Use of Lorenz curves and Gini coefficients to assess yield inequality within paddocks

Field Crops Research

Volumn 90, Issue 2-3, 2004, Pages 303-310

  Sadras, Victor ^a   Bongiovanni, Rodolfo ^b  

^a CSIRO   (Australia)

^b INSTITUTO NACIONAL DE TECNOLOGÍA AGROPECUARIA INTA   (Argentina)

Author keywords

Bimodality; Hierarchy; Inequality; Maize; Nitrogen; Population ecology

Indexed keywords

AGRONOMY; ARID REGIONS; COMPUTER SOFTWARE; DATA ACQUISITION; ECOLOGY; GEOGRAPHIC INFORMATION SYSTEMS; STATISTICAL METHODS;

GINI COEFFICIENTS; LORENTZ CURVES; SPATIAL STRUCTURES;

CROPS;

AGRICULTURAL MANAGEMENT; CROP YIELD; MAIZE; SPATIAL DISTRIBUTION;

AGRONOMY; COMPUTER PROGRAMS; CORN; DATA PROCESSING; ECOLOGY; GIS; STATISTICAL ANALYSIS;

ARGENTINA; SOUTH AMERICA;

ZEA MAYS;

EID: 5644254728     PISSN: 03784290     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.fcr.2004.04.003     Document Type: Article

References (30)

1. Arslan S., Colvin T. Grain yield mapping: yield sensing, yield reconstruction, and errors. Precis. Agric. 3:2002;135-154
2. Beaugrand G., Edwards M. Differences in performance among four indices used to evaluate diversity in planktonic ecosystems. Oceanol. Acta. 24:2001;467-477
3. Bendel R.B., Higgings S.S., Teberg J.E., Pyke D.A. Comparison of skewness coefficient, coefficient of variation and Gini coefficient as inequality measures within populations. Oecologia. 78:1989;394-400
4. Bongiovanni, R., 2002. A spatial econometric approach to the economics of site-specific nitrogen management in corn production. Ph.D. Thesis. Purdue University, 306 pp.
5. Bongiovanni, R., Lowenberg-DeBoer, J., 2001. Precision agriculture: economics of nitrogen management in corn using site-specific crop response estimates from a spatial regression model. In: Proceedings of the American Agricultural Economists Association Annual Meeting, Chicago.
6. Charles-Edwards, D.A., 1982. Physiological Determinants of Crop Growth. Academic Press, North Ryde, 161 pp.
7. Crawley, M., 1983. Herbivory. The dynamics of animal-plant interactions. Studies in Ecology, vol. 10. Blackwell Scientific Publications, London, 437 pp.
8. Figini P. On the properties of field's index of inequality. J. Income Distrib. 8:1998;131-141
9. Harch B.D., Correll R.L., Meech W., Kirkby C.A., Pankhurst C.E. Using the Gini coefficient with BIOLOG substrate utilisation data to provide an alternative quantitative measure for comparing bacterial soil communities. J. Microbiol. Meth. 30:1997;91-101
10. Harper, J.L., 1977. The Population Biology of Plants. Academic Press, London.
11. Hide G.A., Welham S.J., Read P.J., Ainsley A.E. Influence of planting seed tubers with gangrene (Phoma foveata) and of neighbouring healthy, diseased and missing plants on the yield and size of potatoes. J. Agric. Sci. 125:1995;51-60
12. Hide G.A., Welham S.J., Read P.J., Ainsley A.E. Effects of planting mixtures of different sizes of potato seed tubers on the yield and size of tubers. J. Agric. Sci. 128:1997;173-180
13. Hirst J., Hide G.A., Stedman O.J., Griffith R.L. Yield compensation in gappy potato crops and methods to measure effects of fungi pathogenic on seed tubers. Ann. Appl. Biol. 73:1973;143-150
14. Lowenberg-DeBoer, J., Swinton, S.M., 1997. Economics of site-specific management in agronomic crops. In: Pierce, F.J., Sadler, E.J. (Eds.), The State of Site-specific Management for Agriculture. ASA, CSSA, SSSA, Madison, pp. 369-396.
15. Mohler C.L., Marks P.J., Sprugen D.G. Stand structure and allometry of trees during self-thinning of pure stands. J. Ecol. 66:1978;599-614
16. Monteith J.L. Climate and efficiency of crop production in Britain. Phil. Trans. Roy. Soc. London B. 281:1977;277-294
17. Moore, D.S., McCabe, G.P., 1998. Introduction to the Practice of Statistics. Freeman, 826 pp.
18. Oliver, M.A., 1999. Exploring soil spatial variation geostatistically. In: Stafford, J.V. (Ed.), Precision Agriculture'99. Sheffield Academic Press Ltd., Odense, Denmark, pp. 3-17.
19. Pan X.-Y., Wang G.-X., Yang H.-M., Wei X.-P. Effect of water deficits on within-plot variability in growth and grain yield of spring wheat in northwest China. Field Crops Res. 80:2003;195-205
20. Passioura J. Grain yield, harvest index and water use of wheat. J. Aust. Inst. Agric. Sci. 43:1977;117-120
21. Pierce, F.J., Anderson, N.W., Colvin, T.S., Schueller, J.K., Humburg, D.S., McLaughlin, N.B., 1997. Yield mapping. In: Pierce, F.J., Sadler, E.J. (Eds.), The State of Site-specific Management for Agriculture. ASA, Madison, pp. 211-243.
22. Pringle M.J., McBratney A.B., Whelan B.M., Taylor J.A. A preliminary approach to assessing the opportunity for site specific crop management in a field, using yield monitor data. Agric. Syst. 76:2003;273-292
23. Rousseau R., Van Hecke P., Nijssen D., Bogaert J. The relationship between diversity profiles, evenness and species richness based on partial ordering. Environ. Ecol. Stat. 6:1999;211-223
24. Sadras V.O. Population-level compensation after loss of vegetative buds: interactions among damaged and undamaged cotton neighbours. Oecologia. 106:1996;432-439
25. Sharma S., Rangger A., von Lützow M., Insam H. Functional diversity of soil bacterial communities increases after maize litter amendment. Eur. J. Soil Biol. 34:1998;53-60
26. van Hecke P., Moermans R., Mau F., Guittet J. Border effects and size inequality in experimental even-aged stands of poplar clones (Populus). Ann. Sci. For. 52:1995;193-200
27. Vega C.R.C., Sadras V.O. Size-dependent growth and the development of inequality in maize, sunflower and soybean. Ann. Bot. 91:2003;1-11
28. Weiner J., Solbrig O.T. The meaning and measurement of size hierarchies in plant populations. Oecologia. 61:1984;334-336
29. Whelan B.M., McBratney A.B. An approach to deconvoluting grain-flow within a conventional combine harvester using a parametric transfer function. Precis. Agric. 2:2000;389-398
30. Yoda K., Kira T., Ogawa H., Hozumi K. Self-thinning in overcrowded pure stands under cultivated and natural conditions. J. Biol. Osaka City Univ. 14:1963;107-129