title: Effects of Organic and Waste-Derived Fertilizers on Yield, Nitrogen and Glucosinolate Contents, and Sensory Quality of Broccoli (Brassica oleracea L. var. italica).
abstract: Organic vegetable production attempts to pursue multiple goals concerning influence on environment, production resources, and human health. In areas with limited availability of animal manure, there is a need for considering various off-farm nutrient resources for such production. Different organic and waste-derived fertilizer materials were used for broccoli production at two latitudes (58° and 67°) in Norway during two years. The fertilizer materials were applied at two rates of total N (80 and 170 kg ha(-1)) and compared with mineral fertilizer (170 kg ha(-1)) and no fertilizer. Broccoli yield was strongly influenced by fertilizer materials (algae meal < unfertilized control < sheep manure < extruded shrimp shell < anaerobically digested food waste < mineral fertilizer). Yield, but not glucosinolate content, was linearly correlated with estimated potentially plant-available N. However, extruded shrimp shell and mineral NPK fertilizer gave higher glucosinolate contents than sheep manure and no fertilizer. Sensory attributes were less affected by fertilizer material and plant-available N.
authors.affiliation: Bioforsk, Norwegian Institute for Agricultural and Environmental Research , Postboks 115, NO-1431 Ås, Norway.|Department of Plant Sciences, Norwegian University of Life Sciences , P.O. Box 5003, NO-1432 Ås, Norway.
authors.forename: Ingunn
authors.initials: I
authors.lastname: Øvsthus
authors.affiliation: Department of Plant Sciences, Norwegian University of Life Sciences , P.O. Box 5003, NO-1432 Ås, Norway.
authors.forename: Tor Arvid
authors.initials: TA
authors.lastname: Breland
authors.affiliation: Nofima AS, P.O. Box 210, NO-1431 Ås, Norway.
authors.forename: Sidsel Fiskaa
authors.initials: SF
authors.lastname: Hagen
authors.affiliation: Human Nutrition Research Centre, School of Agriculture, Food and Rural Development, Newcastle University , NE1 7RU Newcastle upon Tyne, United Kingdom.
authors.forename: Kirsten
authors.initials: K
authors.lastname: Brandt
authors.affiliation: Department of Plant Sciences, Norwegian University of Life Sciences , P.O. Box 5003, NO-1432 Ås, Norway.
authors.forename: Anne-Berit
authors.initials: AB
authors.lastname: Wold
authors.affiliation: Nofima AS, P.O. Box 210, NO-1431 Ås, Norway.
authors.forename: Gunnar B
authors.initials: GB
authors.lastname: Bengtsson
authors.affiliation: Bioforsk, Norwegian Institute for Agricultural and Environmental Research , Postboks 115, NO-1431 Ås, Norway.
authors.forename: Randi
authors.initials: R
authors.lastname: Seljåsen
mesh_terms: D060105:Animal Shells; D000818:Animals; D001937:Brassica / Q000737:chemistry* / Q000187:drug effects / Q000254:growth & development*; D005308:Fertilizers; D005961:Glucosinolates / Q000032:analysis*; D006801:Humans; D008372:Manure; D008903:Minerals; D009584:Nitrogen / Q000032:analysis*; D009664:Norway; D058871:Organic Agriculture / Q000379:methods*; D033561:Penaeidae; D012677:Sensation; D012756:Sheep
chemical_list: D005308:Fertilizers; D005961:Glucosinolates; D008372:Manure; D008903:Minerals; D009584:Nitrogen
keywords: Brassica oleracea; broccoli; glucosinolates; nitrogen mineralization; organic farming; organic fertilizer; sensory attributes; sustainability; yield