Quarterly Journal of International Agriculture No. 1/10
Determinants of adoption and intensity of use of balance nutrient management systems technologies in the northern Guinea savanna of Nigeria
A.A. Akinola
Obafemi Awolowo University, Ile-Ife, Nigeria
Arega D. Alene
International Institute of Tropical Agriculture, Lilongwe, Malawi
R. Adeyemo
Obafemi Awolowo University, Ile-Ife, Nigeria
D. Sanogo, A.S. Olanrewaju, C. Nwoke and G. Nziguheba
International Institute of Tropical Agriculture, Ibadan, Nigeria
Abstract
As part of a major effort to address soil fertility decline in West
Africa, an integrated soil fertility management project promoted two
technology packages: a combined application of inorganic fertilizer and
manure (BNMS-manure) and a soybean/maize rotation practice
(BNMS-rotation) in the northern Guinea savanna (NGS) of Nigeria. This
study used a tobit regression model to examine factors that influence
the adoption and intensity of use of the technologies. Empirical
results showed that within five years of introduction, the adoption of
BNMS-rotation had reached 40% while that of BNMS-manure had reached
48%. In terms of land area, BNMS-manure occupied 35% and BNMS-rotation
covered 12% of the total maize land in the zone. Factors such as access
to credit, farmers’ perception of the state of land degradation, and
assets ownership were the significant determinant factors of
BNMS-manure, whereas off-farm income was found to be significant in
determining farmers’ adoption decisions on BNMS-rotation.
Keywords: adoption, BNMS-manure, BNMS-rotation, northern Guinea savanna, tobit
JEL: O33
Vol. 49 (2010), No. 1: 25-45