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Fig. 1. Split plot design with four replicates of main plot (cover and no-cover) and subplots (manure and compost applied at either the N or P needs of the silage corn crop, as well as commercial fertilizer). Soil cores were taken in Replicate 2 (+). Treatments are designated MN, manure at crop requirement nitrogen rate; CN, compost at crop requirement nitrogen rate; MP, manure at crop requirement phosphorus rate; CP, compost at crop requirement phosphorus rate; and NCK, a commercial fertilizer check. +CC indicates winter wheat cover and –CC is no-cover.
