Libro 30-10-10 + TE is a high-nitrogen, water-soluble fertilizer containing 30% nitrogen (N), 10% phosphorus (P₂O₅) and 10% potassium (K₂O), plus trace elements. It is designed to support plants during vegetative growth and rapid establishment: the high nitrogen level boosts vegetative growth, increases branching and builds a strong leaf canopy.
It also improves photosynthetic efficiency and speeds up the plant's response to fertilization. The formula contains several nitrogen sources (urea + ammonium + a share of nitrate) for fast uptake and a longer-lasting effect, while phosphorus supports root formation and uptake efficiency and potassium helps maintain the plant's physiological balance. Its low-pH (acidifying) formulation lowers the alkalinity of the fertigation solution and increases nutrient availability, especially in alkaline water, helps reduce salt precipitation in irrigation lines, and its micronutrients support vital processes and reduce deficiency symptoms.
Key Features
- High nitrogen content (30%) boosts vegetative growth and plant density.
- Multiple nitrogen sources (urea + ammonium + nitrate) for fast uptake and a longer-lasting effect.
- Quickly corrects nitrogen deficiency, especially in weak or slow-growing plants.
- Low pH (acidifying effect) lowers fertigation-solution alkalinity and improves uptake efficiency.
- Helps reduce salt precipitation in irrigation lines and improves drip-system efficiency.
- Suitable for foliar spraying to give a quick growth boost when needed.
Specifications
- Formula: NPK 30-10-10 + trace elements (TE)
- Total nitrogen (N): 30%
- Urea nitrogen: 27.5%
- Ammoniacal nitrogen: 2.5%
- Nitrate nitrogen: low share
- Water-soluble phosphorus (P₂O₅): 10% (from monoammonium phosphate)
- Water-soluble potassium (K₂O): 10% (from potassium sulfate)
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
Physical Properties
- pH: low (about 4)
- Fertilizer type: highly water-soluble compound fertilizer
- Form: 100% water-soluble
- Net weight: 25 kg
Directions for Use
- Foliar spray: 1–2 g per 1 liter of water (100–200 g per 100 liters of water).
- Spray until full wetting of the foliage.
- Repeat every 10–14 days depending on growth stage.
- Fertigation: 2–4 kg per hectare per irrigation.
- Adjust the rate according to the vegetative growth stage.
Suitable Crops
- Vegetables (cucumber, lettuce, tomato in early growth): to increase vegetative growth and branching.
- Field crops (wheat, barley, corn): early in the season to increase plant density.
- Forage (alfalfa, Rhodes grass): boosts vegetative growth and speeds regrowth after cutting.
- Fruit trees: early in the season to activate vegetative growth.
- Greenhouses: during the early growth stages to increase plant vigor.
Precautions
- Do not mix with calcium nitrate in the same tank.
- May cause excessive vegetative growth at the expense of flowering if applied at the wrong time.
- Avoid spraying during high temperatures or under direct sunlight.
- Do not exceed the recommended rates.
- Store in a cool, dry place away from moisture.
Orkida Tip
- Use this fertilizer during vegetative growth only. It works quickly on plants with weak growth or leaf yellowing caused by nitrogen deficiency. Avoid using it just before or during flowering so it does not push vegetative growth at the expense of flowering and fruit set.