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An analysis of the relationship between potential evaporation and dry-matter accumulation for winter wheat

Published online by Cambridge University Press:  27 March 2009

C. F. Green ,
L. V. Vaidyanathan  and
M. N. Hough
C. F. Green
Affiliation:
Department of Agriculture and Horticulture, University of Nottingham, School of Agriculture, Sutton Bonington, Loughborough, LE12 5RD
L. V. Vaidyanathan
Affiliation:
Agricultural Development and Advisory Service, Block C, Oovernment Buildings, Brooklands Avenue, Cambridge, CB2 2DR
M. N. Hough
Affiliation:
Meteorological Office, Agricultural Development and Advisory Service, Windsor House, Cornwall Road, Harrogate, North Yorkshire, HO1 2PW
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Summary

Sequential dry-matter measurements for winter wheat crops grown at different sites during different seasons were plotted against accumulated potential evaporation. A relation consisting of two intersecting straight lines represented the observations. Early crop growth had a gentle slope due to an incomplete leaf canopy. Later growth occurred at a rate which depended upon the amount of applied nitrogen, the amount of radiation and the availability of water. The intersection occurred consistently at a leaf area index of 1·25.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 100 , Issue 2 , April 1983 , pp. 351 - 358
Copyright
Copyright © Cambridge University Press 1983

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