Agriculture Reference
In-Depth Information
FIGURE 1: Soil mineral N concentrations in the autumn, spring, and summer after the
2009 and 2010 early- and late-broccoli harvest treatments. 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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