Need advice for alternative food

Hey guys... I'm having a hard time feeding my girls this year as it has been a very wet summer so far (already lost 5 girls due to water) Every year I use DNF line of food but the the problem with that is it has to be mixed with water and the ground is already saturated with water... It's now the first week of July and other than the small feed I gave them when I planted them they haven't had anything. We just had the first 3 straight days of sun all summer so I went and checked this morning and the ground is still extremely wet. My buddy is using Miracle Grow shake and feed slow release and his seem to be doing considerably better than mine (same strains) so I was wondering if I should just go with that or is there another product that would be better? Any advice would be greatly appreciated!

Simulate everything your friend is doing - you all ready have the same strains... go for it! Don't over use the Miricle grow so the plants don't get burned...