Vinnie is this the second or third year for the vines? I ask because if it is really 0.05 pounds of each per 100 square feet you probably don't need to add anything at this point. That converts out to less than 22 pounds per acre, which is negligible. If the grapes will be bearing this year, then maybe you could try a bit on them but it will be very hard not to over apply and make them too vigorous.