Soil quality and fertilizer use rates among smallholder farmers in western Kenya

By P. Marenya, Christopher B. Barrett. 2009

224 citations recorded by the source corpus.

Subfields: General Agricultural and Biological Sciences, Global and Planetary Change, Soil Science

View Paper: https://www.semanticscholar.org/paper/cbfea133d0b4434217c089232ef00d4ebb247023

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In General Agricultural and Biological Sciences

In Global and Planetary Change

In Soil Science

Citations in the corpus

Effects of rising rural population density on smallholder agriculture in Kenya (2014, background): “Moreover, especially in densely populated areas, soils have been continuously cultivated and are facing fertility constraints that make them less responsive to inorganic fertilizer (Drechsel et al., 2001; Marenya and Barrett, 2009; Titto-nell and Giller, 2012; Sheahan et al., 2013).”
Climate change adaptation and mitigation in smallholder crop–livestock systems in sub-Saharan Africa: a call for integrated impact assessments (2016, background): “2015), and this riskiness is a disincentive for farmers to invest in agronomic inputs (Marenya and Barrett 2009).”
Limits to Green Revolution in rice in Africa: The case of Ghana (2017, background): “Marenya and Barrett (2009a) and Matsumoto and Yamano (2010) demonstrated that the profitability of adoption of improved technology can differ significantly by soil quality even for plots in roughly similar agroecological conditions.”
Measurement Error Mechanisms Matter: Agricultural Intensification with Farmer Misperceptions and Misreporting (2019, unknown): “16For instance, concentration soil organic matter influences the profitability of fertilizer and hence its extensive margin use (Marenya and Barrett, 2009; Kihara et al., 2016), whereas soil nutrient deficiencies margin adoption of improved seed, fertilizer, or pesticide represent agricultural…”
Maize Revolutions in Sub-Saharan Africa (2011, background): “…has confirmed that removing fertilizer supply constraints will encourage use by wealthier farmers who cultivate better soils but have no impact on use by poorer farmers who grow maize on degraded land where fertilizer response is not enough to make its use profitable (Marenya and Barrett 2009a,b).”
Well-Being Dynamics and Poverty Traps (2016, methodology): “Michelson et al. (2013) show that the empirical tests for poverty traps defined in relation to an asset index are not robust to the methodology used to generate that asset index.”
The Economics of Poverty Traps and Persistent Poverty: Empirical and Policy Implications (2013, background): “…with marginal or fragile soils have no incentive to apply fertilisers or to invest in soil conservation measures, creating a downward spiral of deteriorating soils, lower productivity and persistent poverty (Antle, Stoorvogel, & Valdivia, 2006; Marenya & Barrett, 2009a, b; Stephens et al., 2012).”