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Effects of high levels of fertilizer on yield of potatoes grown for ware

Published online by Cambridge University Press:  27 March 2009

J. B. A. Rodger  and
G. M. Robertson
J. B. A. Rodger
Affiliation:
The East of Scotland College of Agriculture, Edinburgh
G. M. Robertson
Affiliation:
The East of Scotland College of Agriculture, Edinburgh
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Summary

Nine experiments in the East of Scotland were completed in the years 1966, 1967 and 1968 to test the response of potatoes grown for ware to five levels of a 15½–15½–21 fertilizer applied at rates of 0, 4, 8, 12, 16 and 20 cwt per acre.

1. Mean yield of ware tubers increased up to the highest fertilizer level.

2. Mean yield of small tubers increased only up to the 8 cwt per acre level and then declined.

3. Dry matter content of ware tubers decreased with increasing levels of fertilizer.

4. Increasing fertilizer levels lowered soil pH. At one site this was associated with a significant reduction of common scab on the tubers.

Information

Type
Research Article
Information
The Journal of Agricultural Science , Volume 75 , Issue 1 , August 1970 , pp. 37 - 40
Copyright
Copyright © Cambridge University Press 1970

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References

REFERENCES

Boyd, D. A., Hill, J. Rosemary & Batey, T. (1968). The effect on yield of maincrop potatoes of different methods of fertilizer application. Expl. Husb. no. 16, 13–20.Google Scholar
Gething, P. A. (1968). The effect of form of potash and method of application of compound fertilizer on fertilizer response by potatoes. Expl. Husb. no. 16, 51–62.Google Scholar
Hanley, F., Jarvis, R. H. & Ridgman, W. J. (1965). The effects of fertilizers on bulking of Majestic potatoes. J. agric. Sci., Gamb. 65, 159–69.CrossRefGoogle Scholar
Henderson, R. (1965). Effects of type of potash and rates of nitrogen, phosphate and potassium fertilisers on growth yield and quality of potato crops. J. Sci. Fd Agric. 16, 480–88.CrossRefGoogle Scholar
Potash Ltd. (1964). Potatoes: experiments in Scotland. Report on Field Experiments 1962/63, pp. 9–11.Google Scholar
Potash Ltd. (1965). Potatoes: experiments in Scotland Report on Field Experiments 1963/64, pp. 16–18.Google Scholar
Simpson, K. (1962). Effects of soil-moisture tension and fertilisers on the yield, growth and phosphorus uptake of potatoes. J. Sci. Fd Agric. 13, 236–48.CrossRefGoogle Scholar
Simpson, K. & Crooks, P. (1961). Effects of fertilisers on the yield of potatoes in S.E. Scotland. J. Sci. Fd Agric. 12, 131–37.CrossRefGoogle Scholar
Simpson, K. & Crooks, P. (1966). The effect of fertilisers on the yield of potatoes and seed/ware ratio. Edinb. Sch. Agric. expl Wk 1965, 29–31.Google Scholar
Widdowson, P. V., Penny, A. & Williams, R. J. B. (1967). Experiments comparing the effects on yields of potatoes of three methods of applying three amounts of NPK fertilizer and the residual effects on following winter wheat. J. agric. Sci., Camb. 69, 247.CrossRefGoogle Scholar