Potassium Deficiency in Plants
The other mobile macronutrient, Potassium, is important for the transportation and synthesis of simple carbohydrates and sugars. It is needed for plants to absorb and transport water, improve cell division and root growth. Additionally, Potassium is needed for Adenosine Triphosphate (ATP) production, a cellular energy measurement.
Potassium Deficiency Symptoms in Plants
Brown, yellowing, or curling leaves can be signs of potassium deficiency. Potassium deficiency can also cause plants to stretch more than usual.
How to Treat Cannabis Potassium Deficiency.
Many growers choose to flush their grow medium first to rule out other deficiency problems or overfeeding. Adding a top layer of chicken manure or foliar spray, or feed rich in Potassium can help. Organic seaweed is a popular option as a foliar.