Organic fertilizer offers multiple advantages over chemical fertilizer, primarily in the following aspects:

1. Soil Health

• Improves soil structure: Rich in organic matter, organic fertilizer promotes the formation of soil aggregates, enhancing aeration and water retention, and preventing soil compaction. In contrast, prolonged use of chemical fertilizers can lead to soil acidification and compaction.
• Enhances soil fertility: The organic matter in organic fertilizer releases nutrients slowly, providing energy for soil microorganisms and boosting soil biological activity. Chemical fertilizers, however, only supply inorganic nutrients and can disrupt soil ecological balance over time.
• Regulates soil pH: Organic fertilizer buffers soil acidity or alkalinity, creating a better root environment for crops. Chemical fertilizers, on the other hand, can cause soil salinization or acidification.

2. Crop Quality and Yield

• Provides balanced nutrition: Organic fertilizer contains nitrogen, phosphorus, potassium, as well as secondary and micronutrients, and also offers organic nutrients like amino acids and vitamins, improving the taste, sugar content, and vitamin levels of agricultural products.
• Strengthens stress resistance: Beneficial microorganisms in organic fertilizer can suppress pathogens, reduce pest and disease incidence, and lower pesticide use.
• Stable yield and productivity: Although organic fertilizer releases nutrients more slowly, when combined with chemical fertilizers, it balances immediate and long-term effects, enhancing both yield and quality.

3. Environmental Protection

• Reduces pollution risks: Replacing some chemical fertilizers with organic fertilizer can lower the risks of water eutrophication, air pollution, and soil heavy metal residue.
• Promotes resource recycling: Utilizing agricultural waste (such as livestock manure and straw) to produce organic fertilizer reduces environmental pollution and advances circular agriculture.

4. Agricultural Sustainability

• Builds soil fertility: Long-term use of organic fertilizer enhances inherent soil fertility, reducing reliance on external chemical inputs.
• Eco-friendly: Aligns with the direction of green agriculture, helping to maintain ecological balance and reduce agricultural non-point source pollution.

5. Economic and Social Benefits

• Lowers overall costs: Reduces the use of chemical fertilizers and pesticides, improves product quality and market prices, and increases farmers' income.
• Drives healthy agriculture: Meets consumer demand for safe, high-quality food and promotes agricultural transformation and upgrading.

Summary

Organic fertilizer demonstrates significant advantages by improving soil health, enhancing crop quality, protecting the environment, and fostering agricultural sustainability. Despite higher production costs, its long-term benefits and ecological value make it a vital choice for modern agriculture.