Best Practices for Application Flashcards
7 cards from real CFA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Best Practices for Application flashcards as text
What is the purpose of a split application approach when fertilizing turf?
Answer: To divide the annual nutrient dose into multiple smaller applications
Split applications divide the total annual fertilizer dose into multiple smaller doses throughout the season, improving nutrient uptake and reducing leaching risk.
An applicator notices excessive fertilizer has been accidentally applied to one area. What is the correct immediate action?
Answer: Water the area thoroughly to dilute and move nutrients into the soil
Thorough irrigation immediately after an over-application helps dilute soluble nutrients and move them into the root zone, reducing the risk of fertilizer burn and runoff.
Which of the following is a key reason to avoid fertilizing during drought stress?
Answer: Fertilizer increases water demand and worsens drought stress
Fertilizing during drought increases plant nutrient demand and water uptake requirements at a time when water is scarce, worsening drought stress and potentially causing fertilizer burn.
When is the best time to apply a pre-emergent weed preventer combined with fertilizer (weed-and-feed)?
Answer: Just before weed seeds germinate in early spring or fall
Weed-and-feed products with pre-emergent herbicides must be applied just before target weed seeds germinate to create an effective chemical barrier in the soil.
What does a 'blackout period' for fertilization typically refer to in coastal states?
Answer: A seasonal prohibition on fertilizer use to protect water quality
Many coastal states impose seasonal fertilizer blackout periods, typically during the rainy season, to prevent nutrient runoff from entering sensitive water bodies.
Why should phosphorus fertilizers be used sparingly or avoided on established lawns in many states?
Answer: Established turf soils often already have sufficient phosphorus levels
Established lawns typically accumulate sufficient phosphorus over time, and adding more increases the risk of phosphorus runoff into waterways, causing algae blooms.
Which practice best reduces the risk of fertilizer leaching below the root zone?
Answer: Applying slow-release formulations and avoiding over-irrigation
Slow-release fertilizers and controlled irrigation keep nutrients within the root zone longer, reducing the risk of leaching into groundwater.