Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEffects of leaf position and nitrogen supply on the expansion of leaves of field grown sunflower (Helianthus annuus L.)AuthorsHall, A. J.; Trapani, N.SubjectsNITROGENPublicationPlant & Soil, 1996, Vol 184, Issue 2, p331ISSN0032-079XPublication typeArticle