| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Pastinaca sativa | Root | 6.0 | 29.0 | 1.7 | * |
| Persea americana | Fruit | 8.0 | 37.7 | 1.2 | * |
| Petroselinum crispum | Plant | 3.0 | 26.0 | -0.2 | USDA's Ag Handbook 8 and sequelae) |
| Phaseolus lunatus | Seed | 2.3 | 16.0 | -0.1 | * |
| Phaseolus vulgaris | Seed | 9.0 | 10.0 | -0.7 | USDA's Ag Handbook 8 and sequelae) |
| Phaseolus vulgaris | Fruit | 0.9 | 10.0 | -0.5 | USDA's Ag Handbook 8 and sequelae) |
| Phoenix dactylifera | Fruit | 8.0 | 10.0 | -0.5 | USDA's Ag Handbook 8 and sequelae) |
| Pisum sativum | Seed | 1.0 | 5.0 | -1.2 | * |
| Pisum sativum | Fruit | 7.5 | 74.0 | 3.6 | * |
| Portulaca oleracea | Plant | -- | -- | * | |
| Prunus domestica | Fruit | 1.8 | 13.0 | -0.3 | USDA's Ag Handbook 8 and sequelae) |
| Prunus persica | Fruit | 2.0 | 14.0 | -0.3 | * |
| Prunus cerasus | Fruit | 1.0 | 10.0 | -0.5 | * |
| Prunus dulcis | Seed | 4.0 | 5.0 | -1.2 | USDA's Ag Handbook 8 and sequelae) |
| Prunus armeniaca | Fruit | 2.4 | 17.6 | -0.0 | USDA's Ag Handbook 8 and sequelae) |
| Psidium guajava | Fruit | 2.0 | 11.0 | -0.5 | USDA's Ag Handbook 8 and sequelae) |
| Punica granatum | Fruit | 6.0 | 31.0 | 0.8 | USDA's Ag Handbook 8 and sequelae) |
| Pyrus communis | Fruit | 0.7 | 4.0 | -0.9 | * |
| Raphanus sativus | Root | 0.8 | 18.0 | 0.1 | * |
| Rheum rhabarbarum | Pt | 0.8 | 13.3 | -1.0 | * |