Agricultural Intensification and Efficiency in the West African Savannahs: Evidence from Northern Nigeria |
Common terms and phrases
agricultural intensification agro-ecological zones animal traction average economic efficiency cash income categorical variables chemical fertilisers Coelli constrained model continuous cropping cowpea crop and livestock crop farmers Crop farms crop residue crop-livestock integration crop-livestock interaction dependent variable domain and farm ecozones efficiency of farms factors and covariates fallow farm type farm-specific farms according fertilisers frontier production function hectare high-population-high-market higher HPLM improving increase indicators of intensification inefficiency effects inputs intensification and crop-livestock interaction and integration kg/ha land use intensity legume livestock Livestock farms logistic regression logistic regression model low-population-high-market low-population-low-market LPHM M.A. Jabbar market access McIntire mixed farmers mixed farms NGS and SS NGS LPLM Nigeria non-users of manure Northern Guinea savannah output P(EEFARM parameters population density population pressure pressure and market production domain production function savannah zones semi-arid zone socio-economic domains SS HPHM SS LPLM study area Sudan savannah Table technologies TLU/ha users and non-users values West Africa