Fertilizer Application Equipment Flashcards

What is the primary purpose of a boom sprayer's pressure regulator in liquid fertilizer application?

Answer: To maintain consistent operating pressure throughout the boom

A pressure regulator maintains consistent operating pressure to ensure uniform application rates across all nozzles on the boom.

When calibrating a dry fertilizer spinner spreader, what measurement is most critical to verify?

Answer: The actual spread width and uniformity pattern

Verifying the actual spread width and uniformity pattern ensures even coverage and prevents over- or under-application in field areas.

Which nozzle type is best suited for reducing drift during liquid fertilizer application in windy conditions?

Answer: Air induction (venturi) nozzle

Air induction nozzles produce large droplets with air bubbles that resist wind drift while still providing adequate coverage.

A fertilizer applicator notices uneven streaking in the field after using a dry spinner spreader. The most likely cause is:

Answer: Worn or damaged spinner blades

Worn or damaged spinner blades alter the trajectory and distribution of granules, causing uneven streaking patterns.

What does 'overlap' in fertilizer spreader operation refer to?

Answer: The area where adjacent spreading patterns intersect

Overlap is the intentional intersection of adjacent spread patterns to ensure uniform coverage without gaps between passes.

Which equipment component is responsible for metering the flow rate of liquid fertilizer from a nurse tank to a boom sprayer?

Answer: Flow meter or rate controller

A flow meter or rate controller measures and regulates the volume of liquid fertilizer delivered per unit area.

When storing a dry fertilizer spinner spreader during the off-season, what is the most important maintenance step?

Answer: Thoroughly cleaning and removing all fertilizer residue

Removing all fertilizer residue prevents corrosion caused by hygroscopic fertilizer salts that attract moisture and degrade metal parts.