I am a newbie in the field of horticulture. While going through this site, I came across the term "Polyhouse farming". Can someone please help me understand the difference between Polyhouse and Greenhouse from the following viewpoints?
1. Types of crops that can be grown profitably in each. (exotic or regular)
2. Available Subsidies for each type.
3. Initial investment & setup costs for each.
4. Maintenance costs for each.
Thanking you in advance for your time and response.