Growing Napier Grass in Kilifi

Soil suitability analysis based on Kilifi's nutrient profile

Quick answer

Yes, with the right inputs — Kilifi is moderately suited to Napier Grass. Kilifi's soil (pH 6.24, slightly acidic) gives Napier Grass a suitability score of 67/100. Match fertilizer to Kilifi's nitrogen and phosphorus levels for the best result.

Kilifi County is a solid choice for Napier Grass, with a soil-match score of 67/100. Local soils average pH 6.24 — slightly acidic to near-neutral and inside the 5–8 band Napier Grass prefers, so no lime is usually required. The main gap is potassium — measured at N 0.8 g/kg, P 11 mg/kg, K 109 mg/kg against this crop's medium/low/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy loam soils suit Napier Grass, which favours loam. On ShambaIQ's soil-match model, Napier Grass is the #52 soil match of the 106 crops we assess for Kilifi County. Napier Grass's full potential is about 30,000 kg/acre (~KES 150,000/acre at KES 5/kg), but at Kilifi's 67/100 suitability a realistic target here is closer to 25,125 kg/acre (~KES 125,625/acre) unless the constraints above are addressed.

67Suitability score

Soil & climate match

FactorKilifi soilNapier Grass needsStatus
pH6.245–8OK
Nitrogen0.8 g/kgmin 0.8 g/kgOK
Phosphorus11 mg/kgmin 6 mg/kgOK
Potassium109 mg/kgmin 150 mg/kgLow
Rainfall700 mm800–2,000 mmLow
Altitude150 m0–2,500 mOK

Top dressing guide

Product
CAN
Timing
After each cut
Instruction
Apply after every harvest cut to support rapid regrowth. Critical for maintaining high biomass yield.
Bags per acre in Kilifi
0.5

Kilifi's nitrogen (0.8 g/kg) already meets Napier Grass's 0.8 g/kg requirement, so this is a maintenance rate.

Recommended seed varieties

All 2 listed napier grass varieties shown — none are specifically rated for Kilifi's conditions. Confirm with your agrovet.

Clone 13· Medium/HighlandKakamega 1· Medium
Full variety details — maturity, yield & breeder →

Economics

Market priceKES 5/kg
Expected yield in Kilifi25,125 kg/acre
Estimated revenueKES 125,625/acre
Adjusted for Kilifi's 67/100 suitability. Under ideal conditions Napier Grass can reach 30,000 kg/acre (~KES 150,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureLoam

Fertilizer prices

DAP
KES 3,500(6,500)
CAN
KES 2,875(5,700)
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