By Raymond C. Loehr
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Additional info for Agricultural Waste Management: Problems, Processes and Approaches
S. per capita food consumption in 1970 was 6% greater than that in 1960. If these trends continue, significant increases in beef cattle, broiler, and processed fruit and vegetable production will be needed to meet both the population growth and the increased per capita consumption. The production of other agricultural products will increase at a rate close to or slightly less than that of the population growth. Livestock Production Total animal production in the United States has shown a continued increase because of demands for meat noted above.
A second area in the central corn belt feeds about 8 million head and a third area in Nebraska and eastern Colorado feeds about 6 million head annually. The fourth area is in southern California and Arizona which feeds about 3 million head per year. All but the last area have had large increases in fed cattle during the 1960-1970 period. The Texas-Oklahoma feedlots are expected to increase in size and number. In this area, feedlots with 10,000 head or more capacity enjoyed a cost advantage over smaller lots and accounted for about 55% of the fed cattle marketed in this region during 1966-1967.
The increased inorganic fertilizer use in the United States has accounted for over half of the increase in crop production per acre since 1940 (21). Fertilizer has been substituted for land, labor, and other production inputs to increase agricultural production. 4% over the period of 1948 to 1969 in the United States. The significant factors for the increases include availability of fertilizer, com petitive prices, interaction of other technology with fertilizer use, labor shortages, and the need to maintain economic viability.
Agricultural Waste Management: Problems, Processes and Approaches by Raymond C. Loehr