What Symbol In Fertilizer Is Phosphorus

Question

The spots appear as orange rust which subsequently develop holes. I have removed leaves as the spots appear but it spreads to other parts of the plant. Thank you for any advice you can give me. Sue

Answer 1

The symbol for phosphorus is "P". It will be the middle number in the NPK value.

Unfortunately, your photo did not come through, and the type of plant wasn't mentioned. This will make it difficult to diagnose any issues, as many plants will exhibit symptoms, differently.

In the meantime, these articles will help you to understand NPK values and phosphorous deficiencies:

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/fertilizer-numbers-npk.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/test-soil-for-pests-and-diseases.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/making-sure-soil-drains-well.htm