Growing Amaranth in Busia

Soil suitability analysis based on Busia's nutrient profile

Quick answer

Yes, with the right inputs — Busia is moderately suited to Amaranth. Busia's soil (pH 5.29, strongly acidic) gives Amaranth a suitability score of 70/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Busia County is a solid choice for Amaranth, with a soil-match score of 70/100. At an average pH of 5.29 the soil is moderately acidic, below Amaranth's preferred 5.5–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is nitrogen — measured at N 0.91 g/kg, P 16.6 mg/kg, K 175 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly clay loam soils suit Amaranth, which favours loam. On ShambaIQ's soil-match model, Amaranth is the #32 soil match of the 106 crops we assess for Busia County. Amaranth's full potential is about 5,000 kg/acre (~KES 200,000/acre at KES 40/kg), but at Busia's 70/100 suitability a realistic target here is closer to 4,375 kg/acre (~KES 175,000/acre) unless the constraints above are addressed.

70Suitability score

Soil & climate match

FactorBusia soilAmaranth needsStatus
pH5.295.5–7.5Adjust
Nitrogen0.91 g/kgmin 1.2 g/kgLow
Phosphorus16.6 mg/kgmin 12 mg/kgOK
Potassium175 mg/kgmin 150 mg/kgOK
Rainfall1,400 mm500–1,500 mmOK
Altitude1,200 m0–2,400 mOK

Planting calendar for Busia

Long Rains· March–MayMain season here

March
Sowing or Transplanting & CAN Basal
April
Thinning & 1st Top Dressing
May
Continuous Leaf Harvest

Short Rains· September–November

September
Sowing & Basal Fertilizer
October
Weeding & Top Dressing
November
Harvesting & Seed Saving

Dry Season· January–March

January
Irrigation & Continuous Harvesting
February
Top Dressing every 3 weeks
March
Replanting if stand exhausted

Top dressing guide

Product
CAN
Timing
Week 2-3 after thinning
Instruction
Top dress after thinning and again after each major leaf harvest to sustain tender regrowth
Bags per acre in Busia
1.251

Busia's nitrogen (0.91 g/kg) is 76% of the 1.2 g/kg Amaranth needs, so the standard 1 bag/acre is raised to 1.25. Split it across two applications to limit leaching.

Seed varieties for Busia

7 amaranth varieties are rated for Busia's altitude (1,200 m) and rainfall (1,400 mm):

Terere KALRO· Medium/HighlandAmaranthus Cruentus· MediumGrain Amaranth (Hypochondriacus)· Medium/HighlandKAT Gold (KAM 114)· Lowland to Highland 20-2400mTerere Smart· Lowland to Highland 20-2400mKK Livokoyi (AM 38)· Lowland to Highland 250-2000mKK Mrambi (Ex-Zim)· Lowland to Highland 250-2000m
Full variety details — maturity, yield & breeder →

Economics

Market priceKES 40/kg
Expected yield in Busia4,375 kg/acre
Estimated revenueKES 175,000/acre
Adjusted for Busia's 70/100 suitability. Under ideal conditions Amaranth can reach 5,000 kg/acre (~KES 200,000/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