Mauritania 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)
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Nitrogen (N) kg/ha
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Phosphorus (P₂O₅) kg/ha
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Potassium (K₂O) kg/ha

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

🛒 Fertilizer Shopping List
ProductBagsPrice/BagTotal
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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: Mauritania

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

Agriculture share of GDP~15%
Arable land500,000 ha
Irrigated share~10%
Main food cropsmillet, sorghum, rice, cowpea, dates

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

Fertilizer Use in Mauritania

Mauritania is a vast, predominantly desert country in West Africa where agriculture is limited to the Senegal River valley in the south, scattered oases, and rainfed farming in the Sahelian southern strip. The country's economy is driven by mining (iron ore) and fishing, with agriculture contributing about 15% of GDP. Rice, sorghum, millet, dates, and vegetables are the main crops. Fertilizer consumption is very low, estimated at 5,000 to 15,000 tonnes annually, reflecting the limited cultivated area. The SONADER (Societe Nationale de Developpement Rural) manages irrigated perimeters along the Senegal River, which are the primary users of mineral fertilizer. All fertilizer is imported, arriving through the port of Nouakchott or overland from Senegal. Desertification and land degradation are ongoing challenges threatening the limited agricultural base.

Common Fertilizer Types

DAP (18-46-0) is the most commonly used fertilizer in Mauritania, applied primarily in irrigated rice production along the Senegal River. Urea (46-0-0) is the standard nitrogen top-dressing for rice and other irrigated crops. NPK 15-15-15 is used for vegetable production in the peri-urban areas around Nouakchott and Nouadhibou, and in oasis agriculture. For date palm production in the Adrar and Tagant oases, limited fertilizer applications of NPK blends are recommended. Organic amendments are critical in Mauritanian agriculture, with composted livestock manure from the country's large pastoral herds (cattle, goats, sheep, camels) being the most accessible soil fertility input for most farmers. Sand dune fixation using organic mulches and wind-break plantations supports agricultural sustainability in areas threatened by desertification.

Subsidy Programs & Access

Mauritania's fertilizer distribution is primarily channeled through SONADER for irrigated agriculture and through the Commissariat a la Securite Alimentaire (CSA) for food security programs. The government provides subsidized inputs, including fertilizer, to farmers in irrigated perimeters, with costs partially deducted from rice sales through cooperative arrangements. The subsidy level varies but typically covers 20 to 40% of the market price. Farmer access is coordinated through local cooperatives managing irrigated perimeters and through village-level development committees in rainfed areas. International partners including the World Bank, AfDB, Islamic Development Bank, and FAO have supported agricultural input programs. The Programme Regional d'Appui au Pastoralisme au Sahel (PRAPS) and similar regional initiatives include components for improving soil fertility in pastoral and agro-pastoral zones. Access challenges include the sparse population distribution, limited road networks across the desert terrain, and the concentration of productive agriculture in the far south of the country.