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Science 28 July 1978:
Vol. 201. no. 4353, pp. 317 - 320
DOI: 10.1126/science.663657
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Articles

Science, Vol 201, Issue 4353, 317-320
Copyright © 1978 by American Association for the Advancement of Science

articles

Limits to growth in world food production

NF Jensen

The dramatic increases in wheat yields that began in the mid-1930's in the United States will soon begin to level off. The favorable mix of genetics and technology that has characterized this era must build upon an ever higher yield base for the future. At the same time the residue of factors that can lower wheat yields includes a larger proportion of forces not easily shaped or controlled by man. An example is weather. The result is a natural yield ceiling that is already visible and that will impose a limit on future productivity growth.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Genetic Improvement of Grain Yield and Associated Traits in the Northern China Winter Wheat Region from 1960 to 2000.
Y. Zhou, Z. H. He, X. X. Sui, X. C. Xia, X. K. Zhang, and G. S. Zhang (2007)
Crop Sci. 47, 245-253
   Abstract »    Full Text »    PDF »
Soil and land potential.
S. T. Trudgill, S. T. Trudgill, and D. J. Briggs (1980)
Progress in Physical Geography 4, 262-275
   PDF »


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