1. Alexander, S., Black, A., Boland, A., Burke, J., Carton, O.T., Coulter, B.S., Culleton, N., Dillon, P., Hackett, R., Humphreys, J., 2008. Major and micro nutrient advice for productive agricultural crops. 50th anniversary edition ed., Teagasc, Johnstown Castle, Co Wexford.
2. Relay-intercropped forage legumes help to control weeds in organic grain production;Amossé;Eur. J. Agron.,2013
3. Relay intercropping of legume cover crops in organic winter wheat: effects on performance and resource availability;Amossé;Field Crops Res.,2013
4. Clover cover crops under-sown in winter wheat increase yield of subsequent spring barley—effect of N dose and companion grass;Bergkvist;Field Crops Res.,2011
5. Spring and autumn establishment of Caucasian and white clovers with different sowing rates of perennial ryegrass;Black;Grass Forage Sci.,2006