This is my first post on this forum, I stumbled here whilst trying to get information on plastic greenhouses. Basically what I am looking for is a plastic tunnel greenhouse for a family farm. Roughly 30M length, 10 M wide, 5/6 M Height. It must be able to withstand wind speed of 150km/h to meet Israeli standards. From the little I know Im told that a height of 5/6 Meters provides the best results for ventilation.

Some questions I have, and I would be thankful for your input are as follows:

1. Is there any way to estimate the yeild per sq m (For tomatoes, In Israel)?

2. What is the minimum feasible area for cultivation of other vegatables in a plastic greenhouse?

3. I have heard of people using plastic greenhouses with chicken wire for housing chickens, Are such set-ups barn or battery chickens?

Best Regards,
Avi