Growing Quinoa in Homa Bay

Soil suitability analysis based on Homa Bay's nutrient profile

Quick answer

Generally not ideal — Homa Bay is poorly suited to Quinoa. Homa Bay's soil (pH 5.27, strongly acidic) gives Quinoa a suitability score of 31/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Homa Bay County is a challenging environment for Quinoa (soil-match score 31/100) and will need significant amendment before planting. At an average pH of 5.27 the soil is moderately acidic, below Quinoa's preferred 6–8.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is potassium — measured at N 1.05 g/kg, P 13.8 mg/kg, K 147 mg/kg against this crop's medium/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly clay loam soils suit Quinoa, which favours loam. On ShambaIQ's soil-match model, Quinoa is the #100 soil match of the 106 crops we assess for Homa Bay County. Quinoa's full potential is about 700 kg/acre (~KES 105,000/acre at KES 150/kg), but at Homa Bay's 31/100 suitability a realistic target here is closer to 271 kg/acre (~KES 40,650/acre) unless the constraints above are addressed.

Better matched to Homa Bay's soil: Macadamia, Avocado, and Pineapple — each scores higher on the same soil.

31Suitability score

Soil & climate match

FactorHoma Bay soilQuinoa needsStatus
pH5.2768.5Adjust
Nitrogen1.05 g/kgmin 0.8 g/kgOK
Phosphorus13.8 mg/kgmin 12 mg/kgOK
Potassium147 mg/kgmin 150 mg/kgLow
Rainfall1,100 mm300–800 mmHigh
Altitude1,200 m1,500–3,000 mLow

Planting calendar for Homa Bay

Long Rains· MarchMayMain season here

March
Land Prep & Sowing & Basal
April
Thinning & Top Dressing
May
Grain Fill & Harvest

Short Rains· SeptemberNovember

September
Land Prep & Sowing & Basal
October
Thinning & Top Dressing
November
Grain Fill & Harvest

Top dressing guide

Product
CAN
Timing
Week 4 to 6
Instruction
Top-dress at branching. Moderate nitrogen; excess causes lodging.
Bags per acre in Homa Bay
0.250.3

Homa Bay's nitrogen (1.05 g/kg) already meets Quinoa's 0.8 g/kg requirement, so this is a maintenance rate.

Economics

Market priceKES 150/kg
Expected yield in Homa Bay271 kg/acre
Estimated revenueKES 40,650/acre
Adjusted for Homa Bay's 31/100 suitability. Under ideal conditions Quinoa can reach 700 kg/acre (~KES 105,000/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(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