Growing Lemon in Mandera

Soil suitability analysis based on Mandera's nutrient profile

Mandera County is a challenging environment for Lemon (soil-match score 4/100) and will need significant amendment before planting. At an average pH of 8.38 the soil sits above Lemon's preferred 6–7.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.53 g/kg, P 38.3 mg/kg, K 420 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing that deficit. Lemon prefers loam soils, while Mandera is largely sandy, so drainage and organic-matter management matter more here. Mandera receives approximately 180 mm/year — well below Lemon's minimum of 600 mm — so supplemental irrigation would be essential for this crop. Lemon's full potential is about 10,000 kg/acre (~KES 500,000/acre at KES 50/kg), but at Mandera's 4/100 suitability a realistic target here is closer to 500 kg/acre (~KES 25,000/acre) unless the constraints above are addressed.

4Suitability score

Soil & climate match

FactorMandera soilLemon needsStatus
pH8.3867.5Adjust
Nitrogen0.53 g/kgmin 1.2 g/kgLow
Phosphorus38.3 mg/kgmin 20 mg/kgOK
Potassium420 mg/kgmin 200 mg/kgOK
Rainfall180 mm600–1,500 mmLow
Altitude250 m0–2,100 mOK

Planting calendar

Long Rains

Month 1
Transplanting & Basal
Month 2
Pruning & Top Dressing
Month 3
Flowering & Fruit Set

Short Rains

Month 1
Transplanting & Basal
Month 2
Pruning & Top Dressing
Month 3
Fruit Development

Top dressing guide

Product
CAN
Timing
Three times per year
Instruction
Split citrus feeding across the year. Foliar zinc and manganese keep leaves healthy.
Bags per Acre
0.6

Economics

Market priceKES 50/kg
Expected yield in Mandera500 kg/acre
Estimated revenueKES 25,000/acre
Adjusted for Mandera's 4/100 suitability. Under ideal conditions Lemon can reach 10,000 kg/acre (~KES 500,000/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