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NPK
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===About NPK===
: [[NPK]] stands for [[Nitrogen|Nitrogen (N)]], [[Phosphorus|Phosphorous (P)]], [[Potassium|Potassium (K)]].
: [[NPK]] is generally made by [[Chemical Reaction|reacting]] [[Ammonia]] with [[Nitric Acid]], [[Chemical Reaction|reacting]] [[Ammonia]] with [[Phosphoric Acid]] and combining these in a [[mixture]] with [[Potassium Chloride]] which is mined from the ground.
Ammonia + Nitric Acid → Ammonium Nitrate