{"title":"Effect of nitrogen fertiliser on the growth and calyx yield of two cultivars of roselle","authors":"GM Bala, J. Fagbayide","doi":"10.4314/NJHS.V13I1.46578","DOIUrl":null,"url":null,"abstract":"Field experiments were carried out during the 2000 and 2001 rainy seasons on the field of National Horticultural Research Institute at Bagauda (latitude 11o 33’ N and longitude 8o 23’E of the equator). The experiment was aimed at evaluating the response of roselle cultivars to different levels of N in combination with 50 kg P/ha and establishing an optimum N fertilizer requirement by roselle. Five rates of nitrogen (0, 30, 60, 90 and 120 kg N ha-1) were combined with deep red and pure white cultivars of roselle in a randomized complete block design arrangement with three replications. Application of N significantly (p o roselle. Application of 50 kg P/ha as basal dressing significantly (p 0.05) were recorded in the seed yields of roselle cultivars in 2001 season and 60 kg N/ha produced optimum levels of 690.0 kg/ha for deep red and 550.0 kg/ha for pure white cultivars seed yields in Northern Guinea savanna.","PeriodicalId":185766,"journal":{"name":"Nigerian Journal of Horticultural Science","volume":"70 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nigerian Journal of Horticultural Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4314/NJHS.V13I1.46578","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Field experiments were carried out during the 2000 and 2001 rainy seasons on the field of National Horticultural Research Institute at Bagauda (latitude 11o 33’ N and longitude 8o 23’E of the equator). The experiment was aimed at evaluating the response of roselle cultivars to different levels of N in combination with 50 kg P/ha and establishing an optimum N fertilizer requirement by roselle. Five rates of nitrogen (0, 30, 60, 90 and 120 kg N ha-1) were combined with deep red and pure white cultivars of roselle in a randomized complete block design arrangement with three replications. Application of N significantly (p o roselle. Application of 50 kg P/ha as basal dressing significantly (p 0.05) were recorded in the seed yields of roselle cultivars in 2001 season and 60 kg N/ha produced optimum levels of 690.0 kg/ha for deep red and 550.0 kg/ha for pure white cultivars seed yields in Northern Guinea savanna.