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The FullStop makes soil solution monitoring easy; whenever a wetting front goes past, the FullStop automatically collects and stores a water sample.

Taking a soil water sample

If the indicator is in the up position, it means that more than 20 ml of water was collected by the FullStop. After irrigation, water will be wicked out of the funnel. However the last 5 ml of water cannot be wicked out because it is below the depth of the filter. This 5 ml sample is sufficient for nitrate and salt measurement.

The water sample can be extracted from the FullStop using the syringe via the 4 mm flexible tubing. The composition of the water captured in the FullStop can change over time, so it is advisable to take a sample soon after irrigation.

If you want a sample uncontaminated from a previous irrigation, it is necessary to empty the small amount of water retained in the base, using the syringe.

Salt and nutrient concentrations tend to be quite variable over short distances. Taking 5 ml from a number of FullStops and bulking the sample can reduce the time and cost of solution monitoring.

The sample should be taken as soon as possible after irrigation.

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Understanding Soil Water

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