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Consideration for to choice benches
The choice of a greenhouse benching system is affected by many variables. In the past only we consider mainly by labour and cost. These factors are still important, but are important also to consider the changes in production technologies particularly irrigation methods, additional considerations have what kind of plant will put within greenhouse.
So we need to consider these points for choice a bench
The height of the bench is important primarily because of how it impacts people who must handle the plant material. If benches are too low, workers must bend to work with plant materials, and this can result in worker fatigue and even potential health problems. The desired width of a raised bench surface is dictated primarily in cultures labours and harvest. Depending the plant kind we need to select the benches we must to consider that benches needs support the load of plants, containers, and wet soil. The cost is an important point because maybe this is determinant to choice benches therefore is important to compare several brands, companies and kind of benches, if is possible is better to pay a initial high cost, because it may allow a producer to reduce labour, irrigation and fertilizer costs and may in the long-run prove to be economical. Also it is important to consider that benches is adaptable for news technology, if the benching systems in use cannot be adapted to the new technology, they will either have to be replaced or the new technology not utilized in the operation.
Measurement of benches and production cost of Aloe
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Measurement of benches
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First year production cost of Aloe
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Crop: Aloe (14100 plants/ha)
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Activity
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Cost
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Height of Benches: 0.4 m
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Cultures labour
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$ 1000.00
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Length of benches: 47.5 m
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Consumptions and youth plant
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$ 1300.00
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Width of benches: 2.5 m
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Graft
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$ 120.00
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Amount of benches: 60 per hectare
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Total
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$ 2420.00
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Wide aisle: 2.6 m and 1.2 m between benches
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Utilizable area of greenhouse: 71.25%
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