Chemical soil attributes evaluated by multivariate techniques and geostatistics in the area with agroforestry and sugarcane in Humaitá, AM, Brazil . Bioscience Journal, Uberlândia, MG, v. 32, n. 1, p. 61–72, 2016. DOI: 10.14393/BJ-v32n1a2016-29421. Disponível em: https://seer.ufu.br/index.php/biosciencejournal/article/view/29421. Acesso em: 13 dec. 2025.