Fig. 3.
Relationship between residue inputs a) aboveground biomass (AB); b) belowground biomass (BB); c) total biomass (TB) and cropping intensity (CI) for different cropping sequences in a Mollisol and a Vertisol at Paraná, Argentina (31°51′ S; 60°32′ W). Bars indicate the standard deviation of the mean.
Table 3.
Cumulative aboveground biomass, belowground biomass and total biomass of different cropping sequences from 2008 to 2010 in a Mollisol and a Vertisol at Paraná, Argentina (31°51′ S; 60°32′ W).
Total grain, glucose, and protein yields were affected by soil (P < 0.001), cropping sequence (P < 0.001) and the interaction soil*cropping sequence (P < 0.01). The highest yields of grain, glucose and protein occurred in the Mollisol and the sequence W/S-M had the highest yields in both soils with the exception of protein yield that was higher in the sequence W/S-W/S (Fig. 4). Soybean monoculture (S-S) or soybean with cover crops (CC/S-CC/S) had the lowest yields, but had better performance in term of their protein yields (Fig. 4c).