Deng. I didn't know it can be THAT complicated. LoL, I just follow the directions on the fertilizer bottle, and it works with me pretty good.

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"No drug, not even alcohol, causes the fundamental ills of society. If we're looking for the source of our troubles, we shouldn't test people for drugs, we should test them for stupidity, ignorance, greed and love of power" P. J. O'Rourke