African Cassava Agronomy Initiative (ACAI)


African Cassava Agronomy Initiative (ACAI)

Theme: Precision Nutrient Management
Start Date: 2016
End Date: 2021


  • International Institute of Tropical Agriculture (IITA)

Main Collaborators

APNI, International Institute of Tropical Agriculture (IITA)

Other Collaborators

  • National stakeholders [National Agricultural Research System (NARS), Universities], Africa Soil Information Service (AFSIS), KU Leuven, International Center for Tropical Agriculture (CIAT), Wageningen University

Target Crops


Target Countries

Nigeria, Tanzania


The project is focusing on developing and delivering knowledge and tools scaling site-specific cassava fertilizer and agronomic recommendations in the Nigeria and Tanzania while instituting the necessary capacity and skills for national system scientists to engage in transformative cassava agronomy. The project is also supporting partnerships with national system scientists. The target outcome is to improve cassava yields for over 100,000 households in Nigeria and Tanzania.


Objective 1:  To generate the lacking basic information on cassava growth and nutrient requirements to enable the development of best agronomic practices.

Objective 2:  To develop site specific recommendations based on smallholder farmers resources and production objectives that enable farmers to overcome their specific yield gap.

Objective 3:  To develop a decision support framework for development partners interacting with smallholder cassava farmers that allows bringing recommendations to scale.

Objective 4:  To develop scientific capacity within the national research systems by engaging them in transformative cassava R4D.