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The preparation of soil survey reports










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    Book (stand-alone)
    Soil survey interpretation and its use 1967
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    This soils bulletin brings together some of the methods which have been developed and tested in countries that have active programs of making and using soil surveys, and a summary of some of the principles of soil survey interpretation. It is mainly addressed for the soil scientist who is making and interpreting a soil survey, or who is re-interpreting a soil survey already completed. Methods are suggested, with examples, for comparative ratings of soils, capability grouping of soils for the com mon crops, estimating yields of crops on different kinds of soil under defined sets of other growth factors, groupings of soils for range and for woodland management, and use of soil maps and reports in engineering work that involves soils as foundations or as construction material. There are also brief discussions of soil maps for planning, use of soil maps in appraisal of land, and the preparation and use of general soil maps.
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    A practical manual of soil microbiology laboratory methods 1967
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    Soil microbiology is the science that deals with the millions of very small forms of life found in the soil. Agricultural crop production should insure that full use is made of the benefits to be gained from proper management of soil micro-organisms. The methods outlined in this soils bulletin represent various experimental approaches to the more important aspects of the subject matter of soil microbiology. The experimental approaches are simple, selected and designed to demonstrate techniques a nd principles but not advanced research methods.
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    Book (stand-alone)
    Management properties of ferralsols 1979
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    The FAO Soil Map of the World has in part filled the gap created by the absence of an internationally accepted classification system. Ferralsols have been selected as the first soil order for which a reference publication should be made; they occur in tropical regions, where communications and the transfer of knowledge has not kept pace with the rapid development and the needs of growing populations.

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