6 Flashcards
“Bulk” Fertilizers Refers to how it is _______.
Sold
not individually bagged or packaged.
Define Solution:
- clear fluids that are completely dissolved.
Define Suspensions:
contain dissolved and undissolved materials and a suspending agent such as clay.
Define Slurries:
dissolved and undissolved materials which require constant agitation to keep undissolved materials from settling.
Name the three types of Nitrogen Release.
- Cold Water Soluble
- Hot Water Soluble
- Water Insoluble
What is the best way to apply Potassium?
Spoon Feed.
That shit leaches man…..
What’s the difference between cold water soluble and hot water soluble?
- Cold water soluble is fast release
- Less avavilable N because it needs warmer soil temps to release.
Give 2 examples of CWS Nitrogen.
– Calcium nitrate
– Ammonium sulfate
– Monoammonium phosphate (MAP)
– Ammonium nitrate
– Potassium chloride
– Other forms (urea)
What are some disadvantages to Quick Release N?
- Rapid response (can be short lived)
- High salts indices (more on this later)
- Corrosive and combustible
- Difficult to store (more be very dry)
- Susceptible to leaching
Nitrogen release by Organic Fertilizers is dependant on _____.
Microbial Activity
Turf responses to Phosphorus include:
– Enhanced cold tolerance
– Increased water use
– Recovery from wear and drought (rooting)
– Increase establishment (germination and vigor)
What are plant symptoms when they are deficient in Phosphorus?
Dark Green Color
Stunted Growth
Lower leaves begin to turn reddish
What 3 factors affect Phosphorus availability?
- pH
- P levels in the soil
- Type of soil
What are the 2 most common forms os Phosphorus in turf fertilizers?
– MAP (monoammonium phosphate)-
– DAP (diammonium phosphate)
