Describe a hydroponic greenhouse.

In a hydroponic greenhouse it is not necessary for plants to be planted in soil. Water flow is
maintained so that the dissolved oxygen levels in the nutrient solution are optimal for plant growth.

type of greenhouse covering, exposed surface area, inside temperature desired, lowest average outside
temperature expected during heating season, wind speed, and condition of covering

Water is pumped to the top of the evaporative cooling pads through an overhead pipe. Water drips
through the pad while the exhaust fans pull outside air through the wet pads, which cools the air
moving through the greenhouse.

The size of the biological filter is determined by: (1) estimating the ammonia produced from the feed
added to the system, (2) the surface area per cubic foot of the selected material, and (3) the necessary
surface area of microorganisms to remove the ammonia to safe levels.

Hydroponics is production technology in plant science that attempts to maximize growth by
stimulating nutrient uptakes.

It would depend on the area to be watered, the crop grown, the weather conditions, the time of the
year, and whether the heating or ventilating system is operating.