Transfer of legume nitrogen to associated grassA. Haystead; Carol Marriott · 1979

The Effect of Defoliation on the Nitrogen Economy of White Clover: Regrowth and the Remobilization of Plant Organic NitrogenMARRIOTT, CAROL A.; HAYSTEAD, A. · Annals of Botany · 1990

Effects of rates and times of application of starter dressings of nitrogen fertilizer to surface sown perennial ryegrass-white clover on hill peatA. HAYSTEAD; CAROL MARRIOTT · 1979