Hartsig, Theodore Arlett.2015-12-312015-12-311984http://hdl.handle.net/2097/27265Call number: LD2668 .T4 1984 H38Ammonia as fertilizer.Phosphatic fertilizers.Soil biochemistry.Phosphatases.Ammonium and phosphate reactions in the soil: effect on soil phosphatase activityTextMasters theses