Fig. 4. Total soil inorganic C content (mg C g-1 soil) from the no-plant control, wheat, and soybean treatments without fertilization (Zero NPK) at the end of the experiment. Each error bar represents one standard error.
Fig. 4. Total soil inorganic C content (mg C g-1 soil) from the no-plant control, wheat, and soybean treatments without fertilization (Zero NPK) at the end of the experiment. Each error bar represents one standard error.