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Capability 03 · Fertilizer

Feed your soil
what it lacks.
Not what the bag says.

Every bag of fertilizer says it improves yield. Your soil data says whether you actually need it — and how much. Soil sensors measure pH, moisture and NPK so you fertilize with precision, not assumption.

The process

How fertilizer optimisation works

Fertilizer waste comes from applying the wrong thing at the wrong time. Soil sensors make both decisions data-driven.

01
Continuous soil health sensing

Soil sensors measure pH and moisture continuously, 24/7. Soil pH determines nutrient availability — even if NPK levels are adequate, the wrong pH means plants can't absorb them.

02
Periodic NPK assessment

NPK (nitrogen, phosphorus, potassium) cannot be measured continuously — the sensor takes periodic readings at defined intervals. Each assessment tells you exactly what nutrient balance your soil has at that moment.

03
Crop-stage analysis

Our platform compares your readings to crop-specific nutrient demand curves. A potato at tuber initiation needs different nutrients to one at vegetative growth. Recommendations are calibrated accordingly.

04
Product and rate recommendation

You receive a specific message: which fertilizer product to apply, at what rate per hectare, and — based on soil moisture — whether soil conditions are right for application or if you should wait for rain.

What we measure

Four soil parameters. Complete fertilizer picture.

Each measurement answers a different fertilizer question — and together they eliminate both under-application and over-application.

Soil pH

The master variable of nutrient availability. At pH below 5.5, phosphorus becomes locked in the soil regardless of how much you apply. Continuous monitoring.

Optimal for most crops6.0 – 7.0
Below threshold → lime recommendation<5.5
Soil Moisture

Dry soil blocks nutrient movement. Fertilizer applied to soil below 30% moisture fails to dissolve and reach roots. Moisture data tells you whether to apply now or wait. Continuous monitoring.

Safe to fertilize35 – 75%
Too dry — wait for rain<30%
NPK Levels

Nitrogen (N), phosphorus (P) and potassium (K) are the three primary macronutrients. Periodic assessment shows the actual balance in your soil — not what you applied last season. Assessment-based measurement.

Measurement typePeriodic assessment
OutputApply / Skip / Rate
Why it matters

Fertilizer is often the biggest farm input cost

Most farmers apply the same basal fertilizer rate every season regardless of what the soil actually contains. That leads to over-applying N while P or K are critically deficient — spending more and getting less.

Cut fertilizer spend by up to 25%

Applying only what the soil actually lacks eliminates the 20–30% of fertilizer routinely wasted on nutrients already present in adequate quantities.

Fix pH before applying expensive nutrients

Acidic soils (common in Central Kenya highlands after heavy rainfall) lock phosphorus out of plant reach. Liming first and fertilizing second prevents the most common cause of fertilizer failure.

Apply at the right soil moisture

Fertilizer applied to excessively dry or waterlogged soil underperforms. Moisture sensors tell you the optimal application window so every kg of product reaches roots.

Crops & applications

Precision nutrition for Kenya's key crops

🌽
Maize — basal and top-dress decisions

Maize has two critical fertilizer windows: basal at planting (P+K) and nitrogen top-dressing at V6 (knee-high). Sensors tell you which nutrients are actually needed at each stage and whether soil moisture supports application.

Stage-specific timing
🥔
Potatoes — pH and potassium for tuber quality

Potato yield and quality are particularly sensitive to potassium deficiency and soil pH. Farmers in highland Kenya routinely under-apply K while over-applying nitrogen — sensors reverse the imbalance.

Quality-critical nutrients
🌿
Hydroponics — real-time nutrient dosing

In hydroponic systems, soil sensors in the growing media provide continuous EC (electrical conductivity) and pH data — enabling precise nutrient solution management for lettuce, herbs and leafy greens.

Continuous EC monitoring
Start saving on fertilizer

Know what your soil needs before you buy

A soil sensor in your field gives you pH and moisture data continuously — and periodic NPK assessments tell you exactly which nutrients to apply and which to skip. Stop spending on what's already there.

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