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Table 2.
Crop management in the oilseed rape/winter wheat/winter barley (OWB) reference cropping system based on expert opinion. The field was ploughed every 6 years before OSR.
| Cultivation technique | Winter oilseed rape | Winter wheat | Winter barley | |
|---|---|---|---|---|
| Plough | No plough | |||
| Residues from previous crop | Buried | Buried | Buried | Buried |
| Tillage | Mouldboard plough (4 July) Harrow (14 July) 2 × spring tine (4 Aug., 19 Aug.) Harrow (24 Aug.) Roll (24 Aug.) |
Covercrop (14 July) Chisel (29 July) Harrow (24 Aug.) Roll (24 Aug.) |
Covercrop (31 July) Chisel (31 Aug.) Spring tine (29 Sept.) Harrow (4 Oct.) |
Covercrop (29 July) Chisel (31 Aug.) Spring tine (30 Sept.) Harrow (4 Oct.) |
| Sowing date | 24 Aug. | 24 Aug. | 4 Oct. | 4 Oct. |
| Sowing density (seeds/m2) | 50 | 50 | 280 | 300 |
| Herbicides | Clomazone + dimetachlore + napropamide (11, 25 Aug.) Quizalofop-éthyl isomère D (1, 18 April) |
Glyphosate (0.5, 14 Aug.) Clomazone + dimetachlore + napropamide (1, 25 Aug.) Quizalofop-éthyl isomère D (1, 18 April) |
Iodosulfuron-méthyl-sodium + mésosulfuron-méthyl (0.6, 29 Feb.) Diflufénicanil + ioxynil + bromoxynil (0.3, 29 Feb.) Florasulame (0.3, 29 Feb.) |
Chlortoluron (1, 31 Oct.) Pendiméthaline + picolinafen (0.7, 31 Oct.) Fluroxypyr + Florasulam (0.5, 14 April) |
| Nitrogen fertiliser (kg/ha) | 70 (1 Feb.) 100 (29 Feb.) |
70 (1 Feb.) 100 (29 Feb.) |
50 (15 Feb.) 80 (14 March) 50 (29 April) |
50 (1 Feb.) 90 14 March) |
| Harvest date | 14 July | 14 July | 19 July | 29 June |
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