Recovery of 15N-labelled fertilizer applied in autumn to winter wheat at four sites in eastern England
- 1 December 1986
- journal article
- research article
- Published by Cambridge University Press (CUP) in The Journal of Agricultural Science
- Vol. 107 (3), 611-620
- https://doi.org/10.1017/s002185960006977x
Abstract
SUMMARY: The recovery of autumn-applied labelled fertilizer N in winter wheat and in the soil and roots was measured in five experiments on three soil types in eastern England. In four of the experiments, crop recoveries of fertilizer N ranged from 11 to 34 % in years when drainage during winter and early spring was close to, or less than, the long-term average of about 200 mm. Crop recovery was higher (42 %) at a site where the soil was heavier and winter drainage was less. Total recoveries (in crop and soil, 0–50 cm) ranged from 22 to 61 %. Fertilizer N was at least risk to leaching when there was a large soil moisture deficit at the time of application. There was a linear relationship between fertilizer N lost and drainage (but not rainfall) between the time of N application and the end of March of the following year. Autumn-applied fertilizer N increased grain yield slightly in two of the experiments and decreased it in a third.Keywords
This publication has 9 references indexed in Scilit:
- The nitrogen cycle in the Broadbalk Wheat Experiment: recovery and losses of 15N-labelled fertilizer applied in spring and inputs of nitrogen from the atmosphereThe Journal of Agricultural Science, 1986
- Tests of amounts and times of application of nitrogen and of sequential sprays of aphicide and fungicides on winter wheat, following either beans or wheat, and the effects of take-all (Gaeumannomyces graminis var. tritici), on two varieties at Saxmundham, Suffolk 1980–3The Journal of Agricultural Science, 1985
- The measurement of15N in soil and plant materialNutrient Cycling in Agroecosystems, 1985
- The effect of straw incorporation on the uptake of nitrogen by winter wheatJournal of the Science of Food and Agriculture, 1985
- A SIMPLE COMPUTER MODEL FOR LEACHING IN STRUCTURED SOILSEuropean Journal of Soil Science, 1977
- Results from experiments measuring the effects of large amounts of an NPK fertilizer on yield, tuber size and N, P and K contents of three potato varietiesThe Journal of Agricultural Science, 1975
- 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
- Experiments measuring the residual effects of nitrogen fertilizersThe Journal of Agricultural Science, 1965
- The effect of nitrogen on cereal yieldsThe Journal of Agricultural Science, 1957