Growing Garden Peas in Laikipia

Soil suitability analysis based on Laikipia's nutrient profile

Quick answer

Possible but challenging — Laikipia is only marginally suited to Garden Peas. Laikipia's soil (pH 4.99, strongly acidic) gives Garden Peas a suitability score of 41/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Laikipia County is a challenging environment for Garden Peas (soil-match score 41/100) and will need significant amendment before planting. At an average pH of 4.99 the soil is strongly acidic, below Garden Peas's preferred 5.5–7 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 Garden Peas's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Garden Peas, which favours sandy loam. On ShambaIQ's soil-match model, Garden Peas is the #77 soil match of the 106 crops we assess for Laikipia County. Garden Peas's full potential is about 2,500 kg/acre (~KES 362,500/acre at KES 145/kg), but at Laikipia's 41/100 suitability a realistic target here is closer to 1,281 kg/acre (~KES 185,745/acre) unless the constraints above are addressed.

Better matched to Laikipia's soil: Sweet Potato, Finger Millet, and Groundnuts — each scores higher on the same soil.

41Suitability score

Soil & climate match

FactorLaikipia soilGarden Peas needsStatus
pH4.995.5–7Adjust
Nitrogen1.42 g/kgmin 0.5 g/kgOK
Phosphorus16.6 mg/kgmin 12 mg/kgOK
Potassium215 mg/kgmin 150 mg/kgOK
Rainfall600 mm800–2,100 mmLow
Altitude1,700 m1,500–2,600 mOK

Seed varieties for Laikipia

4 garden peas varieties are rated for Laikipia's altitude (1,700 m) and rainfall (600 mm):

Njabini (PI Moto super)· Highland 1500-2600mGreenwich· Highland 1600-2600mKWS Karioka· Highland 1600-2600mBlue Moon· Highland 1200-2400m
Full variety details — maturity, yield & breeder →

Economics

Market priceKES 145/kg
Expected yield in Laikipia1,281 kg/acre
Estimated revenueKES 185,745/acre
Adjusted for Laikipia's 41/100 suitability. Under ideal conditions Garden Peas can reach 2,500 kg/acre (~KES 362,500/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(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