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OPTION 44 : RETENTION OF WINTER STUBBLES
Income foregone: | Gross Margin | | | Non- NVZ | NVZ | |
| Winter Wheat | £434.00 | per ha | | | |
| Winter Barley | £385.00 | | | | |
| Spring Barley | £282.00 | | | | |
| Gross Margin average: | | | £367.00 | 364.02497 | |
| 100% yield reduction | | | £367.00 | £364.02 | |
| 15% yield reduction | | | £55.05 | £54.60 | per ha |
Additional costs: | Additional drying costs | | | £18.93 | £18.93 | |
| Additional dressing costs | | | £18.13 | £18.13 | |
| Contractor's charge for ploughing field in spring-time when regular farm staff engaged in other peak-time activities | | | £42.00 | £42.00 | |
| 50% of Contractor's charge, assuming that farmers will plough at least 50% of their spring crop stubbles in the springtime using their own labour/farm staff. | | | £21.00 | £21.00 | |
Costs saved: | Spraying (herbicides & insecticides) costs | | | £16.60 | £16.60 | * |
Sub-TOTAL: | | | | £96.52 | £96.07 | per ha |
Overall cost: | | | | 96.52 | 96.07 | per ha |
Additional drying costs:
| £3.55 | per tonne |
Difference in cost (£/t) between reducing moisture from 20% to 15% and reducing moisture from 16% to 15% | | |
Assumed crop yield from headland: | 6 | tonnes/ha |
Winter wheat | 6 | tonnes/ha |
Winter barley | 4 | tonnes/ha |
Spring barley | | |
| £18.93 | per ha |
Additional drying cost: | | |
Additional dressing costs:
| 0.50 | hour/tonne |
Additional time spent by a worker dressing 1 tonne of grain harvested from the headland | | |
Assumed crop yield from headland: | 6 | tonnes/ha |
Winter wheat | 6 | tonnes/ha |
Winter barley | 4 | tonnes/ha |
Spring barley | | |
| 2.67 | hours/ha |
Additional time spent dressing grain: | £18.13 | per ha |
Additional dressing cost assuming a wage of £6.80/hr | | |
Note * : Spray is assumed to be mecoprop-P @ £5.60 per ha and metsulfuron-methyl @ £11 per ha
Calculation
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