Forage Yield and Chemical Composition of Brachiaria Ruziziensis as Influenced by Fertilizer Rate

  • 1Munza, B. M., Department of Animal Science, Faculty of Agriculture, University of Maiduguri, P.M.B. 1069, Maiduguri, Borno State
  • 2Nwankwo, C. A., 2Department of Animal Science, Nnamdi Azikiwe University, Awka, Anambra State
  • 3Mangshin, G. B., 3Department of Crop Production, Abubakar Tafawa Balewa University, Bauchi, Bauchi State
  • 4Maigwaram, U.M. 4Department of Agronomy, Faculty of Agriculture, Federal University Kashere, Gombe State
  • 1Ashigar, F. M. Department of Animal Science, Faculty of Agriculture, University of Maiduguri, P.M.B. 1069, Maiduguri, Borno State
Keywords: Keywords: Brachiaria, Growth, Fertilizer, Forage, Harvest age

Abstract

Abstract

The study evaluated forage yield and quality of B. ruziziensis as influenced by NPK fertilizer at different ages. The experiment was laid out in a 4 x 4 factorial split-plot design and replicated 3 times. Fertilizer levels (0, 50, 100, and 150 Kg/ha) as the main plot and harvest age (4, 8, 12, and 16 WAS) as the sub-plot. There was a significant (P<0.05) effect of NPK on plant height (PH), leaf width (LW), tiller numbers (TN), and forage yields, while there was a non-significant (P>0.05) effect of fertilizer on the number of leaves (LN) and leaf length (LL). Higher (P<0.05) PH (84.87cm), LW (4.38cm), and forage yields (8.02 and 5.99 t/ha) were obtained at 150 kg/ha NPK, while higher (P<0.05) TN (7.72) was recorded at 100 kg/ha NPK. Significant (P<0.05) harvest age effect was observed on growth and forage yields in which higher (P<0.05) PH (102.76cm) and forage yields (8.37 and 6.62 t/ha) were obtained at 16 weeks after sowing (WAS) while NL (43.18), LL (40.94cm), LW (4.35cm) and TN (8.83) were recorded at 12 WAS. There was a significant (P<0.05) effect of age of harvest on chemical composition except ether extract. Higher (P<0.05) dry matter (89.99%), crude fibre (15.60%), ash (7.98%), neutral detergent fibre (24.92%), and acid detergent fibre (15.38%) were recorded at 16 WAS, while crude protein (22.93%) was higher (P<0.05) at 8 WAS. Nitrogen free extract (48.73%) was higher (P<0.05) at 12 WAS. In conclusion, yield and quality were improved with NPK at 100 and 150 kg/ha, while forage harvested at 16 WAS gave higher growth and better forage yields. Crude protein of forage with NPK was above 7 – 12% to meet the requirements of growing ruminants. It was recommended that for better yield and quality, 100 to 150 kg/ha NPK should be applied and harvested at 16WAS.

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References

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Published
2026-01-28
How to Cite
1Munza, B. M., 2Nwankwo, C. A., 3Mangshin, G. B., 4Maigwaram, U.M., & 1Ashigar, F. M. (2026). Forage Yield and Chemical Composition of Brachiaria Ruziziensis as Influenced by Fertilizer Rate. Nigerian Journal of Animal Science and Technology (NJAST), 8(4), 141-148. Retrieved from https://njast.com.ng/index.php/home/article/view/526