EFFECTS OF PHOSPHORUS LEVEL AND SOIL TYPE ON THE GROWTH OF CARIBBEAN STYLO (stylosanthes hamata cv. Verano)

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dc.contributor.authorMUSA, ABUBAKAR
dc.date.accessioned2014-02-13T09:44:39Z
dc.date.available2014-02-13T09:44:39Z
dc.date.issued1990-06
dc.descriptionA THESIS SUBMITTED TO THE POSTGRADUATE SCHOOL, AHMADU BELLO UNIVERSITY, IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE IN ANIMAL SCIENCE. DEPARTMENT OF ANIMAL SCIENCE FACULTY OF AGRICULTURE AHMADU BELLO UNIVERSITY, ZARIAen_US
dc.description.abstractA pot experiment was conducted in a glasshouse at Samaru between June and September, 1989 to i n v e s t i g a t e the e f f e c t s of f i v e phosphorus l e v e l s and three s o i l types c o l l e c t e d from Samaru (Northern Guinea Savanna), Jos (Montane) and Sokoto (Sudan Savanna) on the growth of Caribbean s t y l o (Stylosanthes hamata cv. Verano). Most of the plant morphological a t t r i b u t e s , components of plant dry matter y i e l d and plant nutrient composition and uptake were s i g n i f i c a n t l y affected by phosphorus. In s o i l s collected from Samaru and J o s , phosphorus reduced days to 50% flowering and increased branch and nodule numbers while in the absence of added phosphorus Verano s t y l o planted into s o i l s collected from Sokoto flowered e a r l i e s t and produced the highest number of seeds and nodules. Phosphorus a p p l i c a t i o n increased dry matter y i e l d s of t o t a l plant and plant t o p . Yield of the root component was lowest and in fact declined further with phosphorus a p p l i c a t i o n. Phosphorus thus plays a g r e a t e r r o l e in increasing plant top dry matter y i e l d. The study suggested t h a t s o i l s collected from Jos suit seed production and would require up to 240 kg PpC/ha for t h i s purpose while s o i l s sampled from Samaru and Sokoto required 180 and 60 - 120 kg. P2O5/ha, r e s p e c t i v e l y for forage production. Nitrogen (N),phosphorus (P)tpotassium (K) and magnesium (Mg) concentrations peaked at 180 kg P2O5/ha, whereas uptake of these n u t r i e n t s maximised between 120 and 180 kg P2O5/ha. The N, P, K, Ca and Mg concentrations obtained in t h i s study were above the l e v e l s regarded as minimum needed for ruminant live weight maintenance- „ The need for f i e l d t r i a l s to support the findings in the present study was i n d i c a t e d.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/1353
dc.language.isoenen_US
dc.subjectEFFECTS,en_US
dc.subjectPHOSPHORUS,en_US
dc.subjectLEVEL,en_US
dc.subjectSOILS,en_US
dc.subjectGROWTH,en_US
dc.subjectCARIBBEAN STYLO,en_US
dc.subjectstylosanthes hamata cv.,en_US
dc.subjectVeranoen_US
dc.titleEFFECTS OF PHOSPHORUS LEVEL AND SOIL TYPE ON THE GROWTH OF CARIBBEAN STYLO (stylosanthes hamata cv. Verano)en_US
dc.typeThesisen_US
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