Artificial fertilizers are those mathematical product that apply chemical substance compounds to synthetically mimic natural minerals and element found in the soil for optimum plant growing . Synthetic fertilizer be given to have higher and faster do doses than the like compound found by nature hap in grunge or organic fertilizers so they are used sparingly according to recommended doses . Artificial fertilizers fare in a range of form from liquids , to water soluble granules to deadening - discharge coated granules . All hokey fertilizers are sell with a three - telephone number guaranteed analysis ( such as 10 - 10 - 10 ) that represents the amount of atomic number 7 , phosphorus and potassium respectively .
Fast-Acting Fertilizer
This is the most uncouth human body of contrived fertilizer and is produced in a broad reach of formulations and forte blends such as those for yield trees , indoor plant , flowering works , palms , lawn supergrass and superman - love works . It typically comes in mealy or crystalline form that is dissolve by water and is deposited on top of the dirt or into the planting soil and then water in . These typically require regular or repeated applications throughout the growing season . An example of this type of fertilizer is MiracleGro .
Slow-Release Fertilizers
tedious - release fertilizers are similar formulation to tight - play fertilizers but the active constituent are manufacture with coatings that do not disband immediately upon contact with water . dense - release fertiliser cheapen step by step over a period of three to six months . They also prevent plants from being burned chemically by tight - acting fertilizers , which also makes them attractive formulas . An example of this type of synthetic formulation is Osmacote .
Gaseous Fertilizer
Used in the main in commercial-grade agriculture gas fertilizer also exist . The most wide used is anhydrous ammonium hydroxide , which is keep on in entrepot as a press liquid under pressure but turn to a gasoline when discharge from force per unit area . It tie up with moisture in the grime to take shape ions that adhere in the soil . Anhydrous ammonia is the most N - rich fertilizer on the market .
