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Understanding Different Types of Fertilizers: Advantages and Disadvantages

This article outlines the various types of fertilizers, including complete, incomplete, organic, and inorganic options. Complete fertilizers contain all three primary nutrients (N, P, K), while incomplete ones lack one or more. Organic fertilizers come from plant or animal matter and are beneficial for soil health, but can be costly and have lower nutrient content. Conversely, inorganic fertilizers offer customized nutrient ratios at lower costs but may lead to chemical buildup. Soluble and insoluble fertilizers provide different application methods, with unique advantages and disadvantages highlighted.

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Understanding Different Types of Fertilizers: Advantages and Disadvantages

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  1. Obj. 24.02 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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