GPS Grid PCN Sampling Service

PCN Sampling

Agri-tech's unique PCN Service ensures the most robust sampling techniques are used with an automated sampler, guaranteeing consistency to the sampling depth.

Features

Depending on the perceived PCN levels, we offer three different sampling regimes all based on GPS grid sampling. The same 50 cores of soil will be taken from 1 hectare, two or four. The distances between each sample are laid out below:

The service includes:

• Automated sampler giving consistency to depth of sampling
• GPS map of field indicating block reference numbers and areas
• GPS map of field showing sample points and route taken for sampling
• Tramline and irrigation lane layout displayed on maps for irrigation and field planning
• Sampling grid(s) created around your A-B line
• All maps transferable to your Gatekeeper Mapping software

The Benefits:

• Whole field covered - much higher accuracy then traditional W pattern sampling
• Flexible sampling regime depending on perceived PCN problem
• Automated sampler giving consistency to sampling regime and depth of sampling
• Tracking device indicates route of bike and sample points
• Large soil sample taken - can be used for nutrient analysis if required
• Minimum of 49 cores taken per ha / sample
• Can be tailored to fit your budget

Analysis:

• Anglian Soil Analysis / RAA (Richard Austin Associates) (or chosen lab for analysis if preferred)
• Soil diluted on water - PCN eggs float to surface
• Dilution sieved and nematodes placed under microscope
• Count done manually - if cysts are found, then the process is repeated to determine egg count

Interpretation:

• Should be used as a guide
• If eggs are found further sub-sampling may be required to get a more accurate picture of the problem
• Seek recommendations from potato agronomist for appropriate nematicide and course of action