The greenhouse is not a luxury, but a harsh necessity, not only in the northern regions, but also in the south. The question is what you will protect plants from - from cold, precipitation or... heat. Yes, even a greenhouse can protect against it, you just need to know which materials and structures are most effective in each specific task facing the summer resident. The most famous follower of natural agriculture in our country - a fashionable trend in agriculture all over the world - Nikolai Ivanovich Kurdyumov in his book will share his experience of extending the season in protected ground and protecting the crop from diseases that deprive summer residents, sometimes, of half of what should have been on their table.