Farmers have been growing tomatoes in greenhouses for almost 100 years . consort to the National Sustainable Agriculture Information Service ( ATTRA ) , tomatoes are the " leading nursery vegetable crop in the United States and Canada . " As a result , there are many successful techniques for acquire Lycopersicon esculentum in greenhouses . One matter that they all have in rough-cut is the optimum temperature for generating a successful tomato harvest time .

Daytime Temperatures

During the day , nursery temperature should stay between 75 and 85 degrees Fahrenheit . temperature in this range of a function boost plant life growth and yield production . This range also discourages growing of sure fungal diseases like gray stamp . ATTRA suggests that fan - free-base heating system keep temperatures more consistent throughout the greenhouse and recommends their function . Other heating systems may reserve for 10- to 15 - level temperature variations within the greenhouse . Variations this meaning can compromise crop quality and amount , as well as increasing disease risks .

Overnight Temperatures

Ideally , overnight nursery temperatures should not accrue below 60 degrees F. Temperatures that systematically fall below this tier are potential to result in poor pollenation , unnatural yield development and poor solution - organization development . cool temperatures also make plants more susceptible to fungal infections like grey-haired moulding and early blight . Tomato form specifically designed for greenhouse growth are peculiarly sensitive to cooler temperatures . airfield variety show are jolly hearty , but will still have trouble .

Maximum Temperatures

As out-of-door temperatures fond , greenhouse temperature should not exceed 95 degree F. temperature this mellow reduce ascendent ontogeny and lead in unnatural vividness growing on the inside and outside of tomato plant fruit . If your glasshouse is in a warmer climate , increasing roof height help keep warm temperature forth from tomato plant plants . Proper ventilation is authoritative to aid keep temperature under control . Greenhouses need an effective external respiration scheme to keep air circulation .

Humidity and Ventilation

ascertain humidness levels in your greenhouse make it easier to regulate temperatures . Humidity levels below 80 per centum discourage fungal disease growing . Lower humidness levels make evaporative climate control systems more effective and facilitate reduce heating and cooling costs . Good ventilation aid to reduce humidity to appropriate level . ventilation system is necessary at all degree of your greenhouse , from an adequate roof height to proper plant space . Pruning bottom leaf also promote ventilation . Be indisputable to slay all pruning from the nursery to discourage fungous ontogeny .

Alternate Heating Systems

If you want to heat up your glasshouse at reason degree , consider using heating tobacco pipe . tobacco pipe warm up the air at the base of the nursery . As the passion arise , it forces cooler melodic line at the top of the greenhouse downwardly . This mental process encourages dependable airflow within the greenhouse . Whatever organization you take , temperature ordinance and command are most effective with proper circulation and humidness command .

References

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