Practice exam #3 - QUESTION 4
Fragment of a discussion from Course talk:APBI200
4.) Biological N2 fixation is the conversion of atmospheric Nitrogen to NO3- and NH4+. Making nitrogen more available to plants.
Ammonium fixation is the adsorption of NH4+ into the interlayer of clay minerals making unavailable to plants.
Phosphate fixation is the reaction of phosphate ions with other minerals in the soil making it unavailable to plants.
MadisonBrown (talk)
good Madison, but what fixes phosphate and how is pH involved - see notes from your classmates
SandraBrown (talk)