A conventional precision drill places seed in a single row, line astern. The DeltaRow concept puts the seeds in two offset sub-rows spaced 125mm apart, and staggers those sub-rows. The aim of this (literally) lateral thinking is to give each seed up to 70% more soil area to exploit, potentially providing more room for root growth, increased nutrient uptake and then, better light interception. Fertiliser can be placed in a band under the seed. To see if the concept delivers tangible benefits in practice, we drilled maize with an eight-row, 5.6m Azurit 9/8.75 KD behind Lemken’s semi-mounted Solitair 25/600 KA hopper unit; its sole job was to supply and meter fertiliser. We’ll start with fertiliser and its placement.