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<br />REFERENCES <br />Black, C.A., 1965. Methods of Soil Analysis. American Society of <br />Agronomy Monography No. 9, parts 1 and 2. Madison, Wisconsin. <br />1572 pages. <br />U.S. Salinity Laboratory Staff (USDA), Diagnosis and Improvement of <br />Saline and Alkali Soils, USDA Agriculture Handbook No. 60, 1969. <br />United States Department of Agriculture (USDA), Soil Conservation <br />Service, National Soils Handbook, compendium of SCS in-house <br />memos, various dates. <br />United States Department of Agriculture (USDA), Soil Conservation <br />Service. Soil Survey Staff, 1975. Soil Taxonomy - a basic system <br />of soil classification for making and interpreting soil surveys. <br />USDA Agriculture Handbook No. 436. <br />United States Department of Agriculture (USDA), Soll Conservation <br />Service, Soil Survey Staff, 1951 Soil Survey Manual, USDA <br />Agriculture Handbook No. 18. <br />• United States Department of Agriculture (USDA), 1981, Soil Survey <br />Manual, chapter 4, Examination and Description of Soils in the <br />field, Manuscript (430-V-SSM, May 1981). <br />r 1 <br />L <br />26 <br />