Reinhardt, D. H. R., & Cunha, G. A. P. da. (2014). Determination of weed competition critical period in ’Pérola’ pineapple. Pesquisa Agropecuaria Brasileira, 19(4), 461–467. https://doi.org/10.1590/S1678-3921.pab1984.v19.15539