| effect of n and npk fertilizers on early field performance of narrow-leaved ash, fraxinus angustifolia. | the effect of fertilization in the first growing season on early survival and growth of narrow-leaved ash (nla) (fraxinus angustifolia ssp. oxycarpa) was evaluated throughout the first 3 years of growth in adapazari, turkey. a randomized complete block design with four replications was established to investigate fertilization effects. granular n urea [46%, (nh2)2co, nh2-n] and npk (15/15/15%; nh3-n, p2o5, k2o) fertilizers were applied in mid-may of the first growing season. fertilization treatme ... | 2010 | 20648820 |