Transcript Comparing Phosphorus Soil Levels

Comparing Phosphorus Soil
Levels
Bessemer Park and Russell Square
Is Chicago Sustainable?
By Ruby D.
Introduction!
Phosphorus (P) is a key nutrient in plants development and is
needed for photosynthesis.
P is also needed to form all oils, sugars, and starches in plants(
this is how we humans get our P- form plants)
P is involved in blooming, root growth and helps plants handle
stress.
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WHAT HAPPENS WHEN PLANTS DON'T GET ENOUGH PHOSPHORUS :
Plants that don't get enough P have thin-stems that are weak.
Their growth is stunted or shortened, and their older leaves
turn a dark bluish-green.
How do plants get phosphorus?
P is macronutrient that
plants obtain from the
soil
Because it’s a
macronutrient, plants
need it in macro( very
large) amounts.
Our question!
• My team wanted to know…
• What is the difference in soil
quality between our South
Chicago community and other
Chicago neighborhoods?!
Our prediction and hypothesis!
• My team predicted that. . .
– The soil in Bessemer Park will have more
phosphorus than South Chicago.
Methods!
• Procedures!:
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Testing the soil
Each group will recieve 2 Erlenmeyer flasks (125mL),
each filled with 30mL of distilled water
Each Erlenmeyer flask has a rubber stopper and one
pipette
Two people will recieve two ,Floc-ex, tablets and insert
them into the flasks of water. Once the tablets have
been inserted, the flask must be shaken until the pills
are disolved
Once the solution is completely mixed and tablets
dissolved, take three pinches of your soil and put into
one of the flasks- then shake the soil/mixture
vigiorously for one minute with the stopper on top.
Methods
• procedures:
• Once the solution is completely mixed and tablets
dissolved, take three pinches of your soil and put
into one of the flasks- then shake the soil/mixture
vigiorously for one minute with the stopper on
top.
Methods
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Materials! :
Cups (four clear cups)
Tablets
Gloves (8)
Flower pots (4)
Ruler (cm)
Camera
Different soil (Houston,
Russel square Park and
Escanaba, Bessemer Park)
• Seeds ( four seeds, or 2 Daisy
seeds, and 2 Tulipes seeds)
• Pipet (1)
• Recording chart
Methods!
• Steps taken!!
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window where they can get the
same amount of sunlight.
Step One- different parks Russell • Step Six- Water each pot until the
Square and Bessemer park
soil is moist.
Step Two-One cup of soil from each • Step Seven- Record the days it
park (put on gloves).
started to sprout ( how long it took
from day one?)
Step three-label the flower pots (R)
for Russell and (B) for Bessemer
• Step Eight- Also measure the
Park.
different height of it every ten
days. (With cm ruler)
Step four- Plant one seed in each
flower pot one daisy and one tulip
seed for each park pot.
Step five- Put the flower pots in the
References
• Better crops. 1999. Functions of phosphorus in
plants. Better crops. Vol 83, NO 1. (6-7).
• Elmhurts. 2010. phosphorus cycle. (Online).
Available from:
http://www.elmhurst.edu/~chm/vchembook/308
phosphorus.html
• NCAGR. 2010. Plants Nutrients. (online). Available
from:
http://www.ncagr.gov/cyber/kidswrld/plant/nutri
ent.html