By Brandon Moss

For millions of African farmers, the decision to use fertiliser, improved seed or crop-protection products does not begin with a government policy or an agricultural research paper. It often begins at a small shop in a rural trading centre, where a farmer asks a simple question: Will this product actually work on my farm?

That question is becoming increasingly important as African countries seek to raise agricultural productivity and encourage farmers to use more modern inputs. New research from Tanzania’s Morogoro region highlights an often-overlooked factor in that process — the stability and reliability of the agro-dealer supplying those inputs.

Agro-dealers sit at a critical point between agricultural manufacturers and farmers. They are often the people who explain how fertiliser should be applied, recommend products, provide information about availability and, in many rural communities, serve as one of the few accessible sources of agricultural advice. When that relationship works well, an agro-dealer can become an important part of a farmer’s production system.

But when retailers frequently change ownership, close down or disappear from local markets, that relationship becomes much harder to establish. Farmers may become uncertain about where to obtain reliable products or whether advice received from one supplier can be trusted. The result can be reluctance to invest in inputs that are already viewed as a significant financial risk.

This matters because Africa’s productivity challenge is not simply about putting more fertiliser into the soil. Farmers need confidence that the product is genuine, appropriate for their crop and supported by accurate advice. They also need to know that they will be able to return to the same market for future purchases, particularly when they are building a production system over several seasons.

The Tanzanian research therefore points to a broader issue within African agriculture: trust is an agricultural asset.

A farmer who has had a positive experience with an agro-dealer is more likely to return, ask questions and potentially experiment with new products. A farmer who has purchased an unsuitable or poor-quality input may become much more cautious, even when better products are available.

This can create a cycle that affects the entire agricultural value chain. Lower confidence reduces input adoption, lower adoption can constrain yields, weaker demand reduces turnover for retailers, and struggling retailers may have fewer resources to invest in staff, technical knowledge and reliable stock.

The challenge is particularly important as African agriculture becomes more commercial. Farmers are increasingly expected to move from subsistence production towards supplying structured markets, processors and urban consumers. That transition requires greater use of improved seed, fertiliser, crop protection, irrigation and mechanisation.

Yet the adoption of technology rarely happens simply because the technology exists.

Farmers need information, demonstrations and evidence that an investment will generate a return. This is where agro-dealers can become much more than retail outlets. With the right training, they can function as the final-mile extension network connecting agricultural science and commercial products to farmers.

That could become increasingly valuable as public extension services struggle to reach growing farming populations.

The opportunity is also relevant to governments and development organisations designing agricultural programmes. Large input-subsidy programmes can distribute millions of bags of fertiliser or seed, but their long-term impact depends partly on whether farmers develop the knowledge and confidence to continue using productive inputs when subsidies are reduced or removed.

Strengthening the private agricultural retail network could therefore complement public extension rather than compete with it.

Digital technology could make the model even more powerful. Agro-dealers could use mobile platforms to check product authenticity, access technical information, receive weather updates, connect farmers with suppliers and record demand for different inputs. Manufacturers could also use these networks to monitor distribution and improve their understanding of local markets.

But technology cannot completely replace trust.

A farmer standing in a rural shop still needs confidence that the person across the counter understands the product and has an interest in helping the farm succeed. That human relationship can determine whether a new agricultural technology is adopted or ignored.

For Africa, this has implications far beyond fertiliser. As new seed varieties, biological inputs, digital farming tools, crop-protection products and climate-smart technologies enter the market, farmers will need trusted channels through which those innovations can reach them.

The future of African agriculture may therefore depend partly on strengthening one of its least celebrated businesses: the rural agro-dealer.

Improving farm productivity requires better seeds, better fertiliser, better technology and better farming practices. But it also requires a reliable bridge between those innovations and the farmer.

In many communities, that bridge is already standing behind a small shop counter.

The question now is whether Africa can turn its agro-dealer network into a stronger part of the continent’s agricultural productivity system.