Is Murang'a good for growing African Nightshade?

Murang'a County scores 66/100 for African Nightshade suitability (good). Soil pH is 5.03 against a preferred 5.5–7.5, nitrogen 1.2 g/kg and phosphorus 12.2 mg/kg. County rainfall is 1200 mm/year against African Nightshade's 800–1500 mm range. This is a workable match for African Nightshade.

What fertilizer is best for African Nightshade in Murang'a?

Base the plan on Murang'a's soil: pH 5.03 (apply lime to reach 5.5–7.5), nitrogen 1.2 g/kg and phosphorus 12.2 mg/kg. Get an exact bag-per-acre basal and top-dressing schedule free at https://shambaiq.com/app.

What soil pH does African Nightshade need, and does Murang'a have it?

African Nightshade grows best at pH 5.5–7.5. Murang'a averages pH 5.03, which is outside the ideal range and may need lime or sulphur.

How much can I earn from African Nightshade per acre in Murang'a?

At roughly KES 50/kg and an expected 5,000 kg/acre, gross revenue is about KES 250,000 per acre before input costs. Use the ShambaIQ budget tool for a net figure based on your fertilizer plan.

Growing African Nightshade in Murang'a

Soil suitability analysis based on Murang'a's nutrient profile

Quick answer

Yes, with the right inputs — Murang'a is moderately suited to African Nightshade. Murang'a's soil (pH 5.03, strongly acidic) gives African Nightshade a suitability score of 66/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Murang'a County is a solid choice for African Nightshade, with a soil-match score of 66/100. At an average pH of 5.03 the soil is moderately acidic, below African Nightshade's preferred 5.5–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.2 g/kg), phosphorus (12.2 mg/kg) and potassium (168 mg/kg) all meet African Nightshade's requirements, so a maintenance fertilizer programme is enough. African Nightshade prefers loam soils, while Murang'a is largely clay, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, African Nightshade is the #39 soil match of the 106 crops we assess for Murang'a County. African Nightshade's full potential is about 5,000 kg/acre (~KES 250,000/acre at KES 50/kg), but at Murang'a's 66/100 suitability a realistic target here is closer to 4,125 kg/acre (~KES 206,250/acre) unless the constraints above are addressed.

Suitability score

Soil & climate match

Factor	Murang'a soil	African Nightshade needs	Status
pH	5.03	5.5–7.5	Adjust
Nitrogen	1.2 g/kg	min 1.2 g/kg	OK
Phosphorus	12.2 mg/kg	min 12 mg/kg	OK
Potassium	168 mg/kg	min 150 mg/kg	OK
Rainfall	1,200 mm	800–1,500 mm	OK
Altitude	1,500 m	1,000–2,200 m	OK

Planting calendar for Murang'a

Long Rains· March–MayMain season here

March

Transplanting & Basal Fertilizer (DAP)

April

First Harvest (leaf picking) & Top Dressing

May

Continuous Leaf Harvest

Short Rains· October–December

October

Transplanting & Basal Fertilizer

November

Weeding & Pest Control

December

Harvesting & Market

Dry Season· January–March

January

Irrigation & Continuous Harvesting

February

Top Dressing (CAN) every 2 weeks

March

Replanting if stand is old

Top dressing guide

Product

CAN

Timing

Week 2-3 after transplanting

Instruction

Top dress 2-3 weeks after transplanting and after each picking to push tender leaf regrowth

Bags per acre in Murang'a

Murang'a's nitrogen (1.2 g/kg) already meets African Nightshade's 1.2 g/kg requirement, so this is a maintenance rate.

Seed varieties for Murang'a

Varieties suited to Murang'a's 1,500 m altitude and 1,200 mm annual rainfall — 3 of 3 african nightshade varieties we list.

Managu KALROMedium/Highland

KALRO · 30-45 days · 2.5–4 tons/acre

Indigenous leafy vegetable; high iron and vitamin A; multiple harvests; very popular in Western Kenya.

Giant NightshadeMedium/Highland

Simlaw Seeds · 35-50 days · 2.8–4.3 tons/acre

Large-leaved selection; soft palatable leaves; high market demand.

OlevolosiMedium

KALRO · 30-45 days · 2.3–3.8 tons/acre

Broad-leaf type; slow bolting; continuous picking; drought tolerant.

Economics

Market priceKES 50/kg

Expected yield in Murang'a4,125 kg/acre

Estimated revenueKES 206,250/acre

Adjusted for Murang'a's 66/100 suitability. Under ideal conditions African Nightshade can reach 5,000 kg/acre (~KES 250,000/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

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