Growing Oats in Makueni
Soil suitability analysis based on Makueni's nutrient profile
Generally not ideal — Makueni is poorly suited to Oats. Makueni's soil (pH 7.5, alkaline) gives Oats a suitability score of 21/100. Match fertilizer to Makueni's nitrogen and phosphorus levels for the best result.
Makueni County is a challenging environment for Oats (soil-match score 21/100) and will need significant amendment before planting. At an average pH of 7.5 the soil sits above Oats's preferred 5.5–7 range, which can limit uptake of phosphorus and micronutrients. Nitrogen (0.86 g/kg), phosphorus (29.6 mg/kg) and potassium (351 mg/kg) all meet Oats's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Oats, which favours loam. At 1000 m, the county sits below Oats's preferred altitude range (1800–3000 m), which limits yield potential due to heat stress. On ShambaIQ's soil-match model, Oats is the #88 soil match of the 106 crops we assess for Makueni County. Oats's full potential is about 1,600 kg/acre (~KES 64,000/acre at KES 40/kg), but at Makueni's 21/100 suitability a realistic target here is closer to 420 kg/acre (~KES 16,800/acre) unless the constraints above are addressed.
Better matched to Makueni's soil: Lucerne, Mango, and Sisal — each scores higher on the same soil.
Soil & climate match
| Factor | Makueni soil | Oats needs | Status |
|---|---|---|---|
| pH | 7.5 | 5.5–7 | Adjust |
| Nitrogen | 0.86 g/kg | min 0.8 g/kg | OK |
| Phosphorus | 29.6 mg/kg | min 12 mg/kg | OK |
| Potassium | 351 mg/kg | min 150 mg/kg | OK |
| Rainfall | 600 mm | 500–1,000 mm | OK |
| Altitude | 1,000 m | 1,800–3,000 m | Low |
Planting calendar for Makueni
Long Rains· March–May
Short Rains· October–DecemberMain season here
Top dressing guide
Makueni's nitrogen (0.86 g/kg) already meets Oats's 0.8 g/kg requirement, so this is a maintenance rate.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag