Traditional Passive Solar Greenhouse Diy Lean To Greenhouse

A more scientific definition is "a covered structure that protects the plants from extensive external climate con0ditions and diseases, creates optimal growth microenvironment, and offers a flexible solution for sustainableand efficient year-round cultivation." A modern greenhouse operates as a system, therefore it is also referred to as controlled environment agriculture (CEA), controlled environment plant production system (CEPPS), or phytomation system.

Many commercial greenhouses or hothouses are high tech production facilities for vegetables or flowers. The glass greenhouses are filled with equipment including screening installaions, heating, cooling, lighting, and may be controlled by a computer to optimize conditions for plant growth. Different techniques are then used to evaluate optimality-degrees and comfort ratio of greenhouse micro-climate (i.e., air temperature, relative humidity and vapor pressure deficit) in order to reduce production risk prior to cultivation of a specific crop.