Growing Cotton in Embu

Soil suitability analysis based on Embu's nutrient profile

Quick answer

Yes, with the right inputs — Embu is moderately suited to Cotton. Embu's soil (pH 5.1, strongly acidic) gives Cotton a suitability score of 60/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Embu County is a solid choice for Cotton, with a soil-match score of 60/100. At an average pH of 5.1 the soil is moderately acidic, below Cotton's preferred 5.8–8 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.04 g/kg), phosphorus (12.6 mg/kg) and potassium (194 mg/kg) all meet Cotton's requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Cotton, which favours clay. On ShambaIQ's soil-match model, Cotton is the #55 soil match of the 106 crops we assess for Embu County. Cotton's full potential is about 900 kg/acre (~KES 61,200/acre at KES 68/kg), but at Embu's 60/100 suitability a realistic target here is closer to 675 kg/acre (~KES 45,900/acre) unless the constraints above are addressed.

60Suitability score

Soil & climate match

FactorEmbu soilCotton needsStatus
pH5.15.88Adjust
Nitrogen1.04 g/kgmin 0.8 g/kgOK
Phosphorus12.6 mg/kgmin 12 mg/kgOK
Potassium194 mg/kgmin 150 mg/kgOK
Rainfall1,300 mm450–1,200 mmHigh
Altitude1,400 m0–1,500 mOK

Top dressing guide

Product
CAN
Timing
Week 4–6 after emergence
Instruction
Apply at squaring stage for boll development.
Bags per acre in Embu
0.5

Embu's nitrogen (1.04 g/kg) already meets Cotton's 0.8 g/kg requirement, so this is a maintenance rate.

Seed varieties for Embu

Varieties suited to Embu's 1,400 m altitude and 1,300 mm annual rainfall — 1 of 2 cotton varieties we list.

KSA 81MDryland/Medium
KALRO · 150-180 days · 10-15 bags/acre
Medium staple; adapted to western Kenya conditions.

Economics

Market priceKES 68/kg
Expected yield in Embu675 kg/acre
Estimated revenueKES 45,900/acre
Adjusted for Embu's 60/100 suitability. Under ideal conditions Cotton can reach 900 kg/acre (~KES 61,200/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(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