Date of this Version
Thesis (M.S.)--University of Nebraska--Lincoln, 1967. Department of Agronomy.
Zinc has been known to be an essential nutrient for plant growth for many years. Zinc deficiency is quite common in Nebraska but is largely associated with sandy soils low in organic matter which are either acid or calcareous or on the subsoil materials of soils which have been graded or severely eroded. The principle objective of this study was to evaluate a new phosphatic material, ammonium polyphosphate, as a carrier of phosphorus and zinc. Generally, it appears that Zn incorporated into phosphatic fertilizers at the P:Zn ratio of 13:3 or smaller will effectively correct Zn deficiency.
Advisor: Robert A. Olson.