Ayres, Marta Iria da Costa, and Sonia Sena Alfaia. “Yield of cupuaçu Fruits in Response to Liming and Potassium Fertilization in Agroforestry Systems in the Western Amazon”. Pesquisa Agropecuaria Brasileira 42, no. 7 (July 1, 2007): 957–963. Accessed November 11, 2025. https://apct.sede.embrapa.br/pab/article/view/7653.