Growing Macadamia in Kisii

Soil suitability analysis based on Kisii's nutrient profile

Quick answer

Yes — Kisii is well suited to Macadamia. Kisii's soil (pH 5.21, strongly acidic) gives Macadamia a suitability score of 90/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Kisii County is well suited to Macadamia, scoring 90/100 on ShambaIQ's soil-match model. Local soils average pH 5.21 — moderately acidic and inside the 4.5–6.5 band Macadamia prefers, so no lime is usually required. Nitrogen (1.09 g/kg), phosphorus (13.1 mg/kg) and potassium (151 mg/kg) all meet Macadamia's requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Macadamia, which favours loam. On ShambaIQ's soil-match model, Macadamia is the #2 soil match of the 106 crops we assess for Kisii County. At current prices (about KES 110/kg) and a typical 1,800 kg/acre yield, a well-managed Macadamia crop here can gross roughly KES 198,000 per acre.

90Suitability score

Soil & climate match

FactorKisii soilMacadamia needsStatus
pH5.214.56.5OK
Nitrogen1.09 g/kgmin 0.8 g/kgOK
Phosphorus13.1 mg/kgmin 12 mg/kgOK
Potassium151 mg/kgmin 150 mg/kgOK
Rainfall1,500 mm700–1,500 mmOK
Altitude1,700 m900–2,100 mOK

Planting calendar

Long Rains

Month 1
Fertilizer (NPK) & Weed Control
Month 2
Flower & Nut-set Monitoring
Month 3
Stink Bug Scouting & Pruning

Short Rains

Month 1
Nut Development & Top Dressing
Month 2
Pest Control (nut borer)
Month 3
Harvest Mature Nut Fall

Dry Season

Month 1
Harvest & Dehusking
Month 2
Irrigation & Mulching
Month 3
Formative & Sanitation Pruning

Top dressing guide

Product
CAN
Timing
Start of rains (biannual)
Instruction
Apply in ring around drip line. Young trees need less.
Bags per Acre
0.5

Recommended seed varieties

KRG 15Medium/Highland
KALRO · 1000-1500 days · 2.7–4.5 tons/acre
High nut recovery; suited to central highlands.
Embu 1Medium/Highland
KALRO · 1000-1500 days · 2.3–4.0 tons/acre
Good kernel quality; moderate yield.
EMB-3Medium/Highland
KALRO-Thika · 1400-1550 days · 3.1–5.0 tons/acre
High first-grade nut ratio; good kernel recovery; KEPHIS certified; suited to Central Kenya highlands.

Economics

Market priceKES 110/kg
Expected yield 1,800 kg/acre
Estimated revenueKES 198,000/acre

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