Greenhouse Functions & Maintenance Horticulture II: 7.01-9.02.

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Presentation transcript:

Greenhouse Functions & Maintenance Horticulture II:

Greenhouse effect The way greenhouses collect and store heat from the sun. Radiant energy warms the greenhouse and its contents. Greenhouses lose heat through the plastic, glass, etc. and additional heat has to be provided especially in winter.

So Why Have a Greenhouse? To provide a protective environment for crop production.

Greenhouse Types Gable Roof can be brought together by ridges

Temperature Controlling Heat & Air Heat is the 2 nd highest expense after labor Controls Thermostat Aspirated Thermostat Thermistor Exhaust Fan Cool Cell Cool Cell Louver Sump Pump/Tank Heater Roof Vent

Light Controlling Amount of light and darkness Controls Photocell Shade/Black Cloth Light Bulbs Timer

Moisture Controlling Watering & Humidity Controls Centralized Control System Drip irrigation Humidistat/Humidifier Misters/Sprinklers

8.01-Maintenance Items Temperature o Heaters-adequate clean fuel o Thermostats working properly o Fans, Fan motors, belts, etc-work o Cooling pads-adequate water and clean o Shade cloth-attached and is at right percentage Light o Shade Cloth-attached or removed o Light bulbs-all work o Photocells & Timers-work correctly

8.01-Maintenance Items Moisture o Humidistat & Fogging/Mist Systems-work properly o Water lines & faucets-no leaks and adequate source of high quality and clean water Sanitation o Diseases, Weeds & Insects-controlled by prevention methods

General Maintenance What Goes Where? Structural Controls & Equipment Utilities