Franco, Avílio Antônio, and Johanna Döbereiner. “Interference of Calcium and Nitrogen in Symbiotic Nitrogen Fixation of Two Bean Varieties (Phaseolus Vulgaris L.)”. Pesquisa Agropecuaria Brasileira 3, no. 1 (April 15, 2014): 223–227. Accessed October 14, 2026. https://apct.sede.embrapa.br/pab/article/view/17941.