Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-03T05:21:09.615Z Has data issue: false hasContentIssue false
  • English
  • Français

Assessment of results from wheat trials testing varieties and application of nitrogenous fertilizer

Published online by Cambridge University Press:  27 March 2009

J. R. Holbrook ,
W. R. Byrne  and
W. J. Ridgman
J. R. Holbrook
Affiliation:
Northey Farm, Bozeat, Nr Wellingborough, Northanta
W. R. Byrne
Affiliation:
Northey Farm, Bozeat, Nr Wellingborough, Northanta
W. J. Ridgman
Affiliation:
Department of Applied Biology, Pembroke Street, Cambridge
Get access Rights & Permissions [Opens in a new window]

Summary

The analysis of two experiments involving the response of bread-making wheat to application of nitrogenous fertilizer is discussed. It is shown that a step function is required to determine the amount of applied N which optimizes the profit to be obtained from the crop. Varieties varied in their yield response to N and in the amount of applied N at which the ‘step’ took place and it is argued that trials of varieties at a common rate of N application or the reporting of results which are averaged over a number of rates cannot lead to very precise recommendations for growers.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 101 , Issue 2 , October 1983 , pp. 447 - 452
Copyright
Copyright © Cambridge University Press 1983

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

Association Or Official Analytical Chemists (1980). Official First Action 24. 80. 1, 2, 3.Google Scholar
Hodge, C. A. H. & Seale, R. S. (1966). The soils of the district around Cambridge. Memorandum of the Soil Survey of Great Britain, pp. 52–57.Google Scholar
Holbrook, J. R., Osborne, J. D. & Ridgman, W. J. (1982). An attempt to improve yield and quality of direct-drilled winter wheat grown continuously. Journal of Agricultural Science, Cambridge 99, 163–172.Google Scholar
Home-Grown Cereals Authority (1982 a). Cereals Market Information: Statistical Appendices, 09 1982.Google Scholar
Home-Grown Cereals Authority (1982 b). A marketing guide for milling wheat. Supplement to Weekly Bulletin, 16 No. 43.Google Scholar
Ridgman, W. J. (1975). Experimentation in Biology. Glasgow and London: Blackie.Google Scholar