FORAGE YIELD AND QUALITY OF TWO TROPICAL GRASS SPECIES AS INFLUENCED BY FERTILIZER TYPES DURING LATE RAINY SEASON IN ABEOKUTA, SOUTH- WESTERN, NIGERIA

Authors

  • Ewetola, I. A. Department of Animal Nutrition and Forage Science, College of Animal Science and Animal Production, Michael Okpara University of Agriculture, Umudike, Abia state.
  • Amisu, A. A. Department of Pasture and Range Management, College of Animal Science and Livestock Production, Federal University of Agriculture, Abeokuta, Ogun state.
  • Adebayo, K. O. Department of Animal Nutrition, College of Animal Science and Livestock Production, Federal University of Agriculture, Abeokuta, Ogun state.
  • Olanite, J. A. Department of Pasture and Range Management, College of Animal Science and Livestock Production, Federal University of Agriculture, Abeokuta, Ogun state.
  • Arigbede, O. M. Department of Pasture and Range Management, College of Animal Science and Livestock Production, Federal University of Agriculture, Abeokuta, Ogun state.

Keywords:

Fertilizer, Season, Tropical grasses, proximate composition, fibre fractions

Abstract

This experiment was carried out to evaluate forage yield, chemical composition and in vitro digestibility of Panicum maximum and Andropogon tectorum as affected by fertilizer types during the late rainy-season in Abeokuta, Ogun State. The study consisted of four fertilizer treatments (NPK 20:10:10 [NPK] fertilizer, Aleshinloye organo-mineral [AOM] fertilizer, poultry manure [PM], without fertilizer i.e. control) and two grass species (P. maximum var Ntchisi and A. tectorum). The laid out was 4 x 2 factorial arrangement in split-plot design, forming a total of 8 treatments replicated thrice. Eight weeks after cut back (WAC), forage was harvested for determination of botanical composition, yield and nutrient quality. Results revealed that P. maximum fertilized with AOM had the highest values (12.58 t/ha and 99.42%) for dry matter yield and forage proportion, respectively with the lowest value (0.58%) for weed proportion. Ether extra (EE) and hemicellulose were affected significantly (P<0.05) by grass species, while dry matter (DM), (EE) and non fibre carbohydrate (NFC) values were significantly different due to fertilizer types. The mineral contents of the two grasses were significantly influenced by fertilizers applied, and P. maximum fertilized with PM had the best performance. NPK fertilized A. tectorum had the highest metabolizable energy (ME) of 16.16 MJ/kg and that of control recorded the least ME of 10.96MJ/kg. Therefore, it was concluded that feed resource from dry season forage production could be achieved when AOM was properly incorporated to field where Panicum maximum (Ntchisi) is established.

Published

2022-06-30