Citation: M. Arshad et Wt. Frankenberger, Plant growth-regulating substances in the rhizosphere: Microbial production and functions, ADV AGRON, 62, 1998, pp. 45-151
Citation: S. Aref et Mm. Wander, Long-term trends of corn yield and soil organic matter in different crop sequences and soil fertility treatments on the morrow plots, ADV AGRON, 62, 1998, pp. 153-197