What is guaranteed fertilizer analysis?

Asked By: Tajinder Velikih | Last Updated: 26th January, 2020
Category: science chemistry
4.3/5 (23 Views . 37 Votes)
The guaranteed analysis (or fertilizer grade) is a listing of nutrients contained in the bag, by weight. The first number of the analysis lists % N, the second number represents % P2O5 (phosphate), and the third number % K2O (potash). The guaranteed analysis of the fertilizer in the above example is: 18-6-12.

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Besides, what is fertilizer analysis?

Fertilizer analysis refers to a fertilizer's formulation of the three macronutrients: nitrogen (N), phosphorus (P), and potassium (K). Fertilizer analysis is important to gardening because the formula required by plants differs from lawns, perennials, shrubs, trees, and flowers, as well as vegetable and fruit gardens.

Additionally, what is high analysis fertilizer? Fertilizers that have more than 30% total available nutrients are called high analysis fertilizers, whereas those with less than 30% total available nutrients are called low analysis fertilizers. A 15-15-15 is a high analysis fertilizer; a 5-10-10 is a low analysis fertilizer, and a 10-10-10 is right on the borderline.

Accordingly, what is low analysis fertilizer?

A complex fertilizer that is formed by mixing ingredients that react chemically, as opposed to a mechanical mixture of two or more fertilizers. A low analysis fertilizer product contains a low percentage of nutrients, usually 30 per cent or less and a high analysis fertilizer contains more than 30 per cent.

How do you read a fertilizer analysis?

Understanding the Fertilizer Label The first number is the amount of nitrogen (N), the second number is the amount of phosphate (P2O5) and the third number is the amount of potash (K2O). These three numbers represent the primary nutrients (nitrogen(N) - phosphorus(P) - potassium(K)).

34 Related Question Answers Found

What fertilizer is high in potassium?

Kelp Meal: Available dried or liquid, kelp and seaweed offer potassium to the soil in a fairly quick-release form. Greensand: Mined from ancient former sea beds and is rich in a number of minerals including potassium. It's used both as a fertilizer and a soil conditioner, or it can be mixed with compost.

What does potassium do in fertilizer?

Potassium is the third key nutrient of commercial fertilizers. It helps strengthen plants' abilities to resist disease and plays an important role in increasing crop yields and overall quality.

Which fertilizer is high in nitrogen?

Fertilizers that supply the most nitrogen include urea (46-0-0) and ammonium sulfate (21-0-0). Due to its high nitrogen content, urea can damage plants when applied neat, so it's often sold mixed with other agents.

What are the types of fertilizer?

What Are Different Types of Fertilizer?
  • 1.Ammonium nitrogen fertilizer.
  • 2.Nitrate nitrogen fertilizer.
  • 3.Amide nitrogen fertilizer.
  • Phosphorus fertilizer.
  • 2.Mixing soluble phosphate fertilizer.
  • 3.Citrate-soluble phosphatic fertilizer.
  • 1.Agricultural waste.
  • 2.Livestock manure.

What is fertilizer ratio?


Prominently featured will be the N-P-K ratio, the percentage the product contains by volume of nitrogen (chemical symbol N), phosphorus (P), and potassium (K). A 16-16-16 fertilizer, for example, contains 16% nitrogen, 16% phosphorus, and 16% potassium.

What is the best fertilizer?

The Top 5 Best Lawn Fertilizers
  1. Scotts Green Max Fertilizer. If you want easy and quick green grass, then Scotts Green Max is the fertilizer for you.
  2. Miracle-Gro Lawn Food. This is one of the most popular lawn fertilizers for a reason.
  3. Safer Brand 9333 Ringer Fertilizer.
  4. Milorganite 0636 Fertilizer.
  5. Scotts Turf Builder.

Where can I use 10 10 10 fertilizer?

Apply the 10-10-10 slow-release fertilizer at a rate of 10 pounds per 1,000 square feet of lawn to provide the lawn with 1 pound of nitrogen. Do not exceed this rate. Position a fertilizer spreader over a sidewalk, driveway or other hard surface.

What is p205 fertilizer?

Fertilizer Labeling
Phosphorus is expressed on the oxide basis as "available phosphoric acid" (P205). Potassium is expressed as "soluble potash" or potassium oxide (K20). Phosphorus exists most commonly as monocalcium phosphate, but also occurs as other calcium or ammonium phosphates.

How do you calculate p2o5 fertilizer?

The conversions are quite simple:
  1. To convert P2O5 to P divide by 2.29. To convert P to P2O5 multiply by 2.29.
  2. To convert K2O to K divide by 1.21. To convert K to K2O. multiply by 1.21.

What is fertilizer carrier?


Nutrient elements are never applied in their pure form; rather, they occur with other elements as components of specific chemicals. Thus, fertilizer carriers are usually mixtures of chemicals formulated in ways that render them suitable for application.

What is crop nutrient?

Crop nutrients. Nitrogen (N), phosphorous (P), and potassium (K) are the three main nutrients that are conventionally supplied by inorganic fertilizers. Nutrients may also be supplied by other products and processes such as organic manures, plants residues, and biological nitrogen fixation.

Which fertilizer should not be mixed?

Ammonium phosphates and super phosphates should not be mixed with lime, slag, rock phosphate or CAN. Potassium chloride and sulfate of potash can be mixed with most fertilizers, but mixtures of these fertilizers with urea and calcium ammonium nitrate should not be stored.

What are simple fertilizers?

Simple or straight fertilisers are designed to supply only one nutrient element. Depending upon the nutrient availability they are further classified as nitrogenous, phosphatic and potassic fertilisers. Ammonium nitrate in the form of 'Nitram', containing 34.5% of nitrogen, is a good example.

Which fertilizer increases the acidity of soil?

Nitrogen Fertilizers
This increases soil acidity unless the plant directly absorbs the ammonium ions. The greater the nitrogen fertilization rate, the greater the soil acidification. As ammonium is converted to nitrate in the soil (nitrification), H ions are released.

Is superphosphate a nitrogenous fertilizer?


"Fertilizers are chemical compounds containing nitrogen, phosphorous, sulphur, Fertilizers are generally inorganic salts such as ammonium nitrate,ammonium sulphate, superphosphate, triple phosphate and potassium nitrate etc. Urea is organic in nature.

What is a mixed fertilizer?

Mixed fertiliser typically refers to a fertiliser containing two or more of the elements of nitrogen, phosphorus and potassium (NPK) which are essential for promoting plant growth and high crop yields. They can be incorporated in fertiliser mixtures.

What is complete fertilizer?

A complete fertilizer is a fertilizer blend or mix that contains the three main plant nutrients: nitrogen (N), phosphorus (P), and potassium (K), in the forms of potash, phosphoric acid, and nitrogen. This would be considered a general-purpose, complete fertilizer.