Does simultaneous adoption of drought-tolerant maize varieties and organic fertiliser affect productivity and welfare outcomes? Evidence from rural Nigeria

A - Papers appearing in refereed journals

Oyetunde-Usman, Z., Shee, A. and Abdoulaye, T. 2024. Does simultaneous adoption of drought-tolerant maize varieties and organic fertiliser affect productivity and welfare outcomes? Evidence from rural Nigeria. The Australian journal of agricultural resource economics. https://doi.org/10.1111/1467-8489.12550

AuthorsOyetunde-Usman, Z., Shee, A. and Abdoulaye, T.
Abstract

The promotion of improved maize varieties and chemical fertilisers underscores many policy approaches addressing multiple production risks such as poor soil fertility and drought. However, the unsustainable use of chemical fertilisers has important implications for soil degradation. The synergies between improved maize varieties and sustainable land use management practices such as the use of organic fertilisers (e.g., manure) are poorly documented, despite the role of manure in enhancing soil organic matter. Employing nationally representative household survey data in Nigeria, this study utilises multivalued inverse probability weighted regression adjustment, entropy balancing and a multinomial endogenous switching regression model to determine the effects of the adoption of drought-tolerant maize varieties (DTMVs) and organic fertiliser on farm households' productivity, per capita total expenditure and per capita food expenditure. Controlling for farm households' observables and unobservables, the estimation results of the average treatment effects show that the highest pay-off on productivity and welfare outcomes is achieved when DTMVs and manure are jointly adopted. Also, wealth indicators, access to loans and access to extension services significantly influenced individual and combinatory packages of DTMVs and manure application adoption. This study underlines the significance of the joint adoption of DTMVs and manure application on rural farmers' productivity and welfare and a substantial contribution to achieving sustainable agricultural practices.

KeywordsClimate-smart agriculture; Drought; Improved maize varieties; Manure; Multinomial endogenous switching regression ; Multivalued inverse probability weighting regression adjustment; Organic fertiliser; Sub-saharan Africa
Year of Publication2024
JournalThe Australian journal of agricultural resource economics
Digital Object Identifier (DOI)https://doi.org/10.1111/1467-8489.12550
Open accessPublished as non-open access
Output statusPublished
Publication dates
Online30 Jan 2024
Publication process dates
Accepted06 Dec 2023

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