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Some chemical properties of the potassium sources
| Potassium sources | Chemical properties | Macro nutrients (g kg− 1) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Total | Available | ||||||||
| pH (Susp. 1:2.5 soil-water) | ECe (1:1 dSm− 1) | Organic matter (g kg− 1) | N | P | K | N | P | K | |
| Filter Cake (FC) | 7.55 | 9.76 | 645.60 | 19.10 | 15.90 | 20.30 | 3.36 | 2.80 | 3.62 |
| Feldspar (FD) | 9.04 | 8.02 | 50.00 | 1.44 | |||||
