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Fig. 2. Recovery of N sources at the end of the growing season in corn and in the soil (015 cm) for three N management strategies using 13.3 g N m2 fertilizer N at planting plus sidedress N (FN + SD), 13.3 g N m2 hairy vetch N at planting plus sidedress fertilizer (HVx1.0 + SD), and 20 g N m2 hairy vetch N at planting plus sidedress fertilizer (HVx1.5 + SD). Detailed descriptions of the main treatments are given in Table 2.
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