Date of Award:
5-1977
Document Type:
Thesis
Degree Name:
Master of Science (MS)
Department:
Wildland Resources
Department name when degree awarded
Range Science
Committee Chair(s)
John P. Workman
Committee
John P. Workman
Committee
John C. Malechek
Committee
Lorin E. Harris
Committee
Jay C. Andersen
Abstract
This paper entails the economic and biological responses of both rangeland grasses and livestock grazing rangeland grasses to nitrogen fertilization. Five sites received graduated rates of fertilizer in previous studies. Analysis showed all sites failed to exhibit a significant carry-over response to fertilization. Determination of optimum rate or optimum reapplication schedule was not possible due to residual nitrogen present in the soil. Spring application of fertilizer produced the greatest returns from one site while the other site studied failed to produce a profitable response from either spring or fall application.
Calf weight gains were shown to be curvilinear and resulted in the production function:
Y = 13.99 + .2049N - .00087N2
where Y is the total pounds of calf gain per acre and N is the pounds of nitrogen applied per acre. Economic analysis of costs and returns of both cow-calf operations and estimates of costs and returns from yearling stockers operations indicated that neither operation was economically feasible.
Checksum
2714bd7b58e92d855e71f76f060ca120
Recommended Citation
Roberts, Dean L. Jr., "Economics of Carry-Over Forage Production, Increased Grazing Season Length, and Increased Livestock Production from Rangeland Fertilization" (1977). All Graduate Theses and Dissertations, Spring 1920 to Summer 2023. 1610.
https://digitalcommons.usu.edu/etd/1610
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