Compound fertilizer for agricultural use
1. Product overview
Compound Fertilizer is a kind of fertilizer prepared by scientific proportion of various nutrient elements such as nitrogen (N), phosphorus (P), potassium (K) ** and so on. It has the characteristics of best nutrient balance, lasting fertilizer effect and convenient application. It is suitable for field crops, cash crops, fruits and vegetables and horticultural plants. It can significantly improve crop yield and quality.
2. Product type
| Type | Characteristics | Common ratio (N-P₂O₅-K₂O) | The applicable crop |
|-------------------|--------------------------|--------------------------|---------------------------|
| high nitrogen type | promotes stem and leaf growth | 25-10-10, 30-5-5 | wheat, maize and leafy vegetables |
| balanced | with balanced nutrients | 15-15-15, 17-17-17 | rice, cotton, fruit trees |
| high phosphorus type | promotes root development and enhances stress resistance | 10-20-10, 12-24-12 | melons and fruits, tuber crops (potato) |
| High potassium | improves fruit quality and sugar content | 10-10-30, 15-5-25 | grapes, citrus, tobacco |
| sustained release | controlled release of nutrients to reduce loss | 18-9-12 (coated) | cash crops, horticultural plants |
3. Core strengths
✔ Scientific ratio: Customized according to the law of crop fertilizer, to avoid the deficiency of single fertilization
✔ Efficient absorption: Add trace elements in chelate state (such as zinc, boron, iron) to improve utilization
✔ Improved soil: Contains organic matter or humic acid, alleviates soil compaction
✔ Environmental protection and low consumption: Slow release technology reduces nutrient loss and reduces environmental pollution
4. Technical indicators (Take 15-15-15 as an example)
| project | indicator |
|-------------------|----------------------|
| Total nutrient (N+P₂O₅+K₂O) | ≥45% |
| nitrogen (N) content | ≥15% |
| Phosphorus (P₂O₅) content | ≥15% |
| Potassium (K₂O) | ≥15% |
| moisture | ≤2.0% |
| Particle strength | ≥20N (good shatter resistance) |
5. Applicable crops and application methods
- Field crops (rice, wheat) : base application 40~50kg/ mu, topdressing 10~20kg/ mu
- Fruits and vegetables (tomatoes, strawberries) : ditch or hole application, 30~40kg/ mu
- Cash crops (tea, tobacco) : used with organic fertilizer, 20~30kg/ mu
- Drip irrigation/sprinkler irrigation: It is recommended to choose a water-soluble compound fertilizer (such as 20-20-20)
6. Packaging and storage
- Packaging: 25kg/ bag (plastic inside and woven outside), 50kg/ bag, support customization
- Storage: cool and dry place, moisture-proof, rainproof, avoid mixing with alkaline substances