Authors: Whaley, JM Sparkes, DL Foulkes, MJ Spink, JH Semere, T Scott, RK

Citation: Jm. Whaley et al., The physiological response of winter wheat to reductions in plant density, ANN AP BIOL, 137(2), 2000, pp. 165-177

Authors: Spink, JH Semere, T Sparkes, DL Whaley, JM Foulkes, MJ Clare, RW Scott, RK

Citation: Jh. Spink et al., Effect of sowing date on the optimum plant density of winter wheat, ANN AP BIOL, 137(2), 2000, pp. 179-188

Authors: Sylvester-Bradley, R Lord, E Sparkes, DL Scott, RK Wiltshire, JJJ Orson, J

Citation: R. Sylvester-bradley et al., An analysis of the potential of precision farming in Northern Europe, SOIL USE M, 15(1), 1999, pp. 1-8

Authors: Sparkes, DL Ramsden, SJ Jaggard, KW Scott, RK

Citation: Dl. Sparkes et al., The case for headland set-aside: consideration of whole-farm gross marginsand grain production on two farms with contrasting rotations, ANN AP BIOL, 133(2), 1998, pp. 245-256