Soybean yield response to nitrogen and sulfur fertilization in the United States: contribution of soil N and N fixation processes

Luiz Felipe Almeida, Adrián A. Correndo, Jeremy Ross, Mark A. Licht, Shaun N. Casteel, Maninder P. Singh, Seth L. Naeve, Rachel Vann, José Bais, Hans Kandel, Laura E. Lindsey, Shawn P. Conley, Jonathan Kleinjan, Péter Kovács, Dan Berning, Trevor J. Hefley, Mark S. Reiter, David Lee Holshouser, Ignacio A. Ciampitti