Research Article
Nitrogen Availability and Uptake by Sugarbeet in Years Following a Manure Application
Table 6
Treatment and contrast class mean values for soil (0–30 cm) inorganic N concentrations in spring (before and after planting), cumulative net N mineralization, and cumulative available N during the growing season.
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†NE-Fert: noneroded fertilizer (all other treatments on eroded soil); m1: manure-1x; m3: manure-3x; y1, y2, y3: fall manure applied 1, 2, and 3 years in the past, respectively; manure: m1 + m3; No manure: NEFert + Control + Fert. ‡For a given yield or quality parameter, treatment means or means for individual orthogonal contrasts followed by the same lower case letter are not significantly different (). Not displayed if effect was not significant in the ANOVA. |