fertiliser

A model of trade and agriculture applied to Sri Lanka’s 2021 chemical fertiliser import ban shows how costly fertiliser shortages can be. However, the model also shows why local field-experiment estimates of fertiliser’s effect on crop yield can exag...

When fertiliser prices spike, farmers in countries dependent on fertiliser imports are hit especially hard, and governments must grapple with a range of trade-offs in how they respond.

Ethiopia’s fertiliser blending initiative shifted farmers to new products but failed to boost yields or incomes – underscoring that fertiliser supply reforms must be paired with broader investments in seeds, water, soils, and markets to raise product...

Climate change is increasing the severity and incidence of extreme weather events. How can policymakers help build farmer resilience to these shocks?

With more inputs, improved crop varieties can yield more. But do Ethiopian maize farmers know enough about their seeds to optimise fertiliser use?

A low-touch information campaign in Tanzania improved farmers’ confidence in the quality of fertiliser, leading to an increase in purchases

Digital tools with site-specific fertiliser advice and information on expected returns can increase farmers’ yields by encouraging fertiliser use

Simple, cost-effective ‘rule-of-thumb’ training on urea application may improve fertiliser management

Evidence from Tanzania shows fertiliser quality is not the problem, rather it is farmers’ perceived belief of bad fertiliser quality that is