Long-term lime and gypsum amendment increase nitrogen fixation and decrease nitrification and denitrification gene abundances in the rhizosphere and soil in a tropical no-till intercropping system - Bossolani, J. W; Crusciol, C. A. C; Merloti, Luis Fernando; Moretti, L. G; Costa, N. R; Tsai, Siu Mui; Kuramae, E. E (Geoderma, 2020)