Determining Fertilizer Formulations

Fill in the blank: Fertilizer analysis includes the percentage of three macronutrients: nitrogen, phosphoric acid, and ______.

• A) Potash

• B) Calcium

• C) Magnesium

• D) Sulfur

A fertilizer containing two or three nutrients is known as a ______.

• Single-grade fertilizer

• Mixed fertilizer

• Complete fertilizer

What must bulk blending materials have to be effective?

• Different particle sizes and chemical compositions

• The same particle size and be chemically compatible

• Varied particle sizes and chemical incompatibility

Growers can choose from a wide variety of fertilizers.

• True

• False

Which of the following is NOT a factor influencing fertilizer selection?

• A) Crop to be fed

• B) Time of year

• C) Color of fertilizer

• D) Application method

True or False: Materials must have the same particle size and be chemically compatible.

• True

• False

What is the term for a fertilizer that improves the quality and makes it easier to use?

• Conditioner

• Inorganic

• Fertilizer grade

• Bulk blending

Which term is used for a fertilizer that contains all three primary elements?

• Complete fertilizer

• Single-grade fertilizer

• Fertilizer grade

• Inorganic

Which term refers to the primary nutrient content of the fertilizer?

• Fertilizer grade

• Complete fertilizer

• Bulk blending

• Inorganic

Which of the following processes is not mentioned in the diagram for releasing nutrient ions?

• Decay

• Weathering

• Dissolving

• Photosynthesis