| Pepper Nutrient Sufficiency Ranges | ||||||||||||
| Plant Part | Time of Sampling | N | P | K | Ca | Mg | S | Fe | Mn | Zn | B | Cu |
| Percent (%) | Parts per Million (ppm) | |||||||||||
| Most recently mature leaf |
Prior to blossoming | 4-5 | 0.3-0.5 | 5-6 | 0.9-1.5 | 0.35-0.6 | 0.3-0.6 | 30-150 | 30-100 | 25-80 | 20-50 | 5-10 |
| First blossom opens | 3-5 | 0.3-0.5 | 2.5-5 | 0.9-1.5 | 0.3-0.5 | 0.3-0.6 | ||||||
| Early fruit set | 2.9-4 | 0.25-0.4 | 2.5-4 | 1-1.5 | 0.3-0.4 | 0.3-0.4 | ||||||
| Early harvest | 2.5-3 | 0.2-0.4 | 2-3 | 1-1.5 | 0.3-0.4 | 0.3-0.4 | ||||||
| Adapted from Maynard, D.N., and G.J. Hochmuth.2007. KnottŐs Handbook for Vegetable Growers, 5th Edition.John Wiley & Sons, Inc. New York | ||||||||||||