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Fertilizer Requirements of Rice on the Murrumbidgee Irrigation Area of New South Wales: The Importance of the Rice-Pasture Rotation

Published online by Cambridge University Press:  03 April 2017

E. B. Boerema
Affiliation:
Agricultural Research Station, Yanco, N.S.W., Australia
D. J. McDonald
Affiliation:
Agricultural Research Station, Yanco, N.S.W., Australia

Summary

Nitrogen is the most important, and usually the only, nutrient necessary for high yields of rice in the South Western Riverina of N.S.W. Inclusion of a legume pasture phase in the rotation is a very effective method of improving the nitrogen status of the soil, but small additions of artificial fertilizer at sowing may still be necessary for maximum yields. The addition of phosphatic fertilizers is rarely necessary, except on a few isolated virgin soils, and where pastures are included in the rotation ample phosphate for the rice crop is usually present as a residue from topdressing. Potash and trace-elements do not improve rice yields in this area.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1965

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