Transcript Document

Plant Nutrition vs. Plant
From foukeffa.org
Fertilization
Written by Jana Shumaker
Ag Student Texas A&M
GA Ag Ed Curriculum Office
To accompany the
Georgia Agriculture Education Curriculum
Course 01462 Unit 9
July 2001
August 2008
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Plant Nutrition Vs Plant
Fertilization
Nutrition:
Availability and
type of chemical
elements
in plant
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Fertilization:
Adding nutrients
to soil
Nutrients
16 elements:
• C, H, O,
• Macronutrients
• Micronutrients
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Macronutrients
• Nutrients required in
large quantities
• N
• P
• K
• Ca
• Mg
• S
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Primary Nutrients
• N
• P
• K
• Primary because they are
needed in large amounts
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Secondary Macronutrients
• Ca
• Mg
• S
Only moderate amounts required
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Micronutrients
(Nutrients needed in small
quantities)
•
•
•
•
•
B
Cu
Cl
Fe
Mn
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• Mo
• Na
• Zn
How to Remember????
• C HOPKNS Ca Fe Mg
(C. Hopkins café might good)
Remaining nutrients:
B, Cu, Cl, Mn, Mo, Zn
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What are the role of
nutrients?
(refer to handout)
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What makes plants look
Unhealthy?
• Discoloration of leaves
• Death of leaf tissue
• Stunted growth
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Examples
Discoloration
of
Leaves
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Nutrient Deficiencies
• N
• Chlorosis on
lower leaves
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Nutrient Deficiencies
• N
• Chlorosis of
leaves
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Nutrient Deficiencies
• P
• Purplish
coloration
of leaves
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Nutrient Deficiencies
• K
• Chlorosis
of leaves
• Brown leaf
edges
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Nutrient Deficiencies
• K
• Chlorosis
of leaves
• Brown leaf edges
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Nutrient Deficiencies
S: yellowing of entire plant; leaves
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How can you correct nutrient
deficiency?
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Fertilizer
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What is fertilizer?
Any material added to the soil to
provide nutrients that will increase
growth, yield, or nutritional value of
the plants.
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Fert. Classifications
• Inorganic
• Natural Organic
• Synthetic Organic
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Inorganic Fert.
• Non-living sources (minerals/rocks)
• Chemically made
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Inorganic Fert.
Characteristics:
• Nutrients in soluble form
and quickly made available to plants
• Should not come in contact with roots
or foliage for long time period
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Natural Organic
• From plant/animal material
Characteristics:
• N usually predominant
• Nutrients are only made available to the
plants as the materials decay in soil, so
SLOW ACTING & LONG LASTING
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Natural Organic
Examples:
• Animal manure
• Cottonseed meal
• Soybean meal
• Dried blood
• Dried ground/sewage sludge
• Bone meal
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Synthetic Organic Fert.
• Made from carbon based materials
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Sources of Info
• Various pictures used in this presentation
were found on various internet sites.
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