Hostname: page-component-848d4c4894-wzw2p Total loading time: 0 Render date: 2024-05-19T14:24:39.408Z Has data issue: false hasContentIssue false
  • English
  • Français

Residual N effect of grazed white clover (Trifolium repens)/ryegrass (Lolium perenne) swards on subsequent yields of spring barley

Published online by Cambridge University Press:  27 March 2009

D. R. Evans ,
T. A. Williams  and
S. A. Mason
D. R. Evans
Affiliation:
AFRC Institute of Grassland and Environmental Research, Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth SY23 3EB, UK
T. A. Williams
Affiliation:
AFRC Institute of Grassland and Environmental Research, Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth SY23 3EB, UK
S. A. Mason
Affiliation:
AFRC Institute of Grassland and Environmental Research, Welsh Plant Breeding Station, Plas Gogerddan, Aberystwyth SY23 3EB, UK
Get access Rights & Permissions [Opens in a new window]

Summary

Residual nitrogen from white clover/ryegrass swards and ryegrass monocultures was quantified in terms of the barley yield obtained after ploughing the swards. Clover/ryegrass swards based on small and medium-leaved cultivars of white clover and ryegrass monocultures were grazed continuously by sheep for 3 years (1984–87) at the Welsh Plant Breeding Station, Aberystwyth, ploughed in the following spring (1988) and then sown with the spring barley cultivar Doublet. Yield of barley obtained after clover/ryegrass mixtures was 50% greater than barley harvested after ryegrass monocultures. Barley yield was 1·6 t/ha more following the white clover cultivars Gwenda and SI84 with ryegrass than following ryegrass monocultures.

Type
Crops and Soils
Information
The Journal of Agricultural Science , Volume 118 , Issue 2 , April 1992 , pp. 175 - 178
Copyright
Copyright © Cambridge University Press 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Cooke, G. W. (1967). The Control of Soil Fertility. London: Crosby Lockwood.Google Scholar
Davies, W. E. (1973). The potential contribution of forage legumes to the nitrogen-protein-energy crisis. Annual Report of the Welsh Plant Breeding Station 1973, 103–110.Google Scholar
Evans, D. R.Williams, T. A. & Mason, S. A. (1990). Contribution of white clover varieties to total sward production under typical farm management. Grass and Forage Science 45, 129–134.CrossRefGoogle Scholar
Johnston, A. E. (1987). Nitrogen - Maximising benefits and minimising problems. Arable crop nutrition and fertiliser use. In Proceedings of an RASE, ADAS, FMA Conference, Sloneleigh.Google Scholar
Watson, E. R. (1963). The influence of subterranean clover pastures on soil fertility. Australian Journal of Agricultural Research 14, 796–807.CrossRefGoogle Scholar