EFFECTS OF LIME, NITROGEN AND PHOSPHORUS ON GROWTH, YIELD AND YIELD COMPONENTS OF COWPEA (Vigna unguiculata (L.) Walp).

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dc.contributor.authorKA'ANKUK'A, CORNELIUS NENKOP
dc.date.accessioned2014-05-14T10:58:08Z
dc.date.available2014-05-14T10:58:08Z
dc.date.issued1999-10
dc.descriptionA thesis submitted to the Postgraduate School, Ahmadu Bello University, Zaria in partial fulfillment of the requirements of the Degree of Master of Science (M.Sc) in Agronomy. DEPARTMENT OF AGRONOMY FACULTY OF AGRICULTURE/INSTITUTE FOR AGRICULTURAL RESEARCH, AHMADU BELLO UNIVERSITY, ZARIA NIGERIA. OCTOBER, 1999en_US
dc.description.abstractField experiments were conducted at Samaru during the 1995 and 1996 wet sesons to study the effects of lime, nitrogen and phosphorus on growth, yield and yield components of cowpea (Vigna unguiculata (L.) Walp). The experiment consisted of 27 treatments, replicated three times and laid out in a split-plot design. The effect of lime on growth parameters was significant during growth. At 12 WAS, number of primary branches per plant, leaf area index, number of leaves per plant, leaf dry weight, stem dry weight and plant height responded to lime significantly upto the highest rate of l000kg/ha. Plant height, stem dry weight, root dry weight, leaf dry weight, number of leaves per plant, number of primary branches per plant, leaf area index and total dry matter per plant at harvest were all significantly increased with the application of nitrogen and phosphorus. Leaf area index, number of primary branches per plant, leaf dry weight per plant at 12 WAS and total dry matter per plant at harvest did not respond to nitrogen above the N-rate of 20kg/ha and the phosphorus of 15kg/ha. Lime and nitrogen did not significantly increase grain yield , but the interaction between nitrogen and phosphorus significantly increased grain yield. Grain yield, number of pods per plant and days to 50% flowering were significantly increased by phosphorus application to cowpea upto the highest P-rate of 30kg/ha while Prate of 15kg/ha was enough for the number of seeds per poden_US
dc.identifier.urihttp://hdl.handle.net/123456789/4741
dc.language.isoenen_US
dc.subjectEFFECTS,en_US
dc.subjectLIME,en_US
dc.subjectNITROGEN,en_US
dc.subjectPHOSPHORUS,en_US
dc.subjectGROWTH,en_US
dc.subjectYIELD,en_US
dc.subjectYIELD,en_US
dc.subjectCOMPONENTS,en_US
dc.subjectCOWPEA,en_US
dc.subject(Vigna unguiculata,en_US
dc.subject(L.) Walp).en_US
dc.titleEFFECTS OF LIME, NITROGEN AND PHOSPHORUS ON GROWTH, YIELD AND YIELD COMPONENTS OF COWPEA (Vigna unguiculata (L.) Walp).en_US
dc.typeThesisen_US
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