1st time grower here. Can you cause nute burn w/dry nutes? Thinking that autos need more N during the growth stage, I added a couple teaspoons of 13-7-7 fert to some FFOF, in a 2gl pot. i sprinkled 2tsp & mixed it in the bottom 3rd of pot, then filled the rest 2/3rds with straight ffof. how...