Growing Amaranth in Laikipia

Soil suitability analysis based on Laikipia's nutrient profile

Quick answer

Yes, with the right inputs — Laikipia is moderately suited to Amaranth. Laikipia's soil (pH 4.99, strongly acidic) gives Amaranth a suitability score of 68/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Laikipia County is a solid choice for Amaranth, with a soil-match score of 68/100. At an average pH of 4.99 the soil is strongly acidic, below Amaranth's preferred 5.5–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.42 g/kg), phosphorus (16.6 mg/kg) and potassium (215 mg/kg) all meet Amaranth's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Amaranth, which favours loam. On ShambaIQ's soil-match model, Amaranth is the #22 soil match of the 106 crops we assess for Laikipia County. Amaranth's full potential is about 5,000 kg/acre (~KES 200,000/acre at KES 40/kg), but at Laikipia's 68/100 suitability a realistic target here is closer to 4,250 kg/acre (~KES 170,000/acre) unless the constraints above are addressed.

68Suitability score

Soil & climate match

FactorLaikipia soilAmaranth needsStatus
pH4.995.5–7.5Adjust
Nitrogen1.42 g/kgmin 1.2 g/kgOK
Phosphorus16.6 mg/kgmin 12 mg/kgOK
Potassium215 mg/kgmin 150 mg/kgOK
Rainfall600 mm500–1,500 mmOK
Altitude1,700 m0–2,400 mOK

Planting calendar for Laikipia

Long Rains· April–JuneMain season here

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

Short Rains· October–December

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

Dry Season· February–April

February
Irrigation & Continuous Harvesting
March
Top Dressing every 3 weeks
April
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 Laikipia
1

Laikipia's nitrogen (1.42 g/kg) already meets Amaranth's 1.2 g/kg requirement, so this is a maintenance rate.

Seed varieties for Laikipia

7 amaranth varieties are rated for Laikipia's altitude (1,700 m) and rainfall (600 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 Laikipia4,250 kg/acre
Estimated revenueKES 170,000/acre
Adjusted for Laikipia's 68/100 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