Digital, mobile test kit for the easy optimisation of the lateral distribution Instead of testing trays, such as those found in the normal mobile test kit, the EasyCheck system consists of just 16 lightweight test mats made from rubber and the EasyCheck App for Smartphones. The test mats are positioned in pre-determined distances away from the tramline. Then the relevant tramlines are spread and the mats with the fertiliser granules laying on them are photographed via Smartphone. The App now compares automatically how much fertiliser has been collected on each test mat and sets the results of the individual rows to an average. In cases where the spreading results are not the optimum, the App suggests readjustments for the setting of the relevant fertiliser spreader. For further information please see the EasyCheck instruction manual. You can download the App here. Supplement: Preferred implements for photo analysis for EasyCheck.