Agriculture in Uzbekistan employs 28% of the country's labor force and contributes 24% of its
GDP (2006 data). Crop agriculture requires irrigation and occurs mainly in river valleys and oases. Cultivable land is 4.4 million
hectares, or about 10% of Uzbekistan's total area, and it has to be shared between crops and cattle. Desert pastures cover fully 50% of the country, but they support only sheep.