Ammonium sulfate, ammonium sulfate.

Crystal nitrogen - sulfur fertilizer, contains 21 nitrogen in ammonium form, does not slezhivatsya. Ammonium sulfate - one of shirokoprimenyaemy fertilizers in agriculture. It is used under all crops (from potatoes to citrus) on chernozems and gray soils. Ammonium nitrogen of ammonium sulfate is acquired by plants. Sulfur is necessary for food of all cultures as it is part of some essential amino acids synthesized by plants.