Kirinyaga county soil health report

Central Highlands agroecological zone

Soil baseline: ShambaIQ Regional Model · County average

69Soil health

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Soil suitability and agriculture in Kirinyaga County

Choosing the right inputs in Kirinyaga County starts with its soil chemistry. Sitting in the Central Highlands zone, Kirinyaga records an average soil pH of 5.31strongly acidic. At this acidity, phosphorus and several nutrients get locked in the soil, so liming before planting is one of the highest-return moves a Kirinyaga farmer can make.

On nutrients, Kirinyaga soils measure nitrogen at 1.36 g/kg, extractable phosphorus at 12.5 mg/kg and potassium at 177 mg/kg. A basal DAP or NPK dressing at planting followed by CAN top-dressing is the usual backbone, but the exact blend and bag-per-acre rate should be tuned to these figures and your target crop. On current data, Kirinyaga soils score highest for Tea. Get a free, Kirinyaga-specific fertilizer plan for your exact farm below.

Nutrient breakdown

pH
5.31 Acidic
Total nitrogen
1.36 g/kgAdequate
Extractable phosphorus
12.5 mg/kgModerate
Extractable potassium
177 mg/kgModerate
Organic carbon
22.2 g/kgAdequate

Best crops for Kirinyaga

Scored against Kirinyaga's soil nutrients

Wards in Kirinyaga

20 wards across 5 sub-counties — tap to expand

Kirinyaga Central4 wards
Kirinyaga East5 wards
Kirinyaga North/Mwea West4 wards
Kirinyaga South4 wards
Kirinyaga West3 wards

Neighboring counties

Agrovets in Kirinyaga

UKULIMA AGROVET
Kerugoya

Frequently asked questions

What is the soil pH in Kirinyaga County?

Kirinyaga County has an average soil pH of 5.31 (strongly acidic). Lime application is strongly recommended before planting most crops to unlock phosphorus availability.

What crops grow best in Kirinyaga County?

Based on precision soil mapping data, Kirinyaga soils have nitrogen at 1.36 g/kg and phosphorus at 12.5 mg/kg. Get a full ranked crop suitability list for your farm →

What fertilizer should I use in Kirinyaga?

Fertilizer choice depends on your target crop and exact soil conditions. Farms in the Central Highlands zone typically benefit from DAP or NPK compound at planting, followed by CAN top-dressing. Get a precise budget and bag-per-acre plan →

Embed Kirinyaga soil data on your website

Are you a local blogger, news agency, or county advisor? You can embed this live, 30m resolution soil suitability report card on your website for free.

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