Here's a small snipet from the aforementioed article...
"The true advantage that late-season fertilization provides to turfgrass root growth is realized during the following spring. It has been shown that the root growth of turf fertilized during the late-winter/early spring declines soon after nitrogen application (3 & 5). Conversely, turf fertilized using the late- season concept becomes green early and rapidly, without the need for an early spring nitrogen application, and root growth continues at a maximum rate. It appears that the excessive shoot growth encouraged by early spring nitrogen applications utilizes carbohydrates that may otherwise be used for growing roots."
Now that I know that clay's texture(platelets) has nothing to do with water infiltration, percolation, or drainage,,, I wonder what does...