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Persistence of herbage treatment effects in barley and consequences for subsequent crop experimentation

Published online by Cambridge University Press:  27 March 2009

N. A. Fairey
Affiliation:
Agriculture Canada Research Station, PO Box 29, Beaverlodge, Alberta, Canada T0H 0C0
L. P. Lefkovitch
Affiliation:
Agriculture Canada Research Branch, Research Program Service, Ottawa, Ontario, Canada K1A 0C6

Summary

A study, conducted in the Peace region of Canada, determined the effects of the stand and management treatments of four herbage experiments (1986–88) on the yield and quality of subsequent crops of barley (Hordeum vulgare L.) harvested in 1989 and 1990. Quantitative relationships indicated that the crop management treatments most conducive to good yield and quality of herbage were also the most beneficial for subsequent high yield and quality of the barley grain. Unless designs orthogonal to those previously used can be found, covariance adjustment procedures are recommended to minimize the residual effects of previous experiments.

Type
Crops and Soils
Copyright
Copyright © Cambridge University Press 1993

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References

REFERENCES

Fairey, N. A. (1991). Effects of nitrogen fertilizer, cutting frequency, and companion legume on herbage production and quality of four grasses. Canadian Journal of Plant Science 71, 717725.CrossRefGoogle Scholar
Hennig, A. M. F. & Rice, W. A. (1977). Effects of date of sod breaking on nitrogen requirements and yield of barley following fescue in rotation. Canadian Journal of Soil Science 57, 477485.CrossRefGoogle Scholar
Hoyt, P. B. & Hennig, A. M. F. (1971). Effect of alfalfa and grasses on yield of subsequent wheat crops and some chemical properties of a Gray Wooded soil. Canadian Journal of Soil Science 51, 177183.CrossRefGoogle Scholar
Hoyt, P. B. & Leitch, R. H. (1983). Effects of forage legume species on soil moisture, nitrogen, and yield of succeeding barley crops. Canadian Journal of Soil Science 63, 125136.CrossRefGoogle Scholar
Lawes Agricultural Trust (1987). Genstat 5 Reference Manual. Genstat 5 Committee, Rothamsted Experimental Station. Oxford: Clarendon Press.Google Scholar
Lefkovitch, L. P. (1992). Designing experiments having treatments and covariates. Biometrical Journal 34, 515527.CrossRefGoogle Scholar