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Soil-sampling errors and advisory analyses

  • R. G. Hemingway (a1)

Extract

1. Twenty-four sampling units from 50 fields of differing soil type and past manurial history have been examined separately for pH and 1% citric soluble phosphorus and potassium to determine the errors which can occur in obtaining a representative sample for analysis.

2. Soils which had received lime and fertilizers within 3 years of the sampling date showed appreciably greater sampling errors than those which had not.

3. The sampling errors were greater than the analytical errors and were such that the common practice of classifying soils into six fertility groups was not justified. Three major groups are more reasonable and practical for routine advisory purposes.

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References

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Advisory Chemists Conference (1951). National Agricultural Advisory Service. Report on a Soil Sampling Investigation.
Association of Official Agricultural Chemists (1945). Official and Tentative Methods of Analysis, 6th ed. p. 1.
Breh, F. & Gaebler, O. H. (1930). J. Biol. Chem. 67, 81.
Cline, M. G. (1945). Soil Sci. 58, 275.
Davies, W. M. (1950). Farming, 4, 265.
Frear, W. & Erb, E. S. (1920). J. Ass. Off. Agric. Chem. 4, 98.
Hall, Sir A. D. (revised Robinson, G. W.) (1945). The Soil, 5th ed. pp. 290300. London: Murray.
Kerr, H. W. & Stieglitz, C. R. von (1938). Tech. Oommun. Bur. Sug. Exp. Stas. Qd, 10, 205.
Knowles, F. & Watkin, J. E. (1947). A Practical Course in Agricultural Chemistry, 2. London: Macmillan.
Leather, J. W. (1902). J. Chem. Soc. 81, 883.
Lewis, A. H. & Marmoy, F. B. (1933). J. Soc. Chem. Ind., Land., 52, 177.
Lunt, H. A., Swanson, C. L. W. & Jacobson, H. G. M. (1950). Bull. Conn. Agric. Exp. Sta. no. 541.
National Agricultural Advisory Service (1948). Soil Report Form. H.M.S.O.
Piper, C. S. (1947). Soil and Plant Analysis. Waite Agric. Res. Inst. Monograph, 1.
Pizer, N. H. (1945). Agriculture, 52, 271.
Reid, J. F. & Rigney, J. A. (1945). Proc. Soil Sci. Soc. Amer. 10, 257.
Reid, J. F. & Rigney, J. A. (1947). J. Amer. Chem. Soc. 39, 26.
Riehm, H. (1943). Bodenk. PflEhrnähr. 29, 275.
Robinson, G. W. & Lloyd, E. W. (1915). J. Agric. Sci. 7, 144.
Truog, E. & Meyer, A. H. (1929). Industr. Engng Chem. (Anal, ed.), 1, 136.
Wolf, B. (1943). Industr. Engng Chem. (Anal, ed.), 15, 248.

Soil-sampling errors and advisory analyses

  • R. G. Hemingway (a1)

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