First of all I would just like to say this is a great thing! I don't know how many times I have seen the ad for this site and just overlooked it. Ok, on to the question, I have been applying gran. ferts'. for approx. three yrs. now with fair results, however I am interested in getting into more spraying. What my problem is, I am having a very difficult time finding out info. on spraying nitro. or any chemicals to green up grass in the spring. Some customers are wishing to see lush green grasss early or all year round with no irrigation system??? Hard to do here in NC transition zone. Any help would be great.