Question

Write two advantages of using bio-fertilizers over chemical fertilizers.

Hint:

Bio-fertilizers are a key component of Integrated Pest Management (IPM) and sustainable agriculture.

Answer 1

Step 1: Understanding the Concept:
The shift from chemical to organic farming is driven by the negative environmental impacts of synthetic fertilizers.
Step 2: Detailed Explanation:
1. Environmental Safety: Chemical fertilizers often leach into water bodies, causing eutrophication and soil degradation. Bio-fertilizers are non-polluting and eco-friendly.
2. Sustainability and Soil Health: Bio-fertilizers maintain the natural nutrient cycle and improve soil structure and water-holding capacity. They are a low-cost, renewable source of nutrients, whereas chemical fertilizers are expensive and non-renewable.
Step 3: Final Answer:
Advantages include environmental protection (no pollution) and long-term improvement of soil health and sustainability.