Answer for compared to ag lime, how long will PlotStart last if optimum amount is used?

With a recommended application of PlotStart up to 5 years. As plants use the calcium it will need to be supplemented or pH and calcium levels will return to sub par just as in a lime application. The more that is demanded the shorter the application works. PlotStart does have an advantage to a lime application as it is instantly available calcium to the food plot species, working up to 3X faster than lime.