Growing Rice (Upland) in Murang'a

Soil suitability analysis based on Murang'a's nutrient profile

Rice (Upland) can be grown in Murang'a County, but the soil scores 58/100 and needs targeted management to reach full potential. Local soils average pH 5.03 — moderately acidic and inside the 5–7 band Rice (Upland) prefers, so no lime is usually required. Nitrogen (1.2 g/kg), phosphorus (12.2 mg/kg) and potassium (168 mg/kg) all meet Rice (Upland)'s requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay soils suit Rice (Upland), which favours clay. Rice (Upland)'s full potential is about 1,800 kg/acre (~KES 189,000/acre at KES 105/kg), but at Murang'a's 58/100 suitability a realistic target here is closer to 1,305 kg/acre (~KES 137,025/acre) unless the constraints above are addressed.

58Suitability score

Soil & climate match

FactorMurang'a soilRice (Upland) needsStatus
pH5.0357OK
Nitrogen1.2 g/kgmin 1.2 g/kgOK
Phosphorus12.2 mg/kgmin 12 mg/kgOK
Potassium168 mg/kgmin 150 mg/kgOK
Rainfall1,200 mm800–2,000 mmOK
Altitude1,500 m0–1,300 mHigh

Top dressing guide

Product
Urea
Timing
Tillering and panicle initiation
Instruction
Split into 2 applications. Flooding helps N uptake.
Bags per Acre
1

Recommended seed varieties

NERICA 1Medium
WARDA/KALRO · 90-100 days · 15-20 bags/acre
Upland adapted; drought tolerant; good grain quality.
NERICA 10Medium/Dryland
WARDA/KALRO · 100-110 days · 12-18 bags/acre
Resistant to blast; good milling quality.

Economics

Market priceKES 105/kg
Expected yield in Murang'a1,305 kg/acre
Estimated revenueKES 137,025/acre
Adjusted for Murang'a's 58/100 suitability. Under ideal conditions Rice (Upland) can reach 1,800 kg/acre (~KES 189,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureClay

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