PSR Granules
A Sargassum tenerrimum granular biostimulant on a sustained-release pH-buffering carrier. PSR was developed in 1990 as a sucrose enhancer for sugarcane and trialled across 1,160 acres by helicopter, India's first trial at that scale. The granular form goes in with basal fertiliser before planting or pruning.
- Composition
- Sargassum tenerrimum 2% (granular), sustained-release carrier
- Registered as
- Biostimulant · seaweed extract (granular)
- Pack sizes
- 10 kg · 25 kg
- Crops
- Grapes · Pomegranate · Sugarcane · Banana · Mango · Vegetables · Cotton · Soybean
Dose and timing
How PSR Granules is used.
| Crop / use | Rate | When |
|---|---|---|
| Grapes · pomegranate | 50 kg/acre with cow dung | 10 days before pruning |
| Vegetables | 25 kg/acre | 10 days before planting |
| Cotton · soybean | 25 kg/acre with basal fertiliser | Before sowing |
| Banana | 100 g/plant | At planting |
| Mango · long-duration crops | 60 kg/acre (250-500 g/tree by age) | Before monsoon, once a year |
Rates are from Phytotron's programme sheets and the printed label. Dose and product name always travel together; your farm specialist confirms the final rate for your variety and weather.
Recommended farmer price, FY 2026-27
from ₹600 (10 kg), incl. GST
Recommended farmer price for FY 2026-27, inclusive of GST (5%; Advara Gold 18%). Ask your dealer for the best available price.
In the programme
Where PSR Granules sits on the calendar.
Grapes
50 kg/acre with cow dung, about 10 days before pruning
Pomegranate
50 kg/acre with cow dung & fertilisers
Mango
60 kg/acre basal · 250 g/tree (0-2 yr) · 500 g/tree (3-5 yr)
Banana
100 g per plant with cow dung & fertilisers
Vegetables
25 kg/acre with cow dung & fertilisers
Cotton
25 kg/acre with basal fertiliser
Soybean
25 kg/acre with basal fertiliser