Agriculture Reference
In-Depth Information
FIGURE 3: The spring wheat plant biomass (grain + straw) and grain yield (Mg ha -1 )
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.
 
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