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- Address : Bathalagoda, Ibbagamuwa, Sri Lanka
- E- Mail : rrdi@doa.gov.lk
- Telephone : +94 372 258561
- Fax : +94 372 259881
TECHNOLOGIES
Soil Science Division - Seedling treated with Phosphorous fertilizer in parachute nursery in rice cultivation
![](https://doa.gov.lk/wp-content/uploads/2021/03/RRDI_Soil_Tech3.jpg)
Technology
Place 3 – 4 particles of Phosphorous fertilizer (TSP) in seedling hole in parachute tray before placing soil and rice seeds
Broadcast TSP treated seedlings after 12 to 14 days
Benifits
- 15 – 25 kg TSP per hectare can be saved
- Reduced soil & water pollution
Number of particles per hole | Number of particles per tray | TSP weight (g/tray) | TSP weight (kg/ ha) |
3 | 1300 | 30 | 30 |
4 | 1736 | 40 | 40
|
Principal inventor
- N. Sirisena, Senior Soil Scientist, Rice Research and Development Institute, Bathalagoda
Co-inventor
- W.M.U.K. Rathnayaka, Assistant Director of Agriculture (Research), Rice Research and Development Institute, Bathalagoda
Collaborators - W.M.N. Wanninayake (AI), Rice Research and Development Institute, Bathalagoda
- D.M.N. Dassanayake, (AI), Rice Research and Development Institute, Bathalagoda
- H.A.C.A. Kumarasinghe (PA), Rice Research and Development Institute, Bathalagoda