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Winter wheat in six-course rotations on light land

Published online by Cambridge University Press:  27 March 2009

W. J. Ridgman  and
R. B. Wedgwood
W. J. Ridgman
Affiliation:
Department of Applied Biology, Pembroke Street, Cambridge
R. B. Wedgwood
Affiliation:
Department of Applied Biology, Pembroke Street, Cambridge
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Extract

Hanley & Ridgman (1979) reported the results from three cycles of six-course rotations on light land. The report was based on a rotation of sugar beet, barley, barley, potatoes, barley, barley, with treatments involving replacement of one, two or three of the first three crops by 1-, 2- or 3-year leys, the last three crops acting as test crops. One of the problems of drawing general conclusions from rotation experiments is that the test crops are really part of the experimental treatments and may not be the most suitable crops for determining either the direct effects of the ‘treatment’ crops or the longer-term effects of the rotations themselves.

Type
Short Note
Information
The Journal of Agricultural Science , Volume 99 , Issue 3 , December 1982 , pp. 669 - 671
Copyright
Copyright © Cambridge University Press 1982

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References

Hanley, F. & Ridgman, W. J. (1979). Results from three cycles of six-course rotations on light land. Journal of Agricultural Science, Cambridge 92, 717–728.CrossRefGoogle Scholar
Hanley, F., Ridoman, W. J. & Allen, E. J. (1973). Some effects of the inclusion of leys in a six-course rotation on light land. Journal of Agricultural Science, Cambridge 80, 53–62.CrossRefGoogle Scholar
Hanley, F., Ridgman, W. J. & Jarvis, R. H. (1964). The effect of previous cropping and manuring on the yield of potatoes. Journal of Agricultural Science, Cambridge 62, 39–46.CrossRefGoogle Scholar