It's common to have a thin lawn at the end of summer just before fall starts. If your lawn has thinned out then this 3-week fix may be right up your alley. You can get this job done in a single day and have the best looking lawn on the block in no time.
You can pickup basic ammonium sulphate in just about any store locally for a great price and brand hardly matters. If you'd like to buy online though then the Anderson's Company has a good ammonium sulphate and urea based fertilizer that also contains phosphorus, potassium, iron, and other minors that will help your lawn do even better than Nitrogen alone.
