Q.where to grow blueberries
My name is Sanahin Tikranian and I live in Iran. I was looking for some information regarding producing blueberry. I have been thinking of producing blueberry for a few years and now I have made my mind to do so. I have ordered around 1500 bushes of blueberry but I have some problems in choosing the right place to grow them. I was hoping you, as an expert in this area, could help me. Here are some of my questions:
1. What are the most important criteria in site selection (for the farm)?
2. On average, how many sunny days are required and, in general, what kind of climate is required for producing blueberries?
3. In what altitude should the farm be located?
4. What is the minimum temperature that berries can tolerate?
I will appreciate it a lot if you could help me and share this information with me.

Here are links with more information for you.
https://www.gardeningknowhow.com/edible/fruits/blueberries/growing-blueberry.htm
https://www.gardeningknowhow.com/edible/fruits/blueberries/lower-soil-ph-blueberries.htm
https://www.gardeningknowhow.com/edible/fruits/blueberries/blueberry-fertilizer.htm