The authors regret an error in Table 3 of the above paper that gives the amount of Phosphate applied to the experiments. These are shown as kg P2O5 ha−1 for 1962–1978, but labelled as kg P ha−1 not P2O5 for 1980–1987 although the data are kg P2O5 ha−1. Below we provide a revised Table 3 with the correct data, all as kg P ha−1. The amounts of P applied were not used in the analyses of the data, so the error had no effect on the Results, Discussion and Conclusions.
Table 3.
Phosphorus (P) applications to the Rothamsted and Woburn long-term liming experiments, 1962–1996.
| Harvest yeara | P applied (kg P ha−1 yr−1) | ||||
|---|---|---|---|---|---|
| 1962–1980: | Control (0) | +P | |||
| 1962–1978b | 0 | 27.5 | |||
| 1968, 1974c | 0 | 55.0 | |||
| TOTAL 1962–1980: kg P ha−1 | 0 | 495 | |||
| 1981–1996d: | Control (P0) | P1 | P2 | P3 | |
| 1981 | Rothamsted | 0 | 25 | 25 | 75 |
| Woburn | 0 | 25 | 25 | 75 | |
| 1982 | Rothamsted | 0 | 50 | 0 | 50 |
| Woburn | 0 | 50 | 0 | 50 | |
| 1983 | Rothamsted | 0 | 0 | 50 | 50 |
| Woburn | 0 | 50 | 50 | 100 | |
| 1988 | Rothamsted | 0 | 25 | 25 | 75 |
| Woburn | 0 | 25 | 25 | 75 | |
| TOTAL 1981–1996: kg P ha−1 | |||||
| Rothamsted | 0 | 100 | 100 | 250 | |
| Woburn | 0 | 150 | 100 | 300 | |
P applied in the spring, except for Woburn 1964 and 1981, and Rothamsted 1981 and 1988, when applied the previous autumn.
No P applied in the fallow years 1969, 1979, 1980.
Higher P rate applied to potatoes in 1968 and 1974.
From 1981 onwards the two P treatments (control, +P) were divided into four P treatments (control, P1, P2 and P3). Eight of the control plots were made into a new control (P0) and the other eight became a P1 treatment, similarly the +P plots were made into P2 and P3 treatments. P was applied in the four years indicated, with no P applied 1989–1996.
The authors would like to apologise for any inconvenience caused.
The correct data are also available from the Electronic Rothamsted Archive (e-RA https://www.era.rothamsted.ac.uk/), see Glendining (2020a, 2020b):
Glendining M.J. (2020a) Rothamsted long-term liming experiment lime and fertilizer treatments 1962–1996. Electronic Rothamsted Archive, Rothamsted Research, Harpenden UK. https://doi.org/10.23637/rcs10-Treatments-01
Glendining M.J. (2020b) Woburn long-term liming experiment lime and fertilizer treatments 1962–1996. Electronic Rothamsted Archive, Rothamsted Research, Harpenden UK. https://doi.org/10.23637/wcs10-Treatments-01