Got some time? This one might take a while! A very big part of any IPM program is turfgrass nutrition and arguably the biggest part of turfgrass nutrition is nitrogen. Since starting out in the turf industry I have always struggled with how much nitrogen I needed to apply to keep my turf healthy. What even is healthy turf? Is this turf healthy? For me healthy turf is a playing surface that requires the least amount of inputs and money to achieve the desired playing conditions. To achieve healthy turf I start with the basics and work towards the more complicated stuff. There's not much point in focusing on the details if you don't have the major things in check. Obviously the major things you need to grow healthy turf are air, water and sunlight. After these things comes soil fertility or turfgrass nutrition. I have always felt that nitrogen was the biggest part of turf nutrition but I had no real way of easily knowing what the turf required. The other required plant nutrients w...