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Nitrogen Application for Short-Term Forages in Saudi Arabia. I. Winter Annuals: Wheat, Oats and Italian Ryegrass

Published online by Cambridge University Press:  03 October 2008

P. W. Bartholomew  and
R. J. Williams
P. W. Bartholomew
Affiliation:
University College of North Wales, Bangor, Gwynedd, UK
R. J. Williams
Affiliation:
University College of North Wales, Bangor, Gwynedd, UK
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Summary

Nitrogen fertilizer requirements and potential forage yield of wheat, oats and Italian ryegrass grown under irrigation in Saudi Arabia were assessed. Mexipak wheat produced high DM yields with between 100 and 150 kg/ha N, and the mode of nitrogen application did not significantly affect DM outputs. Nitrogen at 150 kg/ha produced highest DM yields for oats, although the application of 50% of irrigation requirement as drainage water reduced yield by 8%. Italian ryegrass produced a mean yield of 14.6 t/ha in 169 days with a nitrogen application of 60 kg/ha; direct drilled on a field scale it yielded 8.76 t/DM/ha with a total application of 270 kg N/ha.

Type
Research Article
Information
Experimental Agriculture , Volume 17 , Issue 3 , July 1981 , pp. 271 - 279
Copyright
Copyright © Cambridge University Press 1981

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References

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