The plant can only uptake .1 lbs of nitrogen through the foliar process. Everything elapse is taken up via the roots. If I am wrong on this someone please correct me. AMS had a higher salt content per nutrient value vs urea. I use AMS as an addendum with my UFLEXX and UMAXX because I have soils that are on the high end of the ph scale. I do not use it in the summer when it is hot. I then use a combination of Urea Triazone and my U fertilizers. If you don't have irrigation you need to dilute the fertilizer and apply less.
Mike's Total Lawn Care
I love my country, but mistrust my government, and the government doesn't create jobs, it just takes my money and gives it to other people or groups it thinks it can bribe.