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| Season extension |
- Earliness: 3 weeks earlier using a combination of row cover and tunnels.
- Autumn protection; secure production to into the autumn depending on the time of the first severe frosts
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| Class one yield |
- Example 30% to 35% higher class one yield for many cut flowers.
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| Class One % |
- For example 15% higher class one percentage (normally from 70 to 75% to 85 to 90% class one) for strawberries
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| Spray days |
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| Harvest days |
- Guaranteed harvest days (no stopping pickers because it is raining!)
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| Lower moisture related disease |
- Significant reduction in moisture related diseases such as botrytis, black spot, downey mildew and monilinia. About 55% of our production at Haygrove is organic and all under tunnels.
- The tunnel also can provide a good infrastructure for biological controls and insect net etc
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| Ability to deploy polythene, shade net, insect net on the same structure |
- This has been excellent for crops that need rain cover at certain times, but only shade at other times (e.g. ornamentals, seedlings etc)
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| Benefits versus steel permanent greenhouses: |
- Better venting than fixed vent tunnels
- Moveable
- No site levelling required
- Simpler and quicker to build.
- Significantly lower cost
- Ability to add gantry rails for carrying and picking trolleys etc
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