Figure 2 | Scientific Reports

Figure 2

From: Nitrogen Fertilization Elevated Spatial Heterogeneity of Soil Microbial Biomass Carbon and Nitrogen in Switchgrass and Gamagrass Croplands

Figure 2

Frequency histograms of soil MBC, MBN concentrations and MBC:MBN under three fertilization treatments (i.e. NN, LN and HN) in SG (panels a~c) and GG (panels d~f) croplands in a three-year long fertilization experimental site at the Tennessee State University (TSU) Agricultural Research Center in Nashville, TN, USA. The number on the x-axis (i.e. 0.03, 0.08 in panel a) represents a range of (0, 0.03) and (0.03, 0.08), respectively. The abbreviations are referred to Table 1.

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