Namaste, Nepal farms most things but yes cereals are the highest produce as most people mainly eat rice. Fruit & vegetables are also grown on large scale. Not much transport required from the mountains as it is all stored & consumed within the local villages. Season higher in the mountains is about 6 months, below 6,000' all year round. There use of channeled spring water is amazing to be hold.
Any fertile land is step cut & farmed, literally every inch of farm-able land is being cultivated.