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Effect of switchgrass plantation on soil

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Table 1. Main soil chemical and physical properties of different layers at a depth of 90 cm at the study site during the growing season
Fig. 1. Total monthly precipitation and mean monthly temperatures at the study site during the growing seasons.
Fig. 2. Dynamics of soil moisture under switchgrass planted in 2006 (SG2006), 2008 (SG2008) and 2009 (SG2009) and under native grasses (NG) during the 2012 and 2013 growing seasons
Fig. 4. Dynamics of soil ammonium nitrogen (NH4+-N) (A) and nitrate nitrogen (NO3--N) (B) under switchgrass planted in 2006 (SG2006), 2008 (SG2008) and 2009 (SG2009) and under native grasses (NG) during the 2012 and 2013 growing seasons
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