Wheat farmers there traditionally plant winter wheat one year, leave the field fallow for a season, and use conventional tillage before the next wheat planting.

Of those, practicallyall were over the Jordan River and its tributaries, which supplymillions of people with water for drinking, bathing, and farming.

It generates its own electricity using wave, wind, and solar power and it produces its own food through farming, aquaculture, and hydroponictechniques.

Tomorrow I'll be focussing on the fertility not of the land, but of the people farming it.

They must also keep farming or breeding records.