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Nitrogen and Phosphorus Responses of Sorghum and Corn in Uganda 1
Author(s) -
Jowett David
Publication year - 1971
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1971.00021962006300040043x
Subject(s) - sorghum , agronomy , sorghum bicolor , phosphorus , zea mays , fertilizer , biology , nitrogen , poaceae , nitrogen fertilizer , chemistry , organic chemistry
Seven fertilizer trials testing rates and combinations of N and P were conducted on corn ( Zea mays L.), a grain sorghum variety [ Sorghum bicolor (L) Muench.] and a sorghum hybrid in Uganda in 1964. In general, corn outyielded sorghum, and showed a better response to applied fertilizer, but the interpretation of the results was complicated by a puzzling significant negative NP interaction for sorghum. The results support the hypothesis that sorghum is better adapted to low soil fertility than is corn in Uganda, but such a conclusion cannot be established on the basis of such slender evidence as is here made available.