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April 25, 2010 / Malcolm Dalebö

Fertilizer: Sulphate of Ammonia

Sulphate of Ammonia is a quick acting inorganic nitrogen fertiliser to encourage leafy growth.
A rapid acting source of nitrogen which promotes above ground growth and rich green foliage. Sulphate of Ammonia is especially beneficial for crops such as brassicas, lettuce, spinach, rhubarb, leeks and onions. 
Sulphate of ammonia is sometimes known as ammonium sulphate or ammonium sulfate is an inorganic compound used as a fertiliser to supply nitrogen to plants. For those who enjoy chemistry it’s chemical symbol is (NH4)2SO4.
Sulphate of Ammonia is not considered to be used by organic growers.
  • An early feed gives flowering plants, shrubs and fruit a rapid boost. 
  • Newly planted fruits will get an immediate boost with a feed when planted.
  • Sulphate of Ammonia will quickly green up a tired lawn.
  • Use throughout the growing season, or until it is deemed wise to harden-off existing growth, ready for winter.
  • Apply evenly at the recommended rates, hoe or fork into the top surface of the soil, and if dry, water well for maximum benefits.
Notes


  • It is made by a commercial process that causes ammonia to react with suphuric acid. 
  • When added to water it becomes soluble and thus is readily taken up by the plants, with effects being noticed in under 10 days.
  • Approximately 83% (as of 2003) of the world’s ammonia is used as fertilizers either as its salts or as solutions.
  • Consuming more than 1% of all man-made power, the production of ammonia is a significant component of the world energy budget.
  • Ammonia is directly or indirectly the precursor to most nitrogen-containing compounds. Virtually all synthetic nitrogen compounds are derived from ammonia. 
  • As nitrogen is the principal mineral of plant growth, it can be seen that we are highly dependant on this element for survival of our civilisation.

NPK 20-0-0
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