Plant Nutrition
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Transcript Plant Nutrition
Plant Nutrition
Floral Careers Plant Propagation
Non-fertilizer Nutrients
Carbon (C), Hydrogen (H) and Oxygen (O).
These elements are supplied to the plant in
the water and carbon dioxide it absorbs for
photosynthesis.
All 3 are essential, non-fertilizer
macroelements (or macronutrients).
Macroelements
Macroelements are elements required by
plants in relatively large quantities.
In addition to C, H, and O, 6 other elements
are recognized as macroelements.
Macroelements
They are:
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Nitrogen (N)
Phosphorous (P)
Potassium (K)
Calcium (Ca)
Magnesium (Mg)
Sulfur (S)
Microelements
Microelements are elements needed by
plants in very small quantities.
Microelements are just as important as
macroelements.
Microelements
There are 8 essential microelements:
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Iron (Fe)
Copper (Cu)
Zinc (Zn)
Manganese (Mn)
Boron (B)
Molybdenum (Mo)
Chlorine (Cl)
Nickel (Ni)
The Essential Elements
Carbon (C)
Hydrogen (H) +
Oxygen (O)
6
+
Macroelements
8
Microelements
=
Essential
Elements
17
for
Plant
Growth
Deficiency Symptoms of the
Macroelements and Iron
Nitrogen Deficiency
General chlorosis
(yellowing) of the
leaves.
Older leaves showing
symptoms first.
N deficiency in potato
Phosphorous Deficiency
Reduced plant size
Darkened foliage with
a purplish cast.
P deficiency in corn
Potassium Deficiency
Margins eventually
turning brown.
Symptoms develop on
lower leaves first.
K deficiency on red currant
Calcium Deficiency
Young leaves are
prominently malformed.
Poor root development.
Ca deficiency on sugar
beet
Magnesium Deficiency
Interveinal chlorosis.
Starts on the older
leaves and progresses
towards the top of the
plant.
Mg deficiency on grape
Sulfur Deficiency
A chlorosis develops which affects the entire
plant except the very tip.
Symptoms similar to a nitrogen deficiency.
Iron Deficiency
Interveinal chlorosis
developing on the
youngest leaves first.
Damage confined to
the upper regions of
the plant.
Fe deficiency on cherry
The End