(1)
Silveira, P. M. da; Braz, A. J. B. P.; Didonet, A. D. Chlorophyll Meter to Evaluate the Necessity of Nitrogen in Dry Beans. PAB 2003, 38 (9), 1083-1087. https://doi.org/10.1590/S1678-3921.pab2003.v38.6675.