Plant Nutrition I

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Plant Nutrition I 
By Becky McGuire
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Plant Nutrients

• needed for growth, development, production

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  16 essential nutrients

• 1.       non-mineral C, H, O
• 2.       mineral other 12
• 3.       primary N, P, K
• 4.       secondary Ca, Mg, S, B, Cl, Cu, Fe,
  Mn, Mo, Zn
• 5.       analogy C HOPKNS café Mg B Mn CuZn
  MoCl

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Nutrient Functions Deficiency Symptoms

• Nitrogen
• Function
• a. Rapid growth
• b. Chlorophyll formation
• c. Using amino acids and proteins

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Nutrient Functions Deficiency Symptoms

• N Deficiency
• A. Yellow
• B. Little growth

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Nutrient Functions Deficiency Symptoms

• Phosphorus
• Functions
• Root growth
• Forming seeds
• Deficiency
• --purple stems and leaves

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Nutrient Functions Deficiency Symptoms

• Potassium Function
• Healthy
• Disease resistance
• Stalk strength
• Potassium Deficiency
• Weak stems
• Brown margins

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Nutrient Functions Deficiency Symptoms

• Calcium Functions
• Cell walls
• Cell division
• Calcium Def.
• Deformed terminal leaves

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Nutrient Functions Deficiency Symptoms

• Magnesium Functions
• chlorophyll use/forming
• Nutrient uptake
• Magnesium Def.
• Chlorosis yellowing of lower leaves

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Nutrient Supply

• A.       C, H, O CO2 and H2O (photosynthesis)
• B.        Others soil
• C.        Macrominerals needed in large amounts
• D.       Microminerals needed in small amounts