Growing Oats in Tana River

Soil suitability analysis based on Tana River's nutrient profile

Tana River County is a challenging environment for Oats (soil-match score 1/100) and will need significant amendment before planting. Local soils average pH 6.4 — slightly acidic to near-neutral and inside the 5.5–7 band Oats prefers, so no lime is usually required. The main gap is phosphorus and potassium — measured at N 1.04 g/kg, P 8.5 mg/kg, K 108 mg/kg against this crop's medium/medium/medium demand — so the fertilizer plan below prioritises closing those deficits. Oats prefers loam soils, while Tana River is largely sandy, so drainage and organic-matter management matter more here. At 200 m, the county sits below Oats's preferred altitude range (1800–3000 m), which limits yield potential due to heat stress. Oats's full potential is about 1,600 kg/acre (~KES 64,000/acre at KES 40/kg), but at Tana River's 1/100 suitability a realistic target here is closer to 20 kg/acre (~KES 800/acre) unless the constraints above are addressed.

1Suitability score

Soil & climate match

FactorTana River soilOats needsStatus
pH6.45.57OK
Nitrogen1.04 g/kgmin 0.8 g/kgOK
Phosphorus8.5 mg/kgmin 12 mg/kgLow
Potassium108 mg/kgmin 150 mg/kgLow
Rainfall400 mm500–1,000 mmLow
Altitude200 m1,800–3,000 mLow

Planting calendar

Long Rains

Month 1
Land Prep & Sowing & Basal
Month 2
Tillering & Top Dressing
Month 3
Heading & Harvest

Short Rains

Month 1
Land Prep & Sowing & Basal
Month 2
Tillering & Top Dressing
Month 3
Heading & Harvest

Top dressing guide

Product
CAN
Timing
Week 4 to 5 at tillering
Instruction
Top-dress at tillering for grain and biomass. Split if grown for grain and fodder.
Bags per Acre
0.5

Economics

Market priceKES 40/kg
Expected yield in Tana River20 kg/acre
Estimated revenueKES 800/acre
Adjusted for Tana River's 1/100 suitability. Under ideal conditions Oats can reach 1,600 kg/acre (~KES 64,000/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