Sampling strategies for mapping 'Within-field' variability in the dry matter yield and mineral nutrient status of forage grass crops in cool temperate climes

Precision Agriculture

Volumn 4, Issue 1, 2003, Pages 69-86

  Jordan, Crawford ^a   Shi, Z ^b   Bailey, John S ^c   Higgins, Alex J ^c  

^a QUEEN'S UNIVERSITY BELFAST   (United Kingdom)

^b ZHEJIANG UNIVERSITY   (China)

^c Agric and Environ Science Division   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

CROP YIELD; DRY MATTER; FORAGE; MAPPING;

POACEAE;

EID: 0037368724     PISSN: 13852256     EISSN: None     Source Type: Journal    
DOI: 10.1023/A:1021815122216     Document Type: Article

References (22)

1. Agterberg, F. P. 1984. Trend surface analysis, In: Spatial Statistics and Models, edited by G. L. Gaile and C. J. Willmott (Reidel, Dordrecht, the Netherlands), p. 147-171.
2. Anslow, R. C. and Green, J. O. 1967. The seasonal growth of pasture grasses. Journal of Agricultural Science (Cambridge) 68, 109-122.
3. Bailey, J. S., Beattie, J. A. M. and Kilpatrick D. J. 1997a. The diagnosis and recommendation integrated system (DRIS) for diagnosing the nutrient status of grassland: I model establishment. Plant and Soil 197, 127-135.
4. Bailey, J. S., Cushnahan, A. and Beattie, J. A. M. 1997b. The diagnosis and recommendation integrated system (DRIS) for diagnosing the nutrient status of grassland: II model calibration and validation. Plant and Soil 197, 137-147.
5. Bailey, J. S., Higgins, A. H. and Jordan, C. 2000. Empirical models for predicting the dry matter yield of grass silage swards using plant tissue analyses. Precision Agriculture 2, 131-145.
6. Cruickshank, J. G. 1997. Soil and the Environment: Northern Ireland (The Queen's University of Belfast, Belfast, UK), p. 213.
7. Environmental Systems Research Institute Inc. 1999. ArcView GIS, V3.2 (Redlands, California, USA).
8. + - Geostatistics for the Environmental Sciences. V3.I for Windows (Plainwell, Michigan, USA).
9. Gotway, C. A., Ferguson, R. B., Hergert, G. W. and Peterson, T. A. 1996. Comparison of kriging and inverse-distance methods for mapping soil parameters. Soil Science Society of America Journal 60, 1237-1247.
10. 3-N, P, and K determinations for site-specific farming. Transactions of the American Society of Agricultural Engineers 40, 337-343.
11. Hald, A. 1960. Statistical Theory with Engineering Applications (John Wiley & Sons, New York).
12. Keady, T. W. J. and O'Kiely, P. 1995. The effects of nitrogen fertilization of grassland on silage fermentation, in-silo losses and effluent production. Irish Journal of Agricultural and Food Research 34, 80-81.
13. Ministry of Agriculture, Fisheries and Food, 1986. The Analysis of Agricultural Materials, MAFF/ADAS Reference Book 427 (HMSO, London).
14. McBratney, A. B. and Webster, R. 1986. Choosing functions for semi-variograms and fitting them to sampling estimates. Journal of Soil Science 37, 617-639.
15. Oliver, M. A. and Frogbrook, Z. L. 1998. Sampling to estimate soil nutrients for precision agriculture. Proceedings of the International Fertilizer Society, No 417, p. 36.
16. Oliver, M. A. and Webster, R. 1991. How geostatistics can help you. Soil Use and Management 7, 206-217.
17. Sachs, L. 1982. Applied Statistics (Springer-Verlag, New York).
18. Shi, Z., Wang, K., Bailey, J. S., Jordan C. and Higgins, A. H. 2000. Sampling strategies for mapping soil phosphorus and soil potassium distributions in cool temperate grassland. Precision Agriculture 2, 347-357.
19. SPSS Inc. 1997. SPSS for Windows, V8.0.0, (Chicago, Illinois, USA).
20. Snedecor, G. W. and Cochran, W. G. 1967. Statistical Methods, sixth Edition (Iowa State University Press, Ames, Iowa).
21. Tukey, J. W. 1977. Exploratory Data Analysis (Addison Wesley, Reading, Massachusetts).
22. Yfantis, E. A., Flatman, G. T. and Behar, J. V. 1987. Efficiency of kriging estimation for square, triangular, and hexagonal grids. Mathematical Geology 19, 183-205.