Farming context: Guinea-Bissau
Guinea-Bissau fertilizer estimates use the selected crop, field, soil and product assumptions from the GW agriculture dataset. Check local conditions before applying national averages.
| Agriculture share of GDP | ~50% |
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| Arable land | 600,000 ha |
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| Irrigated share | ~2% |
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| Main food crops | rice, cassava, groundnut, millet, sorghum |
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| Main export crops | cashew |
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Country context from the AfroTools agriculture dataset - planning reference, not agronomic advice. Confirm with local extension services.
Fertilizer Use in Guinea-Bissau
Guinea-Bissau is a small West African nation where cashew nut production dominates the economy, accounting for over 90% of exports. Agriculture employs about 80% of the population, with rice as the main food crop and cashew as the primary cash crop. Annual fertilizer consumption is very low, estimated at under 5,000 tonnes, as most farming systems rely on natural soil fertility with minimal external inputs. Rice cultivation occurs in both rainfed upland areas and in the mangrove-edge paddy systems (bolanhas) that characterize the coastal zones. Fertilizer imports are limited and arrive through the port of Bissau. The country's agricultural research institute (INPA) and extension services have limited capacity to promote fertilizer use. Political instability has further constrained agricultural investment and input supply chain development.
Common Fertilizer Types
NPK 15-15-15 is the most commonly available compound fertilizer in Guinea-Bissau, used primarily by the few semi-commercial rice and vegetable growers. Urea is applied in limited quantities to lowland rice in the bolanhas and in upland rice areas. For cashew orchards, fertilizer use is minimal, with most production relying on natural soil fertility, though phosphorus and potassium applications have been shown to significantly boost nut yields. DAP is occasionally available through development projects targeting rice intensification. Organic practices predominate, with mangrove mud (used in bolanha rice systems), composted household waste, and green manures from improved fallows serving as the primary soil amendment strategies. The traditional bolanha rice system incorporates nutrient-rich tidal deposits, providing a natural form of soil replenishment.
Subsidy Programs & Access
Guinea-Bissau does not currently operate a formal national fertilizer subsidy program. Agricultural input support is primarily provided through international development and humanitarian programs. FAO, the World Bank, and bilateral partners (particularly Portugal and Brazil) have supported input distribution programs targeting rice and vegetable production. When available, subsidized fertilizer is distributed through the regional agriculture directorates and farmer organizations. The PRESAR (Post-Crisis Economic and Agricultural Rehabilitation Program) and similar initiatives have included input supply components. Access remains extremely limited in rural areas, where the commercial agro-dealer network is virtually non-existent outside Bissau and a few regional capitals. Farmer organizations, particularly in the rice-growing Tombali, Quinara, and Oio regions, serve as the primary channel for whatever development program-supported inputs reach rural communities.