Table 3.
Costs for urea, muriate of potash (KCl, 0-0-60), diammonium phosphate (DAP), and zinc sulfate (expressed as percentage of total fertilizer cost) for field-specific nutrient management provided by Rice Crop Manager (RCM) in 178 field trials across two seasons in Odisha, India.
| Fertilizera | Fertilizer cost (% of total) |
||
|---|---|---|---|
| Mean | Minimum | Maximum | |
| Urea | 22 | 16 | 31 |
| MOP | 16 | 10 | 27 |
| DAP | 30 | 15 | 40 |
| Zinc sulfate | 32 | 22 | 44 |
a
Only the trials in which the RCM recommendation used all four sources (urea, MOP, DAP, and zinc sulfate) and no other sources are included.