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Degree-days measure the amount of heat accumulated over time. Researchers have used years of this data to develop models that help farmers and gardeners predict harvest dates and other important events in select crops and weeds. Learn how to use an online tool known as Croptime to put these models to work for you
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A. Aarkrog, E. Amaral, P. Benes, G. Blaylock, L L. Cadwell, A. Cigna, P J. Coughtrey, L R. Dela Paz, M. Dreicer, M J. Frissel, F O. Hoffman, T. Homma, J. Horyna, B J (Brenda) Howard, T. Iijima, B. Kanyar, H. Koehler, G. Kistner, G. Linsley, Y C. Ng, H. Noordijk, Ortins, A. Ortins De Bettencourt, G. Prohl, S C. Sheppard, J. Van den Hoek, B T. Wilkins, A R. Williams, G. Voigt· 1994
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W. Steffens, M. Bilo, H. Maubert, Ph Drouet, H. Noordijk, K E van Bergeljk, M J. Frissel, J. Lembrechts, A D (Dave) Horrill, F R (Francis) Livens, V H (Val) Kennedy, B J (Brenda) Howard, N A (Nick) Beresford, C M. Vandecasteele, M van Hees, E. Fagniart, J. Vankerkom, C. Hurtgen, J. Colard, J-P. Culot, R W. Mayes, C S. Lamb, B T. Wilkins, E J. Bradley, M. Belli, U. Sansone, J. Hilton, C A. Mills, M vaz Carreiro, A de Bettencourt, M J. Madruga, D. Woodhead, K. Leonard, D. Swift, Commission of the European Communities· 1990
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