Liquid nitrogen (N) has seen a resurgence in popularity recently. At the Teagasc malting barley conference, Richie Hackett busted some of the myths around its use and gave solid advice for those considering a change. The first thing made very clear was that “it’s not a foliar fertiliser, it’s a soil-acting fertiliser”. Richie explained that the objective is to get N into the soil so that the plants can get it from the soil. As a result, it needs to be applied in large droplets that will bounce off the leaf, so a change of nozzle or a move to streamers is needed on a sprayer.