fertilize for bigger buds

[jonster]

my plants are going to be grown in the ground with good natural soil, unfortunately theirs a high watertable so i have to grow in raised beds/mounds with sunshine gro mix that contains long-term time release fertilizers. It's all that I have, is it worth using and potentially cause problems like burning or should I buy some organic? Whats the best fertlizing method, is 20-20-20 fert good for veg. then 10-20-20 for flowering. I'm starting clones in a week, will they be good for sunshine gro mix ( I'm not using alot per each plant , something like 4-5 inches high for soil conservation ). What's the exact weeks into vegetation and flowering that I should start then change fertlizers for clones if i'm living in B.C.