- Libro 10-52-10 + micronutrients is a high-phosphorus water-soluble fertilizer containing 10% nitrogen (N), 52% phosphorus (P₂O₅) and 10% potassium (K₂O). It is designed to deliver a concentrated phosphorus boost during the critical early growth stages: the high phosphorus level activates the root system, increases phosphorus availability in the plant and in the fertilizer solution (nutrient availability) and improves uptake efficiency. It also improves the plant's physiological readiness for flowering and supports early fruit set when applied at the right time. The formula uses highly soluble phosphorus sources (MAP + MKP) for fast uptake, while the nitrogen provides adequate nutrition without excessive vegetative growth. Its low pH (about 4) helps lower the alkalinity of the fertilizer solution and reduce phosphorus fixation in alkaline soils, reduces salt precipitation in irrigation lines and improves system efficiency. The added micronutrients support vital processes and reduce deficiency symptoms.
Key Features:
- Very high phosphorus content (52%) for a strong boost to root activity and faster establishment.
- Increases phosphorus availability and improves nutrient uptake efficiency.
- Supports flowering and early fruit set and improves fruit-set rate when used at the right time.
- Low pH (about 4) lowers fertilizer-solution alkalinity and reduces phosphorus fixation.
- Helps reduce salt deposits in irrigation lines and improves irrigation system efficiency.
- Ideal for weak roots, delayed growth or poor response to fertilization.
Specifications:
- Trade name: LIBRO 10-52-10 + TE
- Formula: NPK 10-52-10 + trace elements (TE)
- Total nitrogen (N): 10%
- Nitrogen sources: Ammonium + urea
- Soluble phosphorus (P₂O₅): 52%
- Phosphorus sources: MAP + MKP (highly soluble)
- Soluble potassium (K₂O): 10%
- Secondary and micronutrients:
- Magnesium (MgO): 500 ppm
- Iron (Fe): 600 ppm
- Copper (Cu): 100 ppm
- Manganese (Mn): 200 ppm
- Zinc (Zn): 200 ppm
- Boron (B₂O₃): 200 ppm
- Molybdenum (Mo): 15 ppm
- pH: Low (about 4)
- Fertilizer type: Highly water-soluble compound fertilizer
- State: Fully water-soluble
- Net weight: 25 kg
Directions for Use:
- Foliar spray: 1–2 g per liter of water (100–200 g per 100 L). Spray to full coverage and repeat every 10–14 days depending on crop stage.
- Fertigation: 2–4 kg per hectare per irrigation.
- Can be used in foliar or fertigation programs depending on the farming system.
- Adjust the rate for the establishment stage or the pre-flowering stage.
Suitable Crops:
- Vegetables (tomato, cucumber, pepper, eggplant): Right after transplanting and before flowering to activate roots and stimulate fruit set.
- Field crops (wheat, barley, corn): At early growth to strengthen roots and improve uptake.
- Fruit trees (date palm, citrus, grapes, other fruit): Before flowering to stimulate fruit set and improve response.
- Forage: At establishment or after cutting to stimulate rooting and regrowth.
- Greenhouses: In the early stages or before flowering.
When to Use:
- When early growth is weak or root formation is slow.
- Just before flowering to improve readiness for fruit set.
- When phosphorus deficiency symptoms appear, such as weak roots or slow growth.
- When the plant responds poorly to fertilization despite available nutrients.
When Not to Use:
- After fruit formation has started or during fruit fill.
- When more potassium is needed to improve fruit quality.
- In cases of excessive vegetative growth.
Precautions:
- Do not mix with calcium nitrate in the same tank.
- Avoid mixing with high-calcium fertilizers or other phosphates to prevent precipitation.
- A jar test is recommended before mixing.
- Overuse may inhibit the uptake of some other nutrients.
- Avoid spraying in high heat or under direct sunlight.
- Do not exceed the recommended rates.
- Store in a cool, dry place away from moisture.
Orkida Tip:
- Use this product as a concentrated phosphorus boost, not as a season-long fertilizer. It works quickly where roots or uptake are weak, and its success depends largely on timing: applied at the right moment, it can make the difference between weak growth and a strong, balanced crop. For any questions, contact our customer service on WhatsApp: 0563033126.