From: Johan Smit ("smit.js") To: SOWACS@aqua.ccwr.ac.za Date: Saturday, June 29, 1996 2:49 pm Subject: RE: Byron Irvine Byron wrote: >In short "Sensors must be used to be useful". The high cost ofsensors, >our relatively low water costs and lower value crops make sensoruse in >the Praires of Canada a non starter at this time. Yes Byron, but sensor system vendors can prove to you that the investment can be covered in one season from the savings in fertiliser. Regards Johan Smit