| Title | Description | Download |
| OFVI 2025 Identify, assess and engage with agro-input suppliers and cooperatives potentially interested in BEC production, tradind and end-user finance (Imp 1) | This report outlines OFVI’s efforts to promote bio-slurry and BEC adoption across five countries, identifying stakeholder engagement, demand potential, barriers, and recommendations for training, networks, certification, infrastructure, financing, and supportive policies to enhance sustainable agriculture. (Report is available in French and English) | |
| OFVI 2025 Synergies with relevant programmes, projects and interventions (Imp 2&9) | This report presents the results of OFVI’s mapping and engagement with existing agricultural programmes in Kenya and Uganda to support bio-slurry and BEC application. Separate reports are available for Kenya and Uganda. | |
| OFVI_Guidelines for bio-slurry and BEC production (Imp 3) | This report provides guidelines for the production and use of bioslurry and Bioslurry Enriched Compost (BEC). These guidelines are intended for use in Training of Trainers (ToT) sessions conducted by biodigester companies, public agricultural extension services, agro-input enterprises, and Vocational Training Centers (VTCs). They cover aspects such as product quality, shared ownership and responsibilities, and gender inclusivity. | |
| OFVI 2025 Assess which crops benefit most from bioslurry and BEC application (Imp 4) | The report evaluates carbon and nitrogen mass balances from mineral fertiliser and bio-slurry applications, assessing long-term nutrient dynamics, bio-slurry requirements, and soil erosion reduction under simplified assumptions about mineralisation and soil processes. | |
| OFVI 2025 On farm storage and processing bioslurry (Imp 5) | The report assesses the storage and processing of bio-slurry from household biodigesters in Kenya and Uganda.The report presents different storage and processing options, including liquid storage and composting into Bio-slurry Enriched Compost (BEC), and discusses related investment costs, labour requirements, and nutrient loss considerations. Separate reports are available for Kenya and Uganda. | |
| OFVI 2025 Implement strategy to overcome barries in Mali (Imp 5) | This report provides an overview of Bioslurry Enriched Compost production, highlighting the obstacles faced by users and the strategy to overcome these obstacles in Mali. Report is available in French only. | |
| OFVI 2025 Summary of BEC production, storage, packaging and application best practices, collected at farm level (Imp 6) | This report summarizes and highlights best practices in the production and application of bioslurry-enriched compost (BEC). Key findings include: Kenya & Uganda: BEC use is limited but recognized for its agronomic benefits. Burkina Faso: Well-established composting, often combined with Zaï, boosting yields up to 100%. Niger: Community biodigesters improve shared access to BEC where individual resources are limited. Mali: BEC reduces chemical fertilizer use but is constrained by seasonal organic matter shortages. | |
| OFVI 2025 Business case assessment for biodigesters owners using bioslurry and Bio-slurry Enriched Compost (BEC) (Imp 10) | This report presents the financial returns from increased crop yields, higher sales revenue, and reduced reliance on chemical fertilisers, developing a robust business case for smallholder farmers investing in biodigesters. Short-term returns are realized within 2½ years, with long-term benefits enhancing soil fertility, crop resilience, and farm revenue. | |
| OFVI 2025 Report on support BEC standardisation, labelling, rules & regulations (Imp 19) | This report summarizes the existing standards and policies related to organic fertilisers in Kenya, Uganda, Mali, Niger, and Burkina Faso. It includes an overview table that evaluates the completeness of these standards and policies against a set of key parameters, including: Packaging, Definitions of “Organic (fertiliser)”, “Fertiliser”,“Compost”, “Manure”, Quality control, Contaminants and Institutional support. In addition, the report outlines country-specific action plans to address identified gaps and strengthen the regulatory and policy framework in each of the five countries. | |
| Impact Report: The Positive Impacts of Biodigesters | This report from SNV shows how biodigester technology is transforming energy access, soil health, and rural livelihoods across 27 countries. Key impacts include: renewable energy access through biogas for cooking, lighting, and productive uses; fertiliser production (bio-slurry) that improves yields, soil health, and reduces reliance on synthetic fertilisers; time savings for women and children from reduced fuelwood collection; health benefits from cleaner cooking and reduced indoor air pollution; climate benefits through avoided deforestation and reduced greenhouse gas emissions (2–8 tons CO₂ equivalent per 6 m³ biodigester/year); economic gains from savings on energy and fertilisers plus income from compost and carbon credits; and job creation through training and employment for masons and biodigester enterprises. | |
| OFVI country kick-off meetings – report (Inc0) | This document reports on the kick-off meetings that took place in each OFVI country in late 2022. These meetings developed a common understanding of the activities and workplan of the OFVI project within a country-specific context. Participants included consortium members, national partners, lead implementers and other OFVI partners. |
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| Baseline current bio-slurry and BEC usage and barriers to increased organic fertiliser valorisation Burkina Faso-(Inc2) | This report presents baseline information on biodigester installation and functionality rates; practices surrounding feeding the biodigester, producing and storing slurry; making compost; applying slurry and compost on crops; motivations; informational needs; barriers to valorising organic fertiliser; and gender dynamics around the biodigester. | |
| Baseline current bio-slurry and BEC usage by biodigester households and their barriers to increased organic fertiliser valorisation – Kenya Inc2 | This report presents baseline information on biodigester installation and functionality rates; practices surrounding feeding the biodigester, producing and storing slurry; making compost; applying slurry and compost on crops; motivations; informational needs; barriers to valorising organic fertiliser; and gender dynamics around the biodigester. | |
| Baseline current bio-slurry and BEC usage by biodigester households and their barriers to increased organic fertiliser valorisation Uganda – (Inc2) | This report presents baseline information on biodigester installation and functionality rates; practices surrounding feeding the biodigester, producing and storing slurry; making compost; applying slurry and compost on crops; motivations; informational needs; barriers to valorising organic fertiliser; and gender dynamics around the biodigester. | |
| Strategy to overcome barriers to bio-slurry / BEC use – Report (Inc3) | This report presents a number of typical barriers to bioslurry and BEC use at the regional level and strategies to overcome them. Doing so, it elaborates which stakeholders are involved and what kinds of strategy exist. The report presents two tables, one for West Africa/Sahel (Burkina Faso, Mali and Niger) and one for East Africa (Kenya and Uganda). | |
| Bio-slurry & BEC Market Baseline Assessment – (Inc4) | This report provides an overview of the trade of organic fertilisers (including those derived from biodigesters) in each of the OFVI countries. It lists an inventory of enterprises active in this sector and identified challenges and opportunities around the valorisation of organic fertiliser. | |
| Literature review of best practices bio-slurry and BEC application_OFVI 2023_Inc5 report | This report provides an overview of bioslurry and BEC production and its use as an organic fertiliser on various crops (cereals, vegetables, grasses, tree crops, flowers) in the OFVI countries. It mainly covers agronomic and yield effects, and briefly discusses social benefits from biodigesters. | |
| The added value of bioslurry and BEC on cropping systems_OFVI 2023_Inc6 report | This report examines the economic value of using bioslurry and BEC as fertilizer in different cropping systems. It presents a selection of prevalent cropping systems in OFVI countries, including both staple and cash crops. It also includes an overview of climate and soil information for each country. These results are the basis for modelling crop responses to bioslurry and BEC in the implementation phase (Imp4). | |
| Influence of feedstocks on bio-slurry quality in Kenya_OFVI 2023_Inc7 report | A report on how different feedstocks (materials fed into the biodigester) affect the quality of bioslurry as fertiliser. Because biogas is of course an important product of the digestion process, feedstocks are evaluated both for their biogas potential and the bioslurry quality. This analysis also includes a calculation of feedstock availability from different sectors in Kenya. 10 mixtures of feedstocks including animal manures, municipal waste, market waste, oils, fruits, vegetables and fibres are considered. | |
| Business Case Assesment for end-user description approach and preliminary results_OFVI 2023_Inc8 report | This report covers the approach used in calculating the business case for smallholder farmers with biodigesters. It focuses on return on investment either through the use of bioslurry directly on crops or its sale to other farmers. Considered costs include the initial investment in a digester, labour costs, and agro-input costs. The results of this report contribute to the implementation phase assessment of business case for end-users of bioslurry and BEC (Imp10). | |
| Identify deficiencies in the enabling environment related to bioslurry valorisation and BEC trade (Inc 9) | This report presents the deficiencies in the enabling environment related to bioslurry valorisation and BEC trade in Kenya and Uganda. Using EnDev’s five indicators (policy, access to finance, standards, market information, expertise development), the study relied on documents, key informant interviews, and a validation workshop. Separate reports are available for Kenya and Uganda. | |
| Identify deficiencies in the enabling environment related to bioslurry valorisation and BEC trade (Inc 9) | This report presents the deficiencies in the enabling environment related to bioslurry valorisation and BEC trade in Mali and Niger. The increasing involvement of civil society actors in agroecology could, in the short term, pave the way for the establishment of a genuine agroecological social movement in Niger. Sustainable soil management practices are at the basis of the agroecological system in Mali and requires a strong enabling environment to change the mindset in agricultural advisory approach. Separate reports are available for Niger and Mali. | |
| OFVI strategy 2023-2025 – Report (Inc10) | At the culmination of the OFVI inception phase, this report outlines the strategy for the implementation phase. A distinction is made between country-specific points and those relevant to all countries. Strategy focuses mainly on improving farmers’ knowledge, improving assistance to biodigester companies, improving BEC production and standards, improving the enabling environment, and collaborating with other active initiatives in OFVI countries. Finally, the report provides a plan for mainstreaming gender issues into the broader OFVI implementation framework. |
OFVI – ABC
