Download Factors Affecting Plant Growth

Name:_______________________
Date:________________
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Ecosystem
• A system that includes all living organisms
(________________) in an area as well as its physical
environment (________________) functioning together as a
unit.
Question
• Are plants considered biotic or abiotic?
• ________________! Plants are living organisms, which
depend heavily on abiotic factors.
Factors Affecting Plant Growth
1_____________________________
2_____________________________
3_____________________________
4_____________________________
5_____________________________
6_____________________________
Nutrients
Plants need 16 essential nutrients to live.
• 2 Main Types
• ________________ Nutrients
-Elements needed in large (macro) quantities
• ________________ Nutrients
-Elements needed in very small (micro) quantities
16 Essential Elements
Hydrogen (H)
Oxygen (O2)
Carbon (C)
____________________
____________________
____________________
Magnesium (Mg)
Calcium (Ca)
Sulfur (S)
Iron (Fe)
Manganese (Mn)
Boron (B)
Copper (Cu)
Zinc (Zn)
Molybdenum (Mo)
Chlorine (Cl)
Nutrients Continued
• Plants get these three essential nutrients from
____________and _____________
• Carbon (C)
• Oxygen(O2 )
• Hydrogen(H)
• Nitrogen (N), phosphorus (P), and potassium (K).
• Found in soils
• Used in large by the plant
amounts for growth and
survival.
• Replenished through fertilization
Soil
• Soil pH determines the availability of nutrients at certain
levels
• A well structured soil:
• Allows ________________ ________________ to emerge
• Allows establishment of a strong root system.
• Allows access to ________________ and ________________
Light
Plants get energy from light through a process called
_____________________________, which takes CO2 + H20 and
sunlight to create glucose, oxygen and water.
Light ____________cause:
Stems will be leggy or stretched
out
Leaves turn yellow
Leaves are too small
Leave or stems are spindly
Brown edges or tips on leaves
Lower leaves dry up
Air
• Wind increases heat loss
due to ________________ and
________________ (wind
chill).
• It also contributes to water loss by increasing the rate of
evaporation from the soil and the ________________ of the
plants.
Water
If a plant’s soil has too much water, the roots can rot because the
plant can’t get enough ________________ from the soil.
If there is not enough ________________ for a plant, the nutrients
it needs cannot travel through the plant.
- This leads to yellowing or dried leaves
Water continued
A gardener can check the amount of water in a plant's soil by
inserting a finger in the soil.
• ________________ soil has enough water, while dry soil
needs to be watered.
Other signs of a plant needing water include a lighter-than-usual
soil that is pulling away from the pot's sides.
Climate
Climate includes:
•
•
•
•
•
________________ ________________
Rainfall
________________ ________________
Temperature
If the climate is too hot, the plants will die of
________________ and will shrivel up.
• If it is too cold, the plants will die from lack of sun.
Question
• What are the 6 factors that affect plant growth?
• ________________, ________________, ________________,
________________, ________________, ________________
Why is this information helpful?
• ________________ ________________
• Future job in ________________ ________________