Citrus trees (grapefruit, orange, lemon, mandarin) require a very strict and balanced nutritional regime to achieve high yields, juicy fruit, and attractive appearance. Minh Hung Fertilizer Company offers a wide range of products, from organic fertilizers and NPK to foliar fertilizers.
To use these products effectively, you need to apply the correct type of fertilizer corresponding to each growth stage of the tree. Below is a standard procedure for you to apply to your citrus orchard.
1. Recovery phase (Post-harvest):
- After pruning old and diseased branches, clean up the garden.
- Use Minh Hung's organic fertilizers as a base fertilizer around the base of the plants to increase humus content and the microbial ecosystem in the soil.
- Combine this with applying NPK fertilizers with high nitrogen (N) content to the base of the plants to help them recover quickly and develop healthy new foliage.
| Functional Group | Product Name | Dosage & Directions for Use | Main Benefits |
|---|---|---|---|
| Orchard Sanitation | FUNGIDIOXIDE | Spray evenly on stems, branches, and leaves immediately after pruning. | Controls fungi, bacteria, and viruses at pruning wounds, helping keep the orchard clean and reduce disease risks. |
| Organic & Amino Acids | MIHU ORGAXTRA | Apply as a soil drench or directly according to the manufacturer’s instructions. Suitable for plant recovery stages. | Provides amino acids, helps plants reduce stress, promotes new shoot growth, and supports rapid recovery. |
| Micronutrients | MH MULTI | Apply periodically every 7–10 days. | Provides chelated micronutrients, promotes healthy plants and greener leaves, and enhances photosynthesis to support new canopy growth. |
| High-Nitrogen NPK | MH STRONGFRUIT 30-20-10 | Mix according to the instructions on the packaging or apply as a soil drench after organic fertilization. | Stimulates uniform new shoot emergence, promoting greener and thicker new leaves. |
2. Flowering induction phase
During the flowering stimulation phase (approximately 3-4 weeks before flowering), increasing phosphorus (P) content and water restriction are key factors in promoting rapid leaf maturation and strong flower bud development. Below is a specialized product line from Minh Hung (Minh Hung AMTSC) suitable for this phase:
| Product Name | Main Ingredients | Dosage | Directions for Use |
|---|---|---|---|
| MH NPK 6-60-10 | Phosphorus (60%), Nitrogen (6%), Potassium (10%) | 250–500 g per 200 liters of water (or 25–50 g per 20 liters) | Spray evenly over the entire canopy every 7–10 days to promote flower bud differentiation. |
| MH STIM (0-44-44) | Phosphorus (44%), Potassium (44%) | Follow the instructions on the packaging. | Spray when shoots have matured to promote rapid leaf aging and support the transition to the reproductive stage. |
3. Fruit setting and fruit development stage:
During this crucial stage (fruit setting and fruit development), citrus trees require a stable supply of nutrients to both nourish the growing fruit and maintain strong fruit stalks. Based on Minh Hung Company's specialized solutions, the following products are the most suitable:
| Product Name | Main Role | Directions for Use | Benefits |
|---|---|---|---|
| MH NK 14-16 + 12.1Ca | Fruit nutrition with high potassium and calcium content | Soil application: 200–300 g per plant, depending on plant age. | Promotes strong fruit stems and firm fruits while helping reduce fruit cracking. |
| MH MULTI | Provides chelated micronutrients | Foliar spray: 20 g per 20–25 liters of water. | Promotes healthy plants, greener leaves, and uniform fruit development. |
| MAGNI-MH | Supports fruit development and plant vigor | Apply as a foliar spray or soil drench according to the recommended instructions. | Helps reduce plant stress, maintain healthy fruit, and improve resilience under unfavorable conditions. |
4. Pre-harvest period (1-2 months)
The pre-harvest period is crucial for determining the commercial quality of the fruit. Following your strategy of stopping nitrogen fertilization and focusing on potassium (K), Minh Hung Company (Minh Hung AMTSC) offers product lines with high potassium content to enhance fruit color, sweetness, and firmness. Below are the most suitable products for this stage:
| Product Name | Recommended Dosage | Directions for Use |
|---|---|---|
| MH-NK 12-45 | Mix 1 kg with 200–400 liters of water. | Apply as a foliar spray or through drip irrigation every 7–10 days. |
| MH MULTI | Foliar spray: 20–30 g per 20-liter tank. | Apply periodically to maintain green leaves and enhance fruit sweetness. |
