What are the main types of fertilizers?

Fertilizers are substances added to soil to supply essential nutrients required for plant growth. They are broadly classified based on their source and composition.

1. Organic Fertilizers

These are natural fertilizers derived from plant and animal waste.

Examples:

• Compost
• Cow dung manure
• Vermicompost

Key features:

• Improve soil structure
• Release nutrients slowly
• Environment-friendly

2. Inorganic (Chemical) Fertilizers

These are manufactured fertilizers that provide nutrients in a concentrated form.

Examples:

• Urea (Nitrogen)
• DAP (Diammonium Phosphate)
• Potash

Key features:

• Quick nutrient supply
• Easy to apply
• Overuse can harm soil health

3. Biofertilizers

These contain living microorganisms that help in nutrient availability.

Examples:

• Rhizobium
• Azotobacter
• Blue-green algae

Key features:

• Enhance soil fertility naturally
• Eco-friendly and sustainable

Based on Nutrient Content

• Nitrogen fertilizers: promote leaf growth
• Phosphorus fertilizers: support root development
• Potassium fertilizers: improve overall plant health

Final Insight

Choosing the right type of fertilizer and using it in balanced amounts is essential for maintaining soil fertility and achieving high crop yield.