Crantz) Yield in Ultisol. International Journal of Environment, [S. l.], v. 4, n. 1, p. 210–223, 2015. DOI: 10.3126/ije.v4i1.12190. Disponível em: https://www.nepjol.info/index.php/IJE/article/view/12190. Acesso em: 26 apr. 2024.