NPK 15-30-15


Product characteristics

 NPK 15-30-15

  • Highly efficient source of Phosphate (P).
  • To be used during specific critical growth stages.
  • Highly soluble, pure, free of dust and with limited sensitivity for caking.
  • Low on sodium and chloride.
  • Trace elements are fully chelated.
  • Specially designed for foliar feeding.
  • Specially designed for fertigation in soil as well as high tech, soilless.
  • Compatible with most water-soluble fertilizers, except fertilizers containing Calcium. In this case, two tanks are required or fertilizers should be applied separately.

 
 


Dosing information

Dosing instructions | Fertigation

Crop Application date Total dosage in kg / ha
Fruit tree (stone fruit) As of start of fertigation until 4 to 6 weeks before harvesting. 100 – 200 kg
Vineyards (adult table grapes) As of start of fertigation / early stage of bud opening until end of flowering period 50 – 200 kg
Vegetables
(potato, onion, carrot)
As of start of fertigation until mid of tuber bulking stage 100 – 200 kg
Vegetables
(tomato, cucumber)
As of planting until 3 to 4 weeks before harvesting.
Depending of crop: leafy crops or fruit bearing crops.
100 – 250 kg

Dosing instructions | Foliar

Crop Application date Dosage in kg / application* Concentration of spray solution (w/v)
Fruit trees 1 – 3 applications:
- End of flowering stage / early fruit enlargement
4 – 12 kg/hа 0.4 – 1.2%
Strawberry Prior to each flowering phase - 4 – 10 kg/ha - 0.4 – 0.8%
Melon 2 – 3 applications:
- Before flowering
- At fruit set
- During fruit development stage
- 5 – 8 kg/ha 0.5 – 1.0%
Vegetables
(tomato, cucumber)
In case of additional phosphate needs as of first vegetative stage until 4-6 weeks before harvesting - 3 – 6 kg/ha 0.4 – 1.0%
Field crops (corn) 3 – 5 leaves - 2 – 6 kg/ha 0.5 – 1.0%
Vineyard Before flowering, after harvest - 3 – 6 kg/ha 0.5 – 1.5%

Packaging

Available in packages of 1.000 kg and 25 kg


Function of NPK 15 30 15

Merbabu 15 – 30 – 15 + 2MgO + TE is recommended when high rates of Phosphates (P2O5) are required by the crop during specific critical growth stages. E,g. during periods of intensive root growth or during the generative stage of the crop when bud formation, flowering and fruit setting is done.