Plant Nutrition vs. Plant Fertilization

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Plant Nutrition vs. Plant Fertilization

• From foukeffa.org
• Written by Jana Shumaker
• Ag Student Texas AM
• GA Ag Ed Curriculum Office
• To accompany the
• Georgia Agriculture Education Curriculum
• Course 01462 Unit 9
• July 2001

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Plant Nutrition Vs Plant Fertilization

• Nutrition
• Availability and type of chemical
• elements
• in plant

• Fertilization
• Adding nutrients to soil

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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)

• Mo
• Na
• Zn

• B
• Cu
• Cl
• Fe
• Mn

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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.