| Hi, I'm new at orchids too. All I've heard of Ammonium Sulfate is that it's an artificial manuer, used to raised pH balance in soil. It has a quality to absorb water from it's surrounding. It's high in nitrogen from ammonia, I thought too much nitrogen would inhibit blooming..according to what I've read, I'm guessing it's pretty much a form of fertilizer, high in ammoniacal nitrogen,instead of nitrate nitrogen or urea. |