What nutrient does a fertilizer with potash provide?

A fertilizer with potash primarily provides potassium, which is crucial for plant health and development. Potassium plays several vital roles in plants, including regulating water uptake, improving drought resistance, and facilitating the synthesis of proteins and starches. It is also essential for enzyme activation and photosynthesis. Potash, commonly represented as K2O in fertilizers, is a key source of potassium.

In agricultural practices, increasing potassium availability in the soil through potash fertilizers can lead to improved crop yield and quality. This highlights the importance of potassium in overall plant metabolism and growth. Understanding this nutrient's function helps gardeners and farmers to make informed decisions regarding fertilization and soil management strategies.