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The comparison of five response curves for representing the relationship between the annual dry-matter yield of grass herbage and fertilizer nitrogen

Published online by Cambridge University Press:  27 March 2009

P. E. Sparrow
P. E. Sparrow
Affiliation:
Smith, Kline & French Labs. Ltd.,The Mundells, Welwyn Garden City, Herts., AL7 1EY
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Summary

The results of 84 experiments with six levels of nitrogen were used to investigateresponse curves relating the dry-matter yield of grass herbage to fertilizer nitrogen. Of the five curves tested, the inverse quadratic represented the relationship well, although no one curve fitted best on all experiments.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 93 , Issue 3 , December 1979 , pp. 513 - 520
Copyright
Copyright © Cambridge University Press 1979

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References

Boyd, D. A., Yuen, L. T. K. & Needham, P. (1976). Nitrogen requirement of cereals. 1. Response curves. Journal of Agricultural Science, Cambridge 87, 149–162.CrossRefGoogle Scholar
Campbell, N. A. & Keay, J. (1970). Flexible techniques in describing mathematically a range of response curves of pasture species. Proceedings of the Eleventh International Grassland Congress, Surfers Paradise, Queensland, pp. 332–334.Google Scholar
Cowling, D. W. & Lockyer, D. R. (1965). A comparison of the reaction of different grass species to fertilizer nitrogen and to growth in association with white clover. I. Yield of dry matter. Journal of the British Grassland Society 20, 197–204.CrossRefGoogle Scholar
De Boer, T. A. (1966). Nitrogen effect on the herbage production of grasslands on different sites. Proceedings of the Tenth International Grassland Congress, Helsinki, pp. 199–204.Google Scholar
Greenwood, D. J., Wood, J. T., Cleaves, T. J. & Hunt, J. (1971).A theory for fertilizer response. Journal of Agricultural Science, Cambridge 77, 511–523.CrossRefGoogle Scholar
Helyar, K. R. & Godden, D. P. (1977). The biology and modelling of fertilizer response. Journal of the Australian Institute of Agricultural Science 43, 22–30.Google Scholar
Hinkley, D. V. (1969). Inference about the intersection in two-phase regression. Biometrika 56, 495–504.CrossRefGoogle Scholar
Hunt, I. V. (1966). The effect of utilization of herbage on the response to fertilizer nitrogen. Proceedings of the Ninth International Grassland Congress, Sao Paulo,1965, pp. 1113–1119.Google Scholar
Jónsson, L. (1974). On the choice of a production function model for nitrogen fertilization on small grains in Sweden. Swedish Journal of Agricultural Research 4 87–97.Google Scholar
Kriel, W., Wacker, G., Kalthofen, H. & Hey, E. (1966). Heavy fertilizing to pasture. Proceedings of the Ninth International Grassland Congress, Sao Paulo 1965, pp. 1093–1098.Google Scholar
Lee, G. R., Davies, L. H., Abmitaoe, E. R. & Hood, A. E. M. (1977). The effects of rates of nitrogen application on seven perennial ryegrass varieties. Journal of the British Grassland Society 32, 83–87.CrossRefGoogle Scholar
Morrison, J. & Jackson, M. V. (1976). The response of grass to fertilizer nitrogen. Span 19, 34–37.Google Scholar
Morrison, J., Jackson, M. V. & Williams, T. E. (1975). Variation in the response of grass to fertilizer N in relation to the environment. Proceedings of the Fertilizer Society, London 1974 142, 28–37.Google Scholar
Nelder, J. A. (1966). Inverse polynomials, a useful group of multi-factor responses. Biometrics 22, 128–141.CrossRefGoogle Scholar
Reid, D. (1966). The response of herbage yields and quality to a wide range of nitrogen application rates. Proceedings of the Tenth International Grassland Congress, Helsinki, pp. 209–213.Google Scholar
Reid, D. (1970). The effects of a wide range of nitrogen application rates on the yields from a perennial ryegrass sward with and without white clover. Journal of Agricultural Science, Cambridge 74, 227–240.CrossRefGoogle Scholar
Reid, D. (1978). The effects of frequency of defoliation on the yield response of a perennial ryegrass sward to a wide range of nitrogen application rates. Journal of Agricultural Science, Cambridge 90, 447–457.CrossRefGoogle Scholar
Sparrow, P. E. (1979). Nitrogen response curves of spring barley. Journal of Agricultural Science, Cambridge 92, 307–317.CrossRefGoogle Scholar