Plants absorb zinc as

H_(3)PO_(4) is a tribasic acid with pK_(a_(1)), pK_(a_(2)) and pK_(a_(3)) 1.12, 7.21 , and 12.32 , respectively. 10^(-3)M H_(3)PO_(4)(pH = 7) is used in fertilizers as an aqueous soil digesting. Plants can absorb zinc in water soluble from only. Zinc phosphate is the source of zinc and PO_(4)^(3- ) ions in the soil. K_(sp) of zinc phosphate = 9.1 xx 10^(-33) . [PO_(4)^(3-)] ion in the soil with pH = 7 , is

Plants absorb minerals from the soil :

Plants absorb minerals from the soil :

Plants take zinc in the form of :

Plants absorb phosphates as

Plants absorb sulphur in the form of

Plants absorb sulphur in the form of