It was good to see an admission from Ravensdown CEO Greg Campbell on Stuff a few days ago (Gerard Hutching, Feb 05) that too much nitrogen fertiliser is being used on many farms, and that more efficient products are needed and under development. Credit where credit is due. Take note Doug Edmeades. It will be interesting to see the cost premium put on these. Meanwhile, ONEsystem (wetted, urease-inhibitor treated prilled urea, twice as efficient as granular urea in Canterbury trials), is already here, greatly reducing environmental losses and farmer N requirements and REDUCING COSTS at the same time. What’s not to like? It would be good to discuss options for the the wider uptake of this technology with Ravensdown. I’ll bet a Speights or 3 that ONEsystem will beat any product they are developing hands down on cost-effectiveness to the farmer and on environmental benefits. I always said when I developed SustaiN in 2002 (rubbished for 10 years by the industry and now Ballance’s biggest-selling N fert by far, forcing Greg’s bunch to follow with copycat N-Protect), that it was a good start, but only a start. ONEsystem is the end-game. Trust me.