ASSESSING THE EFFECTS OF LONG-TERM SORGHUM-SOYBEAN ROTATION GIVEN FOUR NITROGENOUS FERTILIZER TREATMENTS (CROPPING SYSTEMS, BULK DENSITY, MINERALIZATION, MICROBIAL BIOMASS, PATTERN)
SANTOS, JOSE REYNALDO ANDAN.
The University of Nebraska - Lincoln ProQuest Dissertations & Theses, 1985. 8516882.