Zanatta, Ana Christina Albuquerque, and Claudio Mário Mundstock. “Effect of Phosphorus and Aluminum Levels on Spike Structures of Wheat”. Pesquisa Agropecuaria Brasileira 26, no. 9 (September 1, 1991): 1351–1363. Accessed March 25, 2026. https://apct.sede.embrapa.br/pab/article/view/3475.