Arnold, C. (1991). METDATA User Guide. Harpenden, UK: AFRC Computing Division.
Aslyng, H. C. & Hansen, S. (1982). Water Balance and Crop Production Simulation. Copenhagen: Hydrotechnical Laboratory, the Royal Veterinary and Agricultural University.
Aston, A. R. (1979). Rainfall interception by eight small trees. Journal of Hydrology 42, 383–396.
Carr, M. K. V. (1983). Identifying the need for irrigation. Irrigation News 5, 21–29.
Carr, M. K. V., Wright, E. & Hamer, P. J. C. (1991). Irrigation of Field Vegetable and Arable Crops. Final Report to the Ministry of Agriculture, Fisheries and Food. Silsoe College (Cranfield Institute of Technology), Silsoe, Bedford.
Cowan, I. R. (1965). Transport of water in the soil-plantatmosphere system. Journal of Applied Ecology 2, 221–239.
Denmead, O. T. & Shaw, R. H. (1962). Availability of soil water to plants as affected by soil moisture content and meteorological conditions. Agronomy Journal 54, 385–390.
Doorenbos, J. & Kassam, A. H. (1979). Yield Response to Water. Irrigation and Drainage Paper No 33. Rome: FAO.
Dunham, R. J. & Brown, K. F. (1987). Water requirements of sugar beet. Irrigation News 12, 61–72.
Feddes, R. A. (1987). Modelling and simulation in hydrologic systems related to agricultural development: state of the art. In Simulation Models for Cropping Systems in Relation to Water Management (Ed. Feyen, J.), pp. 55–72. Luxembourg: EEC.
Feddes, R. A., de Graaf, M., Bouma, J. & van Loon, C. D. (1988). Simulation of water use and production of potatoes as affected by soil compaction. Potato Research 31, 225–239.
Hamer, P. J. C., Carr, M. K. V. & Wright, E. (1994 a). Crop production and water-use. II. The development and validation of a water-use model for sugarbeet. Journal of Agricultural Science, Cambridge 123, 15–24.
Hamer, P. J. C., Carr, M. K. V. & Wright, E. (1994 b). Crop production and water-use. III. The development and validation of a water-use model for potatoes. Journal of Agricultural Science, Cambridge 123.
Hanks, R. J. & Hill, R. W. (1980). Modelling Crop Responses to Irrigation. Oxford: Pergamon Press.
Hexem, R. W. & Heady, E. O. (1978). Water Production Functions and Irrigated Agriculture. Ames, USA: Iowa State University Press.
Mason, D. J. (1978). Input parameters for combination equations. MSc thesis, Silsoe College (Cranfield Institute of Technology), UK.
Ministry of Agriculture, Fisheries & Food (1982). Irrigation Reference Book. London: HMSO.
Monteith, J. L. (1965). Evaporation and environment. Symposium of the Society of Experimental Biology 19, 205–234.
Monteith, J. L. (1977). Climate and the efficiency of crop production in Britain. Philosophical Transactions of the Royal Society, London, Series B 281, 277–294.
Penman, H. L. & Long, I. F. (1960). Weather in wheat. An essay in micrometeorology. Quarterly Journal of the Royal Meteorological Society 86, 16–50.
Rutter, A. J. (1975). The hydrological cycle in vegetation. In Vegetation and the Atmosphere, Volume 1: Principles (Ed. Monteith, J. L.), pp. 111–154. London: Academic Press.
Shalhevet, J., Mantell, A., Bielorai, H. & Shimshi, D. (1981). Irrigation of Field and Orchard Crops under Semi-Arid Conditions. Bet Dagan, Israel: International Irrigation Information Centre.
Shuttleworth, W. J. & Wallace, J. S. (1985). Evaporation from sparse crops - an energy combination theory. Quarterly Journal of the Royal Meteorological Society 111, 839–855.
Smith, L. P. & Douglas, H. A. (1975). Theoretical considerations of the water loss by evaporation from bare soil and the effect of partial crop cover. ADAS Quarterly Review 16, 135–144.
Soil Survey and Land Research Centre (1989). The Land Information System (LandlS). Silsoe Campus (Cranfield Institute of Technology), Silsoe, Bedford.
Tanner, C. B. & Jury, W. A. (1976). Estimating evaporation and transpiration from a row crop during incomplete cover. Agronomy Journal 68, 239–243.
Thom, A. S. & Oliver, H. R. (1977). On Penman's equation for estimating regional evaporation. Quarterly Journal of the Royal Meteorological Society 103, 345–357.