Table 1.
Synthesis conditions of root targeted delivery vehicles (RTDV)
| Sample | Fertilizer loading (% of full dose) | Fertilizer loading (wt%) | Drying (hours) |
|---|---|---|---|
| RTDV 1 a | 22 | 20 | 0 |
| RTDV 2 a | 33 | 30 | 0 |
| RTDV 3 a | 44 | 40 | 0 |
| RTDV 4 a | 22 | 20 | 24 |
| RTDV 5 a | 22 | 20 | 48 |
| RTDV 6 a | 100 | 92 | 0 |
| RTDV 7 a | 100 | 92 | 24 |
| RTDV 8 a | 100 | 92 | 48 |
| RTDV 9 a | 44 | 40 | 24 |
| RTDV 10 b | 44 | 40 | 0 |
| RTDV 11 c | 44 | 40 | 0 |
a refers to devices synthesized with the method detailed in RTDV synthesis above, b refers to devices synthesized while heating the crosslinking solution to 40°C as detailed in alternative RTDV synthesis methods below, c refers to devices synthesized using elevated levels of iron salts as detailed in alternative RTDV synthesis methods.