Factors explaining the low and variable profitability of fertilizer application to maize in Zambia

By W. Burke, T. Jayne, J. Black. 2017

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Using agriculture for development: Supply- and demand-side approaches (2020, unknown): “For Zambia, Burke et al. (2017) show that only 8% of farmers can profit from basal chemical fertilizer applications due to lack of a complementary factor, in this case lime to achieve the desirable level of soil acidity.”
Review: Taking stock of Africa’s second-generation agricultural input subsidy programs (2018, methodology): “These mean response rates also mask substantial variability in response rates across farms and even plots on a given farm (Marenya & Barrett 2009; Xu et al., 2009; Burke et al., 2016; Burke et al., 2017).”