Anyigba Soils (Lat 7 0 29' and Long 7 0 11'E) in Kogi State is deficient in Nitrogen and Phosphorus which retard growth and yield of cowpea crop. A field experiment was therefore conducted during the rainy seasons of years 2018 and 2019 respectively, at the student Research and Demonstration Farm, Faculty of Agriculture, Kogi State University, Anyigba. The aim of the trial was to evaluate the influence of Nitrogen-fertilizer-starter dose and phosphorus on growth, yield attributes, final Grain yi eld and Grain Crude Protein content of three varieties of cowpea in Anyigba. The N-fertilizer rates were -0, 10 and 20kg N/ha applied as urea, while the P rates were 0, 37.5 and 75.0 Kg P2O5/ha as single super phosphate (26. 0% P2O5). Factorial experiment was used and treatments were arranged and laid out in Split Plot Design (SPD) and replicated three times. The results indicated that for both years, Nitrogen and Phosphorus application resulted in significant (P < 0.05) increases in growth, some yield attributes and final Grain Yield of the three varieties of cowpea. One major significant outcome of the exp eriment was that while Nitrogen application significantl y (P<0.05) increased number of nodul es produced/plant for all the sampling periods and for both years, phosphorus application how ever had no significant (P>0.05) influence on the character (nodule) throughout the sampling periods and for both years. The highest grain yi eld of 0.93tonha -1 was obtained with application of 10 kg N and 37. 5 Kg P2O5/ha. Application of 10.0 Kg N ha -1 and 37.5 Kg P2O5 ha -1 of Phosphorus significantl y (P<0.05) yielded a Crude Protein Content of 20.83% and 23.31% over the control plot which gave 20. 54% and 19.17% Crude Protein respectively in 2018 trials. This trend was equally maintained in 2019 trials.
Field experiment was conducted at the Kogi State University Research and Demonstration Farm Anyigba, (Lat 7° 291 and Long 70 111E). Anyigba lies in the Guinea Savanna Agro-ecological Zone. This experiment was conducted during the raining season of 2021 to evaluate the effect of Farm Yard Manure and Nitrogen levels on the growth, yield characters and seed yield of sesame (Sesamum indicum L.). Treatments consisted of three levels of Farm Yard Manure (0 t ha -1 , 5 t ha -1 , 10 tonsha-1and 15 t ha -1 ) respectively and Nitrogen fertilizer rates (0 tons Nha-1, 0.02 t N ha -1 , 0.04 t N ha -1 and 0.06 t N ha -1 ) respectively. Factorial combination of treatments gave a total number of 16 treatments which was laid in a Randomized Complete Block Design (RCBD) with three replicates. 48 plots were obtained in total. Results showed that application of Farm Yard Manure did not influence (p≥0.05) all parameters studied in the experiment except dry weight/plant, plant height and seed yield/ha. Nitrogen application significantly influenced (p≤0.05) plant height and seed yield only. There was no significant interaction observed between Farm Yard Manure and Nitrogen levels in all parameters studied.
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