Chemical soil attributes evaluated by multivariate techniques and geostatistics in the area with agroforestry and sugarcane in Humaitá, AM, Brazil . Bioscience Journal [online], 2016. [online], vol. 32, no. 1, pp. 61–72. [Accessed13 December 2025]. DOI 10.14393/BJ-v32n1a2016-29421. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/29421.