Growing Coconuts in Makueni

Soil suitability analysis based on Makueni's nutrient profile

Quick answer

Generally not ideal — Makueni is poorly suited to Coconuts. Makueni's soil (pH 7.5, alkaline) gives Coconuts a suitability score of 11/100. Match fertilizer to Makueni's nitrogen and phosphorus levels for the best result.

Makueni County is a challenging environment for Coconuts (soil-match score 11/100) and will need significant amendment before planting. Local soils average pH 7.5 — alkaline and inside the 5.5–8 band Coconuts prefers, so no lime is usually required. Nitrogen (0.86 g/kg), phosphorus (29.6 mg/kg) and potassium (351 mg/kg) all meet Coconuts's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Coconuts, which favours sandy. At 1000 m, the county sits above Coconuts's preferred altitude ceiling of 400 m, where frost risk and cold nights reduce the crop's productivity. Coconuts's full potential is about 2,500 kg/acre (~KES 55,000/acre at KES 22/kg), but at Makueni's 11/100 suitability a realistic target here is closer to 344 kg/acre (~KES 7,568/acre) unless the constraints above are addressed.

11Suitability score

Soil & climate match

FactorMakueni soilCoconuts needsStatus
pH7.55.58OK
Nitrogen0.86 g/kgmin 0.5 g/kgOK
Phosphorus29.6 mg/kgmin 6 mg/kgOK
Potassium351 mg/kgmin 200 mg/kgOK
Rainfall600 mm650–2,000 mmLow
Altitude1,000 m0–400 mHigh

Top dressing guide

Product
CAN
Timing
Biannual start of rains
Instruction
Apply in a ring 1m from the base. Coconuts are heavy potassium feeders — supplement with muriate of potash.
Bags per Acre
0.5

Recommended seed varieties

East African TallCoastal
KALRO · 1500-2000 days · 7.2–10.8 tons/acre
Traditional variety; high nut yield; excellent adaptation to Kenya coast.
Malayan DwarfCoastal
KALRO · 1200-1800 days · 8.1–11.7 tons/acre
Early bearing dwarf; good for small farms; high copra content.

Economics

Market priceKES 22/kg
Expected yield in Makueni344 kg/acre
Estimated revenueKES 7,568/acre
Adjusted for Makueni's 11/100 suitability. Under ideal conditions Coconuts can reach 2,500 kg/acre (~KES 55,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureSandy

Fertilizer prices

DAP
KES 3,500(6,500)
CAN
KES 2,875(4,500)
NPK 17:17:17
KES 3,275(5,600)
Urea
KES 3,500(5,500)
Lime
KES 1,500(1,800)

Green = subsidized · (Commercial) per 50kg bag