SIMLESA overview

Project Objectives

  • Socioeconomics, Policy and Markets Research

    Objective 1

    To characterize maize-legume production and input and output value chain systems and impact pathways, and identify broad systemic constraints and options for field testing.

  • Adaptive Agronomy Research

    Objective 2

    To test and develop productive, resilient and sustainable smallholder maize-legume cropping systems and innovation systems for local scaling out.

  • Maize and Legume Seed Systems Development

    Objective 3

    To increase the range of maize and legume varieties available through accelerated breeding, regional testing and release, and availability of performance data

  • Identifying Effective Scaling Modalities

    Objective 4

    To support the development of regional and local innovations systems

  • Capacity Development

    Objective 5

    Capacity building to increase the efficiency of agricultural research today and in the future

Project Impacts

  • Scientific Impact


    Through partnership and collaborative research in the target countries, in line with the program design, the SIMLESA program has consistently maintained its focus on generating scientific impacts.

  • Capacity Impact


    SIMLESA has continued to deliberately direct its efforts on trainings in conservation agriculture principles and technologies; sustainable and climate responsive agriculture production systems; agricultural production systems simulations; risk management and systems modelling acknowledging the socioeconomic dynamics of households in different sites.

  • Community Impact


    During the design phase, the program set targets and adoption pathways to achieve scaling out processes in terms of the number of research communities covered, number of farmers reached out and the number of adopters (these being the farmers who have learned, embraced and started practising sustainable intensification technologies).

  • Economic Impact


    SIMLESA has brought increased use of CA-based sustainable intensification options technology in communities which have also led to evident reduction of production costs and increased crop productivity per unit area especially and dietary diversification in farm households where maize and legumes are intercropped.

  • Social Impact


    SIMLESA, on the social dimension side, continues to improve family fabric through the hosting of exploratory trials which promote the participation of men, women and youths thereby making everyone strategic and important participant in household farming activities.

  • Environmental Impact


    Climate change is expected to negatively impact agricultural production in SIMLESA countries. Low-nitrogen stress combined with drought and heat stress will become increasing constraints on maize production, and on growing improved varieties.


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Farmer and extension manual

Manual for the on-station trials conducted to demonstate maize-soybean rotation under Conservation Agriculture .

Farmer and extension manual

This is a series of 10 manuals in Amharic language. Topics covered include crop rotation and inter-cropping among other conservation agriculture practices.

Working paper

A study assessing the role of crop diversification in minimizing the downside risks associated with the use of improved seed and chemical fertilizer in maize production.

Working paper

This study of the AIPs showed that both women and men experienced an increase in the yields as a result of better agricultural training.

Working paper

A working paper on the importance of youth and women participation for the enhancement of resilient and sustainable farming.

Working paper

This paper attempted to show some of the power relations between husbands and wives in the communities under study in Mozambique.

Working paper

An analysis of socio-economic characteristics of households that affect husbands’ and wives’ decision-making intensity on the use of income derived from crop and livestock sale.

Working paper

This article examines the participation and involvement of men, women and children, from the production to the selling and processing of maize.

Working paper

A study on how the practice of CA under SIMLESA promotes aggregation of soil particles which improves overall soil structure.

Working paper

ACIAR report on achievements of SIMLESA’s program activities, its outputs and milestones.

Key highlights from the SIMLESA program

SIMLESA, in collaboration with other programs, facilitated the release of 40 new maize varieties. ... Many of which were specifically selected for their drought tolerance and some of which were selected for their phenotypic characteristics suitable for maize-legume intercropping in conservation agriculture systems.

Considering the importance of legume in food security and plant based protein nutrition of many families,... SIMLESA co-sponsored participatory varietal selections (PVSs) sessions involving 378 legume varieties. A total of 64 varieties across the five program countries positively met PVS team’s criteria and therefore were acceptable for official release.

Toward the end of 2016, the program managed to competitively select 19 partners drive the scaling out initiatives under the Competitive Grants Scheme (CGS).

A total of 58 Innovation Platforms were established to assist in scaling out ...of Sustainable agricultural intensification (SAI) technologies and viable marketing of agricultural produce for maximum benefits.

A regional policy summit was held in October 2015 which resulted in the signing of a Ministerial Cummunique by five countries... (Ethiopia, Kenya, Tanzania, Mozambique, Rwanda) committing to the mainstreaming of SIMLESA resultsin their countries' agricultural policies.

The project has been determined to reach out to the policy community with the publication and dissemination of more than 57 policy briefs....These have been variously disseminated at project annual meetings, other gatherings and also be found on this page.

Impact Areas

Eastern and Southern Africa

Where We Work


Country Focus


Country Focus


Country Focus


Country Focus


Country Focus

Funded by:


  • Phone number : +254 720 722 4306

  • Address: P.O. Box 1041-00621
    ICRAF House, United Nations Avenue
    Gigiri, Nairobi,

Copyright 2018