Hostname: page-component-76fb5796d-vvkck Total loading time: 0 Render date: 2024-04-27T23:43:22.481Z Has data issue: false hasContentIssue false
  • English
  • Français

The determination and economic analysis of relationships between plant population and yield of main crop potatoes

Published online by Cambridge University Press:  27 March 2009

P. R. Sharpe  and
J. B. Dent
P. R. Sharpe
Affiliation:
Department of Agriculture, University of Reading
J. B. Dent
Affiliation:
Department of Agriculture, University of Reading
Get access Rights & Permissions [Opens in a new window]

Summary

Two experiments designed to provide data for the estimation of functional relationships, which may be used to determine economically optimum plant populations and planting patterns in Desire'e potatoes, are described. Functional relationships between the number of main stems per acre and yield per acre were estimated from the results of experiment (i). Experiment (ii) investigated the relationship between stem number per tuber and seed tuber weight. ‘Square root’ functions estimated for seed yield and ware yield from the results of Exp. (i) were used to calculate a total Financial Returns curve. This returns curve, together with the Cobb-Douglas function estimated from the results of Exp. (ii), was used to calculate the stem numbers per acre, which would give maximum returns per acre and economically optimum returns in different cost/price situations.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 70 , Issue 2 , April 1968 , pp. 123 - 129
Copyright
Copyright © Cambridge University Press 1968

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

Bleasdale, J. K. A. (1965). Relationships between set characters and yield in maincrop potatoes. J. agric. Sci., Camb. 64, 361–65.CrossRefGoogle Scholar
Boyd, D. A. & Lessells, W. J. (1954). The effect of seed rate on the yield of potatoes. J. agric. Sci., Camb. 44, 465–76.CrossRefGoogle Scholar
Bremner, P. M. & El Saeed, A. K. (1963). The Growth of the Potato, pp. 267–80. London: Butterworths.Google Scholar
Davies, G. J. (1954). Potato spacing experiments, the effect of irregularity on yield 1950–52. Rep. natn. Inst. agric. Engng no. 38, pp. 28.Google Scholar
Ezekiel, M. & Fox, K. A. (1959). Methods of Correlation and Regression Analysis, 3rd ed., pp. 548. New York: John Wiley and Sons Inc.Google Scholar
Holliday, R. (1960). Plant population and crop yield. Part II. Fid Crop Abstr. 13, 247–54.Google Scholar
Reestman, A. J. & De Wit, C. T. (1959). Yield and size distribution of potatoes as influenced by seed rate. Neth. J. agric Sci. 7, 257–68.Google Scholar
Toosey, R. D. (1960). Effect of number of sprouts per set on the growth yield and grading of main crop potatoes. M. Sc. Thesis Univ. Reading.Google Scholar