| 1 | Chenna reddy | Mini Lab | | | |
| 2 | Fertilizer Quality Control Laboratory,Nellore | Soil Testing Laboratories | | | |
| 3 | Mobile Soil Testing Laboratories,Nellore | Soil Testing Laboratories | | | |
| 4 | Radha | Mini Lab | | | |
| 5 | SK.Jahir | Mini Lab | | | |
| 6 | Soil Testing Laboratory,Nellore | Soil Testing Laboratories | | | |
| 7 | V.Subbaiah | Mini Lab | | | |