- Libro 10-52-10 + Micronutrients is a high-phosphorus soluble fertilizer with a formula containing 10% nitrogen (N), 52% phosphorus (P₂O₅), and 10% potassium (K₂O). It is designed to provide a concentrated phosphorus boost during critical early growth stages. The high phosphorus content activates the root system, increases phosphorus availability within the plant and in the fertilizer solution, and enhances absorption efficiency. It also improves the plant's physiological response to flowering and supports fruit set when applied at the appropriate time. The formula contains highly soluble phosphorus sources (MAP + MKP) to ensure rapid absorption, while nitrogen provides sufficient nutrient support without causing excessive vegetative growth. Its low pH (approximately 4) helps reduce the alkalinity of the fertilizer solution and minimize phosphorus fixation in alkaline soils. It also contributes to reducing salt precipitation within irrigation systems and improving system efficiency. Additionally, it contains... Micronutrients support vital processes and reduce the symptoms of nutrient deficiencies.
Product Features
- It contains a very high percentage of phosphorus (52%) which gives a strong boost to activate the roots and accelerate establishment.
- It helps increase phosphorus availability and raise the efficiency of nutrient absorption within the plant.
- It supports flowering and the beginning of fruit set and improves the fruit set percentage when used at the right time.
- A low pH (around 4) helps to lower the alkalinity of the fertilizer solution and reduce phosphorus fixation.
- It helps reduce salt deposits within irrigation networks and improves the efficiency of irrigation systems.
- Ideal for treating weak roots, delayed growth, or poor response to fertilization.
Technical specifications
- Composition: NPK 10-52-10 + Trace Elements (TE)
- Total nitrogen (N): 10%
- Nitrogen sources: Ammonium + Urea
- Soluble phosphorus (P₂O₅): 52%
- Sources of phosphorus: MAP + MKP (highly soluble)
- Soluble potassium (K₂O): 10%
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 level: Low pH (around 4)
- Fertilizer type: Highly water-soluble compound
- State: Completely soluble in water
- Net weight: 25 kg
How to use
- For foliar spraying: 1-2 grams per 1 liter of water (100-200 grams per 100 liters of water).
- Spray until thoroughly wet.
- Repeat every 10-14 days depending on the plant stage.
- For fertilization via irrigation: 2-4 kg per hectare per irrigation.
- It can be used within foliar fertilization programs or via irrigation, depending on the farming system.
- The dosage is adjusted according to the establishment stage or before flowering.
Suitable crops
- Vegetables (tomatoes, cucumbers, peppers, eggplants): Used immediately after planting and before flowering to activate the roots and stimulate nodulation.
- Field crops (wheat, barley, corn): It is used at the beginning of growth to strengthen the roots and increase absorption efficiency.
- Fruit trees (palms, citrus, grapes, fruits): It is used before flowering to stimulate fruit set and improve response.
- Forage: Used in the establishment or after cutting to stimulate rooting and growth.
- Greenhouses: Suitable in the early stages or before flowering.
When should you use this product?
- When growth is weak in the early stages or root formation is slow.
- Just before flowering to improve the plant's readiness for fruit set.
- When symptoms of phosphorus deficiency appear, such as weak roots or slow growth.
- When the plant's response to fertilization is weak despite the availability of nutrients.
- When is it not recommended to use it?
- After the fruit begins to form or during the fattening stage.
- When potassium needs to be increased to improve fruit quality.
- In cases of excessive vegetative growth.
Technical advice
- This product is used as a concentrated phosphorus boost and not as a continuous fertilizer throughout the season. Its effect appears quickly in cases suffering from weak roots or poor absorption. Its success depends largely on choosing the right time for use, as using it at the right time may be the difference between weak growth and a strong, balanced crop.
Warnings
- Do not mix with calcium nitrate inside the same tank.
- It is preferable not to mix it with other high-calcium or phosphate fertilizers to avoid precipitation.
- It is recommended to test the mixture before use.
- Excessive use may inhibit the absorption of some other elements.
- Avoid spraying during periods of high heat or under direct sunlight.
- Do not exceed the recommended doses.
- Store in a cool, dry place away from moisture.