Effects of high levels of fertilizer on yield of potatoes grown for ware
- 1 August 1970
- journal article
- research article
- Published by Cambridge University Press (CUP) in The Journal of Agricultural Science
- Vol. 75 (1) , 37-40
- https://doi.org/10.1017/s0021859600026022
Abstract
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.Keywords
This publication has 5 references indexed in Scilit:
- 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 wheatThe Journal of Agricultural Science, 1967
- The effects of fertilizers on the bulking of Majestic potatoesThe Journal of Agricultural Science, 1965
- Effects of type of potash and rates of nitrogen, phosphate and potassium in fertilisers on growth, yield and quality of potato cropsJournal of the Science of Food and Agriculture, 1965
- Effects of soil-moisture tension and fertilisers on the yield, growth and phosphorus uptake of potatoesJournal of the Science of Food and Agriculture, 1962
- Effects of fertilisers on the yield of potatoes in S.E. ScotlandJournal of the Science of Food and Agriculture, 1961