PhieldteK
PhieldteK – Precision Agronomy
PhieldteK is the Precision Agronomy division of our business, offering a complete range of fully independent precision sampling services.
With over 150 years of connection to farming, we understand the fast pace of modern agriculture and provide a quick turnaround across all our services.



GPS Soil pH Sampling
Soil pH testing is what we do best. It’s our core service
Soil acidity plays a vital role in crop performance — affecting yield, nutrient availability, and the effectiveness of fertilisers.
Our in field 1 Ha pH testing is the most accurate way to understand what’s really happening in your fields. Unlike traditional lab testing — which relies on one mixed composite sample to represent a whole area (misleading).
Each reading is taken in field and logged using GPS, we can pick up even the smallest problem areas that a composite lab sample or a soil scanner would easily miss. The results are transferred onto a detailed field map, showing exactly where soil acidity levels change.
This gives you a clear, reliable picture of your soil’s actual condition.
Using quad bikes or walking tramlines, we divide each field into 1 Ha grids and log every pH sample with GPS software. This allows us to accurately map and identify any isolated areas of soil acidity. We use test tubes and soil indicator to provide a quick, reliable in field result — as recommended in RB209 for soils with variable pH
GPS Soil Sampling
Intensive soil sampling for Phosphate, Potash, Magnesium & Lime can be a very cost effective management tool for your farm. We operate this service for farmers and agronomists. Apart from the financial and environmental benefits, you can be confident that your fertiliser application is targeted and being spread exactly where the soil needs it.
The 4 year programme for nutrient management gives you the ability to plan ahead and budget for what your soil actually requires, NOT what it’s always been used to. Once the mapping is completed, we tailor your fertiliser prescriptions based around your cropping, yields, straw and manures to create the most efficient and effective fertiliser regime for your fields.
Our GPS mapping service lets you tailor sampling areas of any size (Eg 1Ha, 2ha, Soil Types) this flexibility gives you more precise insights and better control over how your fields are monitored and managed.
Routine Soil Sampling
Regular soil sampling is essential for understanding your soil’s health and ensuring fertiliser is used efficiently. Every field should be sampled at least every four years to monitor nutrient status and pH.
A basic laboratory test includes:
- Phosphorus (P)
- Potassium (K)
- Magnesium (Mg)
- Soil pH
Additional testing can cover:
- Secondary nutrients
- Trace elements
- Organic matter and texture
All results are available in multiple formats, making it easy to integrate with your farm management system.
PCN Sampling
To safeguard the potato crop it is necessary to carry out intensive soil sampling using the specified protocols. Generally, fields are sampled by dividing the field into 1 or 2 hectare grids. Typical practice means that 50+ sub samples of soil are collected from each grid. These are then combined to make up a composite sample of approximately 1 litre of soil.
At Phieldtek we are fully aware of the time and effort involved in collecting these samples, especially over large acreages. In an attempt to reduce the sampling time we have created an automated sampler solely for PCN sample collection. The biggest advantage from sampling with this new device is that the sample intensity is now even greater.