Two-row, direct loading potato harvesters have carved themselves a popular niche in the UK, Holland and France. But these harvesters have several potential drawbacks, the most obvious being the reliance on a trailer. This can make opening up a field and coping with short work difficult, as well as cause delays waiting for trailers. The Kverneland Non-Stop system claims to get around both these difficulties. To see how, we tested two Kverneland harvesters, the UN 2200 and UN 2400