How can I effectively add potassium to my tomato plants for optimal growth and health?

To effectively add potassium to your tomato plants for optimal growth and health, you can use potassium-rich fertilizers like potassium sulfate or potassium nitrate. These can be applied to the soil around the plants or dissolved in water for foliar feeding. Regularly monitoring the potassium levels in the soil and adjusting the fertilizer application accordingly can help ensure the plants receive the right amount of this essential nutrient.