- Senior Agronomist/Horticulturist and Agronomy/Horticulture Manager
- Growers & Assistant Growers
- Plant Biologist
- Ripening Officer Bananas / Exotics
- Grower and Nurser
- Farm Manager
- Floriculture Production Planning Manager
- Agricultural Mechanic / Crop Sprayer Operator
- Technical Services Manager
- Quality Controller
Top 5 -yesterday
- "A generational change is going on in Italy's horti sector"
- Schartner's mall-size greenhouse in Exeter still on hold after judge's ruling
- Strawberry picking robots aim to save California growers
- Monitoring thrips with image technology unique, benificial insects soon to be counted digitally
- Brazil: $1 mln investment in wasabi greenhouse production
Top 5 -last week
- Top tips for growing lettuce in a greenhouse
- UK: Grower reduces greenhouse temperature by more than 6°C during heatwave with no cooling, fog systems
- Taking the wisdom from indoor farming and bringing it into greenhouses
- New packaging for hydroponic fertilizer launched
- "Kawaguchi tomato variety good option for consumer, but also good for the grower"
Top 5 -last month
Preparing for Winter - Greenhouse Insulation
John W. Bartok, Jr.
• Reduce air leaks by weather stripping doors, vents, and fan openings. Lubricate fan shutters frequently so that they close tight. Shut off some fans during the winter and cover openings with insulation or plastic.
• Make certain to apply two layers of poly as glazing. Choose a brand with an infrared inhibitor for the inner layer.
• Insulate the perimeter below ground – installing 1 - 2 inch thick insulation board to feet below ground level will reduce the heat loss from the warm interior soil to the cold ground outside.
• Insulate sidewalls and endwalls to bench height using either a 2 inch foam board, or an inexpensive aluminumcovered
bubble insulation. Insulating existing structures is worthwhile. Cost of foam board insulation is about $1/ sq ft with a payback of less than one heating season.
• Insulate behind sidewall heat pipes. Use insulation board or aluminum-faced building paper to radiate heat back into the greenhouse. Leave an air space next to the wall to prevent frost damage to the wall.
• Install an energy screen and save as much as 20%- 50% on heating costs. Screens trap the heat inside and reduce the heat loss surface area. Tight closures should be maintained where curtains meet sidewalls, framing or gutters. Add roll-up or drop down sidewall screens for additional savings. These can be either manual or mechanized.
• Perform yearly maintenance on boilers, burners and back-up systems. Clean and adjust furnaces and do an efficien-cy test run before heating season. Consider upgrading the efficiency of your system with installation of root-zone
heat tubing, a high-efficiency heater or boiler, or an insulated water tank for heat storage. Cost-effective alternatives to fossil fuels are also available.
If you have more involved greenhouse retrofits in mind, but aren’t sure where to begin, contact the Massachusetts Farm Energy Program at http://www.berkshirepioneerrcd.org/mfep or read up on your options in the Farm Energy Best Management Practices Guide for Greenhouses.
Additional information can also be found in the publication Energy Conservation for Commercial Greenhouses available from the CIT Resource Store, University of Connecticut
Source: University of Massachusetts
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Other news in this sector:
- 2022-08-09 Increase horticulturalist's role in energy market with energy storage systems
- 2022-07-21 Energy efficiency: are you on track for reaching Net Zero?
- 2022-07-21 Energy crisis: anticipating with algorithms
- 2022-07-21 "How much should Hawaii discount electric rates for high-tech farmers?"
- 2022-07-20 Growing efficiency in greenhouses
- 2022-07-13 "Water-cooled LEDs are essential to any expansion"
- 2022-07-08 "Greenhouse growers can play a roll in stabilizing the grit"
- 2022-07-08 Van Gog Kwekerijen and Wittenberg Gemüse start the knitting machine to produce their screens
- 2022-07-05 Making money and improving sustainability with an electric boiler
- 2022-07-05 NZ: growers turn off the heat as coal and gas prices soar
- 2022-07-01 Geothermal greenhouse project in Coz Coz, Chile completed
- 2022-06-30 Trial with with low-emissivity glass is well under way
- 2022-06-30 What all grid regulators and policy makers should know about greenhouses and combined heat power
- 2022-06-27 Tsingsky: Using digital methods to reduce carbon fixation costs to benefit more growers
- 2022-06-27 Two new screens thanks to weaving technology
- 2022-06-22 UK greenhouse heats greenhouse with river water system
- 2022-06-15 A greener greenhouse: solar panels trialed on Wimbledon berries farm
- 2022-06-15 Building sustainability for the MHA nation with a vegetable greenhouse heated by waste gas
- 2022-06-10 Green technology employed to grow berries out of season
- 2022-06-08 "We cannot expect a grower to suddenly become an energy producer"