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)
What Phosphorus fertilizer product is made from Human Shit?
Crystal Green
Phosphites are potassium fertilizers.
True or False?
True
Potassium Phosphites do not count as Phosphorus fertility.
True or False
True
What is potassium really impportant for with plant health?
Stress Management
– Cold
– Heat
– Drought
– Wear (traffic