Growing Napier Grass in Homa Bay

Soil suitability analysis based on Homa Bay's nutrient profile

Quick answer

Yes, with the right inputs — Homa Bay is moderately suited to Napier Grass. Homa Bay's soil (pH 5.27, strongly acidic) gives Napier Grass a suitability score of 73/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Homa Bay County is a solid choice for Napier Grass, with a soil-match score of 73/100. Local soils average pH 5.27 — moderately acidic and inside the 5–8 band Napier Grass prefers, so no lime is usually required. The main gap is potassium — measured at N 1.05 g/kg, P 13.8 mg/kg, K 147 mg/kg against this crop's medium/low/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly clay loam soils suit Napier Grass, which favours loam. At current prices (about KES 5/kg) and a typical 30,000 kg/acre yield, a well-managed Napier Grass crop here can gross roughly KES 150,000 per acre.

73Suitability score

Soil & climate match

FactorHoma Bay soilNapier Grass needsStatus
pH5.2758OK
Nitrogen1.05 g/kgmin 0.8 g/kgOK
Phosphorus13.8 mg/kgmin 6 mg/kgOK
Potassium147 mg/kgmin 150 mg/kgLow
Rainfall1,100 mm800–2,000 mmOK
Altitude1,200 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
0.5

Recommended seed varieties

Clone 13Medium/Highland
ICIPE/KALRO · 90-120 days · 10–15 tons/acre
Push-pull trap crop; high biomass; excellent fodder quality.
Kakamega 1Medium
KALRO · perennial days · 9–12.5 tons/acre
High dry matter yield; tolerant to head smut disease.

Economics

Market priceKES 5/kg
Expected yield in Homa Bay27,375 kg/acre
Estimated revenueKES 136,875/acre
Adjusted for Homa Bay's 73/100 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(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