Contém referências bibliográficas Methods of calculating root production and nitrogen uptake in an annual crop Shoot and root production and nitrogen uptake in barley, with and without nitrogen fertilization Below-ground plant production in a perennial grass ley (Festuca pratensis Huds.) assessed with different methods Above- and below-ground production and nitrogen uptake in Lucerne (Medicago sativa) Uptake and above- and below-ground allocation of soil mineral-N and fertilizer-15N in a perennial grass ley (Festuca pratensis Huds.) Root dynamics investigated with a mini-rhizotron technique
