They call clumps slow release nitrogen. Just heard this today and thought it was funny. I have this small complex. Part of a larger one that got broken up over the years. The guys that do the piece next to me only cut every three weeks. Makes one pass and that's it, a clumpy mess. Today we both mowed at the same time (first time I've seen him in three years) and I went and asked him why he does that, and he gives me grin and says "it'll break down, that's slow release nitrogen". Any others?