A hand-held data logger with integral GPS for producing weed maps by field walking

Computers and Electronics in Agriculture

Volumn 14, Issue 2-3 SPEC. ISS., 1996, Pages 235-247

  Stafford, J V ^a   Le Bars, J M ^b   Ambler, B ^a  

^a SILSOE RESEARCH INSTITUTE   (United Kingdom)

^b CEMAGREF   (France)

Author keywords

GPS; Patch spraying; Spatial variability; Weed

Indexed keywords

DATA LOGGER; FIELD WALKING; GPS; WEED MAP;

EID: 0029749127     PISSN: 01681699     EISSN: None     Source Type: Journal    
DOI: 10.1016/0168-1699(95)00050-x     Document Type: Article

References (11)

1. Brivot, R. and Marchant, J.A. (1995) Segmentation of plants and weeds using infra-red images. Acta Hortic. (in press).
2. Eastman, J.R. (1993) IDRISI Version 4.1. Graduate School of Geography, Clark University, Worcester, Mass.
3. Marshall, E.J.P. (1988) Field scale estimates of grass weed populations in arable land. Weed Res., 28: 191-198.
4. Miller, P.C.H. and Stafford, J.V. (1991) Herbicide application to targeted patches. In: Proceedings of Brighton Crop Protection Conference, November 1991. British Crop Protection Council, Farnham, pp. 1249-1256.
5. Ordnance Survey (1983) Transverse Mercator projection - constants, formulae and methods. Ordnance Survey of Great Britain information booklet, Southampton.
6. RTCM (1989) RTCM Standards for differential Navstar GPS service, Version 2.0. RTCM Paper 134-89/SC104-68, Radio Technical Commission for Maritime Services, Washington, D.C.
7. Schueller, J. (1992) A review and integrating analysis of spatially variable control of crop production. Fert. Res., 33: 1-34.
8. Stafford, J.V. and Ambler, B. (1994) In-field location using GPS for spatially variable field operations. Comput. Electron. Agric., 11(1): 23-36.
9. Stafford, J.V. and Miller, P.C.H. (1993) Spatially selective application of herbicide. Comput. Electron. Agric., 9(3): 217-229.
10. Thompson, J.F., Stafford, J.V. and Miller, P.C.H. (1991) Potential for automatic weed detection and selective herbicide application. Crop Prot., 10: 254-259.
11. Wilson, B.J. and Brain, P. (1990) Weed monitoring on a whole farm - patchiness and the stability of the distribution of Alopecurus Myosuroides over a ten year period. In: Integrated Weed Management in Cereals. Proceedings of the European Weed Research Society Symposium, Helsinki, pp. 45-52.