@article{articleeba84848,
title   = {Field evaluation of water or citrate soluble phosphorus in modified phosphate rocks for soybean},
author = {Prochnow, Luis Ignacio and Cunha, J F and Ventimiglia, A F C},
year = {2001},
doi = {10.1590/s0103-90162001000100025},
journal   = {Scientia Agricola}
}