| 1 | CTCRI SOIL SCIENCE LAB | Soil Testing Laboratories | | | 0471-2598551 |
| 2 | Central Soil Analytical Laboratory, | Soil Testing Laboratories | | | 0471-2541776 |
| 3 | Central Soil Analytical Laboratory,Parottukonam | Soil Testing Laboratories | | | |
| 4 | Central Soil Analytical laboratory ,Thiruvananthap | Soil Testing Laboratories | | | 0471-2541776 |
| 5 | Central Soil Anlaytical Laboratory, Thiruvananthap | Soil Testing Laboratories | | | 0471-2541776 |
| 6 | Chief Soil Chemist,Central Soil and Plant Health C | Soil Testing Laboratories | | | |
| 7 | District Soil Testing Laboratory,Parottukonam | Soil Testing Laboratories | | | |
| 8 | DistrictSoil Testing Laboratory Thiruvananthapuram | Soil Testing Laboratories | | | 0471-2533044 |
| 9 | Fertilizer Quality Control Laboratory,Parottukonam | Soil Testing Laboratories | | | |
| 10 | Mobile Soil Testing Lab ,Parottukonam | Soil Testing Laboratories | | | |
| 11 | Mobile Soil Testing Laboratory,Parottukonam | Soil Testing Laboratories | | | |
| 12 | Mobile soil testing laboratory Thiruvananthapuram | Soil Testing Laboratories | | | 0471-2530622 |
| 13 | State Boifertilizer Laboratory,Parottukonam | Soil Testing Laboratories | | | |