Field calibration of a neutron moisture meter in vertisols

Soil Science Society of America Journal

Volumn 63, Issue 1, 1999, Pages 11-18

  Corbeels, M ^a   Hartmann, R ^b   Hofman, G ^b   Van Cleemput, O ^b  

^a MEKELLE UNIVERSITY   (Ethiopia)

^b GHENT UNIVERSITY   (Belgium)

Author keywords

[No Author keywords available]

Indexed keywords

CALIBRATION; MOISTURE METERS; ONE DIMENSIONAL; SAMPLING; WATER;

FIELD CALIBRATION; NEUTRON MOISTURE METER; SOIL PHYSICS; VERTISOLS;

SOILS;

EFFICIENCY MEASUREMENT; MEASUREMENT METHOD; VERTISOL; WATER USE;

EID: 0032947862     PISSN: 03615995     EISSN: None     Source Type: Journal    
DOI: 10.2136/sssaj1999.03615995006300010003x     Document Type: Article

References (23)

1. Berndt, R.D., and K.J. Coughlan. 1977. The nature of changes in bulk density with water content in a cracking clay. Aust. J. Soil Res. 15:27-37.
2. Blake, G.R., and K.H. Hartge. 1986a. Bulk density. p. 363-375. In A. Klute (ed.) Methods of Soil Analysis. Part 1. Physical and Mineralogical Methods. 2nd ed. Agron. Monogr. 9. ASA and SSSA, Madison, WI.
3. Blake, G.R., and K.H. Hartge. 1986b. Particle density. p. 377-382. In A. Klute (ed.) Methods of Soil Analysis. Part 1. Physical and Mineralogical Methods. 2nd ed. Agron. Monogr. 9. ASA and SSSA, Madison, WI.
4. Bronswijk, J.J.B. 1990. Shrinkage geometry of a heavy clay soil at various stresses. Soil Sci. Soc. Am. J. 54:1500-1502.
5. Bronswijk, J.J.B. 1991. Relation between vertical soil movements and water-content changes in cracking clays. Soil Sci. Soc. Am. J. 55:1220-1226.
6. Bronswijk, J.J.B., and J.J. Evers-Vermeer. 1990. Shrinkage of Dutch clay soil aggregates. Neth. J. Agric. Sci. 38:175-194.
7. Chan, K.Y. 1981. Representative sampling for bulk density in a Vertisol. Soil Sci. Soc. Am. J. 45:668-669.
8. Chanasyk, D.S., and M.A. Naeth. 1996. Field measurements of soil moisture using neutron probes. Can. J. Soil Sci. 76:317-323.
9. Fox, W.E. 1964. A study of bulk density and water in a swelling soil. Soil Sci. 98:307-316.
10. Gardner, E.A., K.J. Coughlan, and G.D. Smith. 1990. Computation and use of bulk density in swelling soils. Soil Tech. 3:343-349.
11. Greacen, E.L., and C.T. Hignett. 1979. Sources of bias in the field calibration of a neutron meter. Aust. J. Soil Res. 14:159-169.
12. Grimaldi, C., M. Grimaldi, and M. Vauclin. 1994. The effect of chemical composition of a ferrallitic soil on neutron probe calibration. Soil Tech. 7:233-247.
13. Holland, D.A. 1969. The construction of calibration curves for determining water content from radiation counts. J. Soil Sci. 20: 132-140.
14. Holmes, J.W. 1966. Influence of bulk density of the soil on neutron moisture meter calibration. Soil Sci. 102:355-360.
15. Jayawardane, N.S., N.S. Meyer, and H.D. Barrs. 1983. Moisture measurement in a swelling clay soil using neutron moisture meters. Ausl. J. Soil Res. 22:109-117.
16. Jensen, J.R. 1993. Stratification and neutron probe measurements in the topsoil of a ridged savanna soil. Soil Sci. 156:1-9.
17. Kamara, C.S., and I. Haque. 1988. Physical properties of Vertisols and their implications for management: a review. Soils and Plant Nutrition Section, ILCA, Addis Ababa, Ethiopia.
18. Lal, R. 1974. The effect of soil texture and density on the neutron and density probe calibration for some tropical soils. Soil Sci. 117:183-190.
19. Mathsoft. 1995. Mathcad Plus version 6.0 software, professional edition. Surrey, UK.
20. McGarry, D., and K.W.J. Malafant. 1987. The analysis of volume change in unconfined units of soil. Soil Sci. Soc. Am. J. 51:290-297.
21. McKenzie, D.C., K.W. Hucker, L.J. Morthorpe, and P.J. Baker. 1990. Field calibration of a neutron-gamma probe in three agriculturally important soils of the Lower Macquarie Valley. Aust. J. Exp. Agric. 30:115-122.
22. Snedecor, G.W., and W.G. Cochran. 1971. Statistical Methods. 6th ed. Iowa State University Press, Ames, Iowa.
23. Yule, D.F., and J.T. Ritchie. 1980. Soil shrinkage relationships of Texas Vertisols: I. Small cores. Soil Sci. Soc. Am. J. 44:1285-1291.