HORTICULTURE SCIENCE
FLORICULTURE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Traditional temperature regimes for greenhouse production are to run ____ days and ____ nights.
|
|
cool, warm
|
|
|
warm, cool
|
|
|
cool, cool
|
|
|
warm, warm
|
Explanation:
Detailed explanation-1: -As the air then moves across the greenhouse, it absorbs energy and the temperature increases. This results in a temperature gradient (lower temperature at the pads and higher temperature at the fans) from the pads to the exhaust fans on the opposite side of the greenhouse.
Detailed explanation-2: -The night temperature of greenhouse crops is generally in the range of 7 to 210C. As the greenhouse is a closed space, the relative humidity of the greenhouse air will be more when compared to the ambient air, due to the moisture added by the evapo-transpiration process.
There is 1 question to complete.