Growing Macadamia in Makueni
Soil suitability analysis based on Makueni's nutrient profile
Possible but challenging — Makueni is only marginally suited to Macadamia. Makueni's soil (pH 7.5, alkaline) gives Macadamia a suitability score of 42/100. Match fertilizer to Makueni's nitrogen and phosphorus levels for the best result.
Makueni County is a challenging environment for Macadamia (soil-match score 42/100) and will need significant amendment before planting. At an average pH of 7.5 the soil sits above Macadamia's preferred 4.5–6.5 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 Macadamia's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Macadamia, which favours loam. On ShambaIQ's soil-match model, Macadamia is the #70 soil match of the 106 crops we assess for Makueni County. Macadamia's full potential is about 1,800 kg/acre (~KES 198,000/acre at KES 110/kg), but at Makueni's 42/100 suitability a realistic target here is closer to 945 kg/acre (~KES 103,950/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 | Macadamia needs | Status |
|---|---|---|---|
| pH | 7.5 | 4.5–6.5 | 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 | 700–1,500 mm | Low |
| Altitude | 1,000 m | 900–2,100 m | OK |
Planting calendar for Makueni
Long Rains· March–May
Short Rains· October–DecemberMain season here
Dry Season· January–March
Top dressing guide
Makueni's nitrogen (0.86 g/kg) already meets Macadamia's 0.8 g/kg requirement, so this is a maintenance rate.
Recommended seed varieties
No variety in our list is specifically rated for Makueni's 1,000 m altitude and 600 mm rainfall, so all 3 are shown. Confirm with your agrovet before buying.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag