Thank you 渐渐. Why not come back as well? The city is much more different from the old one many years ago when you left. However you won't be able to plant beautiful flowers around your home again.
I hope it was so that I can breath nature air mixed with nature fertilizer.
But you are right, the picture was taken from a residential building near this vegetable farm. Unfortunately this farm will soon be replaced by another resident community probably next winter. I will go there this autumn and see if I can steal some stuff like fresh corns.
Poor plowland in Beijing, it might be permanently changed.