Fig. 6From: Effects of acidic phosphorus-rich biochar from halophyte species on P availability and fractions in alkaline soilsInfluence of halophyte biochar (HBC), H3PO4-modified biochar (P-HBC), and H4P2O7-modified biochar (PA-HBC) on relative proportion of each P fractions in the AS a, BS b, GS c and SS d. Control: untreated soil (CK); AS: aeolian sandy soils; BS: brown desert soils; GS: grey desert soils; SS: saline soilsBack to article page