Open Access Research Paper Views (250) Download (25) Nutrient cycling and nutrient-use efficiency in an agroecosystem of Trifolium alexandrinum L. Salama El-Darier, Mabroka Hemada J. Bio. Env. Sci.13( 3), 122-133, September 2018. Key: Nutrient accumulationOrganic constituentsPhytomass partitioningPrimary productivity Details