Growing Sisal in Wajir

Soil suitability analysis based on Wajir's nutrient profile

Quick answer

Possible but challenging — Wajir is only marginally suited to Sisal. Wajir's soil (pH 8.4, alkaline) gives Sisal a suitability score of 41/100. Match fertilizer to Wajir's nitrogen and phosphorus levels for the best result.

Wajir County is a challenging environment for Sisal (soil-match score 41/100) and will need significant amendment before planting. Local soils average pH 8.4 — alkaline and inside the 5.5–8.5 band Sisal prefers, so no lime is usually required. Nitrogen (0.52 g/kg), phosphorus (39.3 mg/kg) and potassium (396 mg/kg) all meet Sisal's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy soils suit Sisal, which favours sandy. On ShambaIQ's soil-match model, Sisal is the single best-matched crop of the 106 we assess for Wajir County. Sisal's full potential is about 1,000 kg/acre (~KES 90,000/acre at KES 90/kg), but at Wajir's 41/100 suitability a realistic target here is closer to 513 kg/acre (~KES 46,170/acre) unless the constraints above are addressed.

41Suitability score

Soil & climate match

FactorWajir soilSisal needsStatus
pH8.45.58.5OK
Nitrogen0.52 g/kgmin 0.5 g/kgOK
Phosphorus39.3 mg/kgmin 6 mg/kgOK
Potassium396 mg/kgmin 100 mg/kgOK
Rainfall200 mm250–700 mmLow
Altitude250 m0–1,800 mOK

Top dressing guide

Product
None
Timing
None required
Instruction
Sisal is extremely low-input. No fertilizer top dressing needed.
Bags per Acre
0

Recommended seed varieties

Hybrid 11648Dryland/Coastal
KALRO · 730-1000 days · 400–600 kg/acre
High fibre yield; resistant to zebra disease.

Economics

Market priceKES 90/kg
Expected yield in Wajir513 kg/acre
Estimated revenueKES 46,170/acre
Adjusted for Wajir's 41/100 suitability. Under ideal conditions Sisal can reach 1,000 kg/acre (~KES 90,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureSandy

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