Ghana Fertilizer Calculator

Estimate a planning NPK requirement for supported crops, then confirm the field rate with a soil test and local agronomist.

🧪 Calculate Fertilizer Needs
Only crops with a maintained nutrient-removal method are listed. Ask a local agronomist for crop- and field-specific rates.

Enter values for a more accurate recommendation. Leave blank for regional estimates.

🌱 NPK Requirement (per hectare)
--
Nitrogen (N) kg/ha
--
Phosphorus (P₂O₅) kg/ha
--
Potassium (K₂O) kg/ha

For -- targeting -- t/ha on -- ha

🛒 Fertilizer Shopping List
ProductBagsPrice/BagTotal
--
Market price total

📅 Application Schedule
🌿 Organic Alternatives

Equivalent organic inputs to supply the same nitrogen. Organic sources also improve soil structure.

💡 Why Soil Testing Matters
Why should I test my soil?

Soil testing reveals exactly what nutrients your soil already has. Without it, you might over-apply (wasting money) or under-apply (limiting yields).

When NOT to apply fertilizer

Avoid applying on waterlogged soil, during heavy rain, or when crops are drought-stressed. Do not apply urea on hot, dry surfaces.

Fertilizer safety tips

Store in dry, cool places away from children and animals. Wear gloves. Never mix different fertilizers unless recommended.

Farming context: Ghana

Ghana fertilizer estimates use the selected crop, field, soil and product assumptions from the GH agriculture dataset. Check local conditions before applying national averages.

Agriculture share of GDP~20%
Arable land8,700,000 ha
Irrigated share~0.4%
Main food cropscassava, yam, maize, rice, plantain, cocoyam
Main export cropscocoa, cashew, shea, rubber, oil palm

Country context from the AfroTools agriculture dataset - planning reference, not agronomic advice. Confirm with local extension services.

Fertilizer Use in Ghana

Ghana is West Africa's second-largest economy and a major agricultural producer, with cocoa, maize, rice, cassava, and vegetables driving fertilizer demand. Annual fertilizer consumption ranges from 300,000 to 500,000 tonnes, boosted significantly by the Planting for Food and Jobs (PFJ) program launched in 2017. The country imports most of its fertilizer, though local blending and manufacturing capacity has expanded with facilities operated by companies like Yara Ghana, RMG Ghana (now Chemico), and OCP Africa. The cocoa sector, managed by COCOBOD, and the food crop sector under PFJ represent the two main channels for fertilizer distribution. Ghana's diverse agroecological zones, from the coastal savanna to the Guinea savanna in the north, require different fertilizer strategies for different crops and soils.

Common Fertilizer Types

NPK 15-15-15 is the most widely used compound fertilizer in Ghana, suitable for a broad range of food crops including maize, rice, and vegetables. Cocoa-specific fertilizers, branded as "Asaase Wura" and distributed through COCOBOD, contain tailored NPK ratios with micronutrients for cocoa production. Urea (46-0-0) is the standard nitrogen top-dressing for cereals. SOA (sulfate of ammonia, 21-0-0-24S) is increasingly promoted as an alternative nitrogen source that also addresses sulfur deficiency. DAP is used in rice production, particularly in the northern regions and irrigated schemes. NPK 23-10-5 and other high-nitrogen blends are recommended for maize in the transition and Guinea savanna zones. Locally blended fertilizers are becoming more common, with formulations tailored to specific crop and regional soil needs based on soil mapping exercises.

Subsidy Programs & Access

Ghana's Planting for Food and Jobs (PFJ) program is one of West Africa's most prominent input subsidy schemes. Under PFJ, registered smallholder farmers receive subsidized fertilizer at approximately 50% of the market price, along with improved seeds. Farmers register through the Municipal and District Agriculture Offices and receive e-vouchers redeemable at certified agro-dealer shops. The program targets food crop farmers growing maize, rice, sorghum, soybeans, and vegetables. For cocoa, COCOBOD operates a separate subsidized fertilizer program, distributing cocoa fertilizer at below-cost prices through Licensed Buying Companies (LBCs) and community purchasing clerks. PFJ distribution is managed through a network of over 2,000 certified agro-dealers across the country. The government has introduced digital platforms for farmer registration and voucher redemption to improve transparency and reduce fraud. The subsidy program has significantly increased fertilizer use across Ghana, though concerns about fiscal sustainability, targeting efficiency, and private sector crowding-out continue to be debated.