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| Agriculture | 1 |
| Agronomy | 1 |
| Conservation Education | 1 |
| Environment | 1 |
| Land Use | 1 |
| Soil Conservation | 1 |
| Soil Science | 1 |
| Turf Management | 1 |
| World Problems | 1 |
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| Environment | 1 |
Author
| Brown, Lester R. | 1 |
Publication Type
| Journal Articles | 1 |
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Peer reviewedBrown, Lester R. – Environment, 1978
Natural soil fertility is now declining on an estimated one-fifth of the world's croplands. Direct evidence of the mounting pressures on the global cropland base is seen in accelerating soil erosion, the spread of deserts, and the loss of cropland to nonfarm uses. (Author/BB)
Descriptors: Agriculture, Agronomy, Conservation Education, Environment
