Table 1.
Outline of experimental agronomy and sampling events for four experiments in 2016 and 2017
| Year | Exp | Unit | Species | Sowing day | 15N application | Sampling | ||
|---|---|---|---|---|---|---|---|---|
| (BBCH scale) Date |
Volume of solution (L) | Amount of 15N (mg m−1) | ||||||
| 2016 | 1 | 1 | Winter wheat |
(00) 1 October 2015 |
(58) 2 June 2016 |
50.0 | 9.6 |
(89) 20 July 2016 |
| 2 | 3 | Spring barley |
(00) 12 April 2016 |
(55) 10 June 2016 |
50.0 | 9.6 |
(89) 1 August 2016 |
|
| 2017 | 3 | 1 | Spring barley |
(00) 2 April 2017 |
(58) 16 June 2017 |
30.3 | 5.4 |
(69) 23 June 2017 |
| 2 | 36.3 | 6.1 |
(89) 28 July 2017 |
|||||
| 4 | 3 | Ryegrass |
(00) 27 September 2016 |
(39) 20 June 2017 |
43.5 | 6.7 |
(39) 15 July 2017 |
|
BBCH scale is shown in the parentheses. Exp. is an abbreviation for experiment