J. O. Shiyam
University of Calabar, Nigeria.
Title: EFFECT OF INTEGRATED NUTRIENT MANAGEMENT ON LEAF YIELD PRODUCTIVITY OF Telfaiaria occidentalis IN THE CROSS RIVER RAINFOREST AREA OF NIGERIA
Biography
Biography: J. O. Shiyam
Abstract
A field experiment was conducted at the Teaching and Research Farm, University of Calabar during the 2016 cropping season to evaluate the efficiency of some animal manures and urea-N for soil fertility improvement and productivity of Telfaiaria occidentalis. The treatments used were 60 kg Urea-N/ha, sole pig waste and poultry manure each at 10 t/ha, pig waste +poultry manure each at 5 t/ha, urea + pig manure + poultry manure at 50 % of the sole rates and the control. The treatments were replicated three times in a randomized complete block design (RCBD). The results obtained showed significant (p = 0.05) variation in vine length, leaf area index and cumulative fresh leaf yield among the treatments. At 10 weeks after emergence longest vines (120.8 cm), highest LAI (14.8) and highest cumulative fresh leaf yield (10280 kg/ha) were obtained in ½ (Urea-N +PM + PW) treatment, followed by Urea-N (9883kg/ha), ½ PM + ½ PW (7110 kg/ha), 10 t PM/10 t PW/ha (7023/6824 kg/ha), while the control treatment had lowest yield (622 kg/ha). This fresh yield trend indicates that combining mixed manures with inorganic nutrients reduces the quantity of manure required and is more beneficial and more effective than sole nutrients.