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Periodical article Periodical article
Title:Economic application rates of nitrogen and phosphorous fertilizers' for maize grown on black clay soil (vertisols) of Alemaya areas, Ethiopia
Authors:Ermias D.
Heluf G.
Year:2008
Periodical:Ethiopian Journal of Agricultural Economics
Volume:7
Issue:1
Period:June
Pages:107-121
Language:English
Notes:biblio. refs., ills.
Geographic terms:Ethiopia
Northeast Africa
Subjects:Agriculture, Agronomy, Forestry
fertilizers
Agriculture--Economic aspects
Vertisols
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