Agriculture Reference
In-Depth Information
FIGURE 2:
The N content (kg N ha
-1
) of spring wheat plant biomass (grain + straw) and
grain in 2010 and 2011, as affected by the previous years' treatments in the early- and
late-broccoli systems. Symbols denote a significant difference (P < 0.05) compared to the
crop residue control * or the crop residue with pre-plant N control +, based on a multiple
means comparison with a Dunnett-Hsu adjustment. The se values represent the standard
error of the mean.
