Growing Radish in Laikipia

Soil suitability analysis based on Laikipia's nutrient profile

Laikipia County is a solid choice for Radish, with a soil-match score of 64/100. At an average pH of 4.99 the soil is strongly acidic, below Radish's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.42 g/kg), phosphorus (16.6 mg/kg) and potassium (215 mg/kg) all meet Radish's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Radish, which favours sandy loam. Radish's full potential is about 8,000 kg/acre (~KES 320,000/acre at KES 40/kg), but at Laikipia's 64/100 suitability a realistic target here is closer to 6,400 kg/acre (~KES 256,000/acre) unless the constraints above are addressed.

64Suitability score

Soil & climate match

FactorLaikipia soilRadish needsStatus
pH4.9967.5Adjust
Nitrogen1.42 g/kgmin 0.8 g/kgOK
Phosphorus16.6 mg/kgmin 12 mg/kgOK
Potassium215 mg/kgmin 150 mg/kgOK
Rainfall600 mm500–1,000 mmOK
Altitude1,700 m500–2,500 mOK

Planting calendar

Long Rains

Month 1
Direct Sowing & Basal
Month 2
Thinning & Top Dressing
Month 3
Harvest

Short Rains

Month 1
Direct Sowing & Basal
Month 2
Thinning
Month 3
Harvest

Top dressing guide

Product
CAN
Timing
Week 2
Instruction
Fast crop — one light top-dress is enough. Excess nitrogen grows leaf not root.
Bags per Acre
0.2

Economics

Market priceKES 40/kg
Expected yield in Laikipia6,400 kg/acre
Estimated revenueKES 256,000/acre
Adjusted for Laikipia's 64/100 suitability. Under ideal conditions Radish can reach 8,000 kg/acre (~KES 320,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureSandy Loam

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