HOW TO APPLY WATER - SOLUBLE FERTILIZER ???
जोड़ना
How to Apply Water-Soluble Fertilizer
Water-soluble fertilizers (WSF) are fertilizers that dissolve completely in water and can be applied either through drip/fertigation or as a foliar spray. They provide nutrients quickly and are commonly used for vegetables, fruits, flowers and field crops.
1.Through Drip Irrigation (Fertigation)
This is one of the most efficient methods.
Steps:
- Select the water-soluble fertilizer according to the crop and nutrient requirement.
- Calculate the required fertilizer dose for the area.
- Dissolve the fertilizer completely in clean water in a separate tank/bucket.
- Filter the solution if necessary to prevent clogging.
- Inject the solution into the drip irrigation system.
- Run plain water through the system before and after fertigation to distribute the fertilizer and clean the lines.

Example:
If the recommended dose is 5 kg fertilizer/acre, dissolve the required quantity in sufficient water and apply it through the fertigation system according to the crop schedule.
2.Foliar Spray
Water-soluble fertilizers can also be sprayed directly on leaves when the product label recommends foliar application.
Steps:
- Measure the recommended quantity of fertilizer.
- Dissolve it thoroughly in clean water.
- Filter the solution before filling the sprayer.
- Spray uniformly over the foliage.
- Prefer spraying during the early morning or late afternoon.
- Avoid spraying during very hot weather, strong sunlight or when rain is expected.
Important Precautions
- Always follow the fertilizer label or crop-specific recommendation for dosage.
- Do not increase the concentration thinking it will give faster results; excessive concentration can cause leaf burn or fertilizer injury.
- Do not mix different fertilizers or pesticides unless their compatibility is confirmed.
- Some fertilizers containing calcium should not be mixed in concentrated stock solutions with phosphate- or sulfate-containing fertilizers, because precipitation can occur.
- Use clean water and clean fertigation equipment.
- Store fertilizers in a dry place away from moisture.
- Adjust the application according to crop stage, soil condition, irrigation method and nutrient deficiency.
4. Best Application Method
| Method | Main advantage | Suitable for |
|---|---|---|
| Drip/Fertigation | Efficient root-zone nutrient delivery | Vegetables, fruits, flowers, protected cultivation |
| Foliar spray | Rapid nutrient absorption through leaves | Micronutrients and corrective feeding |
| Soil application | Nutrients supplied to root zone | Crops where soil application is recommended |
Simple Formula for Preparing a Spray
If the recommendation is 1 g/L:
Required fertilizer = Water volume × Dose
For 15 litres of water:
15 × 1 = 15 g fertilizer
So, dissolve 15 g fertilizer in 15 litres of water.
