Date of Award


Document Type


Degree Name

Master of Science

Degree Discipline



The yield response of soybeans, sunflowers and peanuts to zinc fertilization, applied as aqueous ZnSOu, to the Hockley fine sandy loam of the Prairie View A§M University farm was studied in a 3 x 4 x 4 factorial field plot experiment. The relationship between zinc applied to the soil as the only amendment and the concentrations of zinc, nitrogen, phosphorous and potassium in the respective plant tissues at the 4th, 8th and 16th week (or harvest) stages during the growth period was studied.

Soybean yields, which were significantly sensitive to zinc application up to the 10 lb Zn++/acre rate, were just above average yields obtained for Waller County. Sunflower yields were increased gradually over similar zinc application rates. Increasing zinc application rate to 15 lb/acre resulted in significant decrease in the yields of both soybeans and sunflowers. There was a significant decrease in peanut yields with zinc application.

The zinc concentration of all of the plant tissues decreased as the plants aged or matured, regardless of the level of zinc applied. The much larger sunflower plants contained the greatest concentrations of zinc, that is, zinc up take was greatest in these plants.

Committee Chair/Advisor

A. S. Managroo

Committee Member

E. A. Brams

Committee Member

J. I. Kirkwood

Committee Member

J. B. Collins

Committee Member

C. D. Knotts


Prairie View A&M University


© 2021 Prairie View A & M University

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Date of Digitization


Contributing Institution

John B Coleman Library

City of Publication

Prairie View





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