What kind of soil are you using? Some soils all ready have nutes and you can wait a little longer to add anything at first. I haven't used the Alaska stuff, but I looked into it and asked questions on different boards and what I found is that folks use it in small doses slowly building up to full recommended strength, but only using every 2 feedings or so. You only really want to use it up until the first week of flower and then switch to a bloom nute, but I wouldn't recommend the Alaska bloom because it is high in traces of arsenic which many ferts are, but this one seems to be higher than others, but don't get me wrong many people still use it.
Adieu