{"title":"Response of sunflower (Helianthus annuus L.) to nitrogen and phosphorus application in the forest-savanna transition zone of south west, Nigeria","authors":"V. Olowe, O. Adebimpe, T. E. Obadiahi","doi":"10.4314/NJHS.V10I1.3405","DOIUrl":null,"url":null,"abstract":"Field experiments were conducted during the late rainy-season cropping of 1999 and 2000 at the Teaching and Research Farm of University of Agriculture, Abeokuta (7o15' N, 3o25'E) in the forest-savanna transition zone of south west Nigeria to investigate the response of sunflower (vr. Funtua) to applied nitrogen (0, 30, 60 and 90 kg N ha -1 ) and phosphorus (0, 30 and 60 kg P ha -1 ) fertilizers. N significantly (P -1 compared to the control. N also significantly (P -1 significantly increased grain yield by 30, 40 and 50 %, compared with the control. Nitrogen x Phosphorus interaction significantly (P -1 ), achene weight (27.99 g) and second highest head weight (63.76 g). Consequently, it was concluded that since application of N60P30 resulted in optimum performance of sunflower, these rates are therefore, recommended for sunflower production in the forest-savanna transition zone of south-west Nigeria. Keywords : nitrogen, phosphorus, sunflower, transition zone, south west Nigeria Nigerian Journal of Horticultural Science Vol. 10 2005: pp. 23-29","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"10 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"14","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nigerian Journal of Horticultural Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4314/NJHS.V10I1.3405","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 14
Abstract
Field experiments were conducted during the late rainy-season cropping of 1999 and 2000 at the Teaching and Research Farm of University of Agriculture, Abeokuta (7o15' N, 3o25'E) in the forest-savanna transition zone of south west Nigeria to investigate the response of sunflower (vr. Funtua) to applied nitrogen (0, 30, 60 and 90 kg N ha -1 ) and phosphorus (0, 30 and 60 kg P ha -1 ) fertilizers. N significantly (P -1 compared to the control. N also significantly (P -1 significantly increased grain yield by 30, 40 and 50 %, compared with the control. Nitrogen x Phosphorus interaction significantly (P -1 ), achene weight (27.99 g) and second highest head weight (63.76 g). Consequently, it was concluded that since application of N60P30 resulted in optimum performance of sunflower, these rates are therefore, recommended for sunflower production in the forest-savanna transition zone of south-west Nigeria. Keywords : nitrogen, phosphorus, sunflower, transition zone, south west Nigeria Nigerian Journal of Horticultural Science Vol. 10 2005: pp. 23-29