Some fertilizer is used, but cow dung is also collected and dried for fuel, or mixed with clay and water to make a type of stucco for the houses. The only trees to speak of are gray poplar, which grow in gullies. There's a few willows by streams. The eastern two thirds of the country is alpine at 8000 - 11000'. Only a few villages are found in that part of the country.
Soils are dark brown basaltic, highly organic.
Vegetation is a kind of grass that grows in tight, widely spaced clumps. No cultivation, no trees. The herd boys have built stone huts every few miles, which come in handy when hiking. Just leave them how you found them. Hail in the summer and snow in the winter are routine.