V.  Ogwo, L.E.  Ndulue, C.N.  Anyanwu, C.C.  Mbajiorgu, 
    Agricultural Wastes as Potential Energy Resource in Nigeria: Current Status, Prospects and
Constraints,
    Research Journal of Agronomy,
    Volume 7,Issue 1,
    2013,
    Pages 1-12,
    ISSN 1815-9354,
    rjagr.2013.1.12,
    (https://makhillpublications.co/view-article.php?doi=rjagr.2013.1.12)
    Abstract: Agricultural wastes are by-products of
agricultural activities and take the form of crop residues
(residual stalks, straw, leaves, roots, husks, shells etc.)
and animal waste (animal faeces, droppings, etc.). In
Nigeria, large quantities of these wastes are produced
daily and are widely under-utilized. The traditional
practice is to burn these residues or leave them to
decompose. Agricultural wastes or residues are stock
piles of energy that could be processed into liquid
fuels or combusted/gasified to produce electricity and
heat. This study reviews the energy potentials of
common agricultural wastes like cassava peel,
sugarcane bagasse, yam peel, plantain peel, wood
sawdust and livestock droppings. Nigeria is currently the
largest producer of cassava in the world with about
52.4*106 tons of cassava in 2011 and about
5.24-7.86*106 tons of cassava peels which have energy
potential of about 85.83-128*109 MJ and 3.14-4.72*106
m<sup>3</sup> of biogas. About 2.1*106 tons of corn cob is generated
annually which can generate 3,922.45 MW of power,
1.062*09 m<sup>3</sup> of biogas, 0.67*109 of methane (CH4) and
27.824*09 MJ of energy. About 4.74-6.42*106 tons of
yam peel can generate about 77.79 -100*109J of energy.
Plantain peel generated is about 0.95-0.96*106 tons and
can generate 15.3-15.5*109 MJ of energy. About
2.09-2.5*103 kJ can be derived from 0.12-0.14*106 tons
of sugarcane bagasse that is currently discarded. Also
about 1.8 million tons of sawdust is generated annually
and it has an estimated energy value of 31,433 MJ that
is capable of generating 2.57*106 MWh that can
provide electricity for about 347,297.3 homes/yr,
assuming that each residential home consumes 7.4 MWh
per year. Nigeria currently produces about 4.57*106
tons/day (chicken-broiler), 147.72*106(goat) tons/day,
84.2*106 (sheep) tons/day, 311.4*106 (cow) tons/day,
27.18*106 (pig) tons/day totaling 575.1*106 tons/day
of animal wastes which is capable of generating
1.73*107 m<sup>3</sup>/day of biogas that can provide 1.94*104
MWh for about 262.2 homes/year for residential homes.
    Keywords: Agricultural wastes;energy potential;current status;prospects;constraints