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Obj. 6.02

Obj. 6.02. List the different types of fertilizers & the advantages & disadvantages of each. Types of fertilizers:. Complete or Incomplete. Complete – has all 3 primary nutrients (N, P, K) Ex. 10-10-10, 15-30-15. Incomplete – is missing one or more of the primary nutrients

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Obj. 6.02

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  1. Obj. 6.02 List the different types of fertilizers & the advantages & disadvantages of each.

  2. Types of fertilizers: • Complete or Incomplete Complete – has all 3 primary nutrients (N, P, K) Ex. 10-10-10, 15-30-15 Incomplete – is missing one or more of the primary nutrients Ex. 0-20-0, 12-0-44

  3. Organic – comes from plant or animal matter & contains carbon. Ex. Urea, sludge, animal tankage. • Organic or Inorganic Advantages: includes slow release of nutrients; not easily leached from soil & add organic components to growing media Disadvantages: hard to get, expensive, not sterile, low nutrient content

  4. Inorganic – comes from sources other than animals or plants (chemical products) Advantages – able to make the desired ratio of nutrients, lower cost, easy to get Disadvantages – no organic material & possible chemical build up in growing media

  5. Soluble– dissolve in water & are applied as a liquid solution • Soluble or Insoluble Fertigation is fertilizing through irrigation water (advantage). Insoluble – includes granular & slow release applied to the growing media.

  6. Granular – relatively inexpensive & easy to find.Slow release – more expensive than granular because it is coated. -gives a more uniform release of nutrients over time period.

  7. Fertilizer analysis – expresses the percent (%) by weight of N, P, K Ex. 10-15-20 (10% N, 15% P, & 20% K) Ratio – a comparisonEx. 1-1-1 is the ratio for 10-10-10 fertilizer What’s the ratio for 24-8-16 fertilizer? 3:1:2

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