Growing Pigeon Peas in Isiolo

Soil suitability analysis based on Isiolo's nutrient profile

Pigeon Peas can be grown in Isiolo County, but the soil scores 51/100 and needs targeted management to reach full potential. Local soils average pH 7.83 — alkaline and inside the 5–8 band Pigeon Peas prefers, so no lime is usually required. The main gap is nitrogen — measured at N 0.46 g/kg, P 37.4 mg/kg, K 395 mg/kg against this crop's low/low/low demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy soils suit Pigeon Peas, which favours sandy. Pigeon Peas's full potential is about 600 kg/acre (~KES 45,000/acre at KES 75/kg), but at Isiolo's 51/100 suitability a realistic target here is closer to 383 kg/acre (~KES 28,725/acre) unless the constraints above are addressed.