Research Article

Small-Scale Variability in the Soil Microbial Community Structure in a Semideveloped Farm in Zambia

Figure 2

Mean ± SD soil contents of NO3-N and NH4+-N under different land use types. Different letters above the bars indicate significant differences in NO3-N (lowercase letters) and NH4+-N (uppercase letters) among land use types (one-way ANOVA, ) ( for forest, grassland, watermelon, and maize sites, resp.).