Fig. 6From: Joint interactions of carbon and nitrogen metabolism dominated by bicarbonate and nitrogen in Orychophragmus violaceus and Brassica napus under simulated karst habitatsThe carbon and nitrogen joint effects in Bn and Ov under simulated karst habitats. ↑: joint promotion; −: no significant conjugation; ↓: joint inhibition; Ov: the yellow line indicates the joint interactions of bicarbonate and ammonium, and the blue line indicates the joint interactions of bicarbonate and ammonium; Bn: the red line indicates the joint interactions of bicarbonate and ammonium, and the purple line indicates the joint interactions of bicarbonate and nitrateBack to article page