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ABSTRACT
With the development and application of soil management research, crop production potentials have increased tremendously as compared to crop yields characteristic of the soil in its natural or virgin state. Thus, in a given soil we have become more interested in its response to management than in its native or present productivity level. The Cecil soils of the Southeast and alluvial desert soils of the West are good examples of soils which are relatively unproductive in their virgin state, but produce high crop yields when properly managed.
It is the purpose of this paper to discuss basic information needed to predict how a soil will react or respond to the application of alternative soil and water management practices. The basic soils information which the soil survey provides must be properly interpreted by the farm planner or advisor if he is to develop a soil and water management system suited to any given farm.
1 Contribution from the Agricultural Research Service, U.S.D.A. Presented before Divs. V. and VI, Soil Science Society of America, Cincinnati, Ohio, Nov. 13, 1956.
2 Formerly supervisory Soil Scientist, Western Soil and Water Management Branch, S.W.C.R.D., A.R.S., U.S.D.A., Billings, Montana. Now Extension Soils Specialist, University of California, Davis.
Received for publication December 17, 1956. Accepted for publication November 12, 1957.
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