| http://www.w3.org/ns/prov#value | - That amounts to 1bn tons more wheat, rice and other cereals and 200 million more tons of beef and other livestock.But as it is, most available land is already being farmed, and in ways that often decrease its productivity through practices that lead to soil erosion and wasting of water.That means that to meet the world's future food needs, a major "sustainable intensification of agricultural prod
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