Growing Lemon in Tana River

Soil suitability analysis based on Tana River's nutrient profile

Tana River County is a challenging environment for Lemon (soil-match score 32/100) and will need significant amendment before planting. Local soils average pH 6.4 — slightly acidic to near-neutral and inside the 6–7.5 band Lemon prefers, so no lime is usually required. The main gap is nitrogen, phosphorus, and potassium — measured at N 1.04 g/kg, P 8.5 mg/kg, K 108 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. Lemon prefers loam soils, while Tana River is largely sandy, so drainage and organic-matter management matter more here. Tana River receives approximately 400 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 Tana River's 32/100 suitability a realistic target here is closer to 4,000 kg/acre (~KES 200,000/acre) unless the constraints above are addressed.

32Suitability score

Soil & climate match

FactorTana River soilLemon needsStatus
pH6.467.5OK
Nitrogen1.04 g/kgmin 1.2 g/kgLow
Phosphorus8.5 mg/kgmin 20 mg/kgLow
Potassium108 mg/kgmin 200 mg/kgLow
Rainfall400 mm600–1,500 mmLow
Altitude200 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 Tana River4,000 kg/acre
Estimated revenueKES 200,000/acre
Adjusted for Tana River's 32/100 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