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Plant Nutrients. Plant nutrients are divided into three main categories: Primary nutrients Secondary nutrients Micronutrients. Primary Nutrients. Primary nutrients are needed by the plant in large quantities. There are six nutrients in this category: - Carbon (C) - Phosphorus (P)

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plant nutrients
Plant Nutrients
  • Plant nutrients are divided into three main categories:
        • Primary nutrients
        • Secondary nutrients
        • Micronutrients
primary nutrients
Primary Nutrients
  • Primary nutrients are needed by the plant in large quantities.
  • There are six nutrients in this category:

- Carbon (C) - Phosphorus (P)

- Hydrogen (H) - Nitrogen (N)

- Oxygen (O) - Potassium (K)

secondary nutrients
Secondary Nutrients
  • Secondary nutrients are needed in quantities which are lower than primary, but greater than micronutrients. These nutrients are:

- Sulfur (S) - Iron (Fe)

- Calcium (Ca) - Magnesium (Mg)

micronutrients
Micronutrients
  • Micronutrients are needed in very small amounts, and are the greatest in number.

- Molybdenum (Mo) - Zinc (Zn)

- Boron (B) - Chlorine (Cl)

- Copper (Cu) - Manganese (Mn)

nitrogen n
Function:

Promotes rapid vegetative growth.

Gives the plant a healthy green color.

Deficiency Symptoms:

Stunted growth.

Pale yellowish color.

Burning of tip margins on leaves.

Nitrogen (N)
phosphorus p
Functions:

Stimulates early growth and root formation.

Promotes seed growth.

Hastens maturity.

Makes plants hardy.

Deficiency Symptoms:

Small growth.

Spindly stalk.

Delayed maturity.

Purplish color of leaves.

Dying of tips of older leaves.

Poor fruit and seed development.

Phosphorus (P)
potassium k
Functions:

Improves plant’s ability to resist disease and cold.

Aids in production of carbohydrates.

Deficiency Symptoms:

Slow growth.

Margins of older leaves appear scorched.

Weak stalk.

Shriveled fruit or seed.

Potassium (K)