- Address : Bathalagoda, Ibbagamuwa, Sri Lanka
- E- Mail : rrdi@doa.gov.lk
- Telephone : +94 372 258561
- Fax : +94 372 259881
TECHNOLOGIES
Soil Science Division - Soil test kit-based P & K fertilizer application and correction of soil pH
Based on the soil category of each parameter select the requirement of lime. P and K fertilizer using booklet, soil doctor application or the table below
Lime, P and K fertilizer recommendation based on soil category
Lime | TSP | MOP | |
Low | 1250 kg/ha | 55 kg/ha | 60 kg/ha |
Medium | No | 30 kg/ha | 40 kg/ha |
High | No | No | No |
- Collect representative soil samples from the paddy field, air dry and analysis using soil testing kit.
- Compare the colour differences as low, medium and high as mentioned above and select the lime, P and K fertilizer requirement using the booklet or the soil doctor application
Benifits
- Quick and low-cost method to get soil pH, P and K status of soil.
- Alternative to laboratory soil test-based fertilizer recommendation
Principal inventor
- N. Sirisena, Senior Soil Scientist, Rice Research and Development Institute, Bathalagoda
Co-inventors
- M.U.K. Rathnayaka, Assistant Director of Agriculture (Research), Rice Research and Development Institute, Bathalagoda
- Rupasinghe, Assistant Director of Agriculture (Research), Regional Agriculture Research and Development Centre, Bombuweala
Collaborators
- K. Karunarathne (TA), Rice Research and Development Institute, Bathalagoda
- A.D.I. Maduroshika (RA), Regional Agriculture Research and Development Centre, Bombuweala