While it can initially be difficult to tell what nutrients your plants are lacking, soil tests, combined with careful examination of the plant's growth, leaf shape and color, and overall health ...

Others like potassium are added regularly to soils as fertilizer ... Normal Range of CEC Values for Common Color/Texture Soil Groups. CEC in Soil groups Examples meg/100g----- Light colored sands ...

Try not to deplete soil potassium levels. “While potassium doesn’t have as direct of a yield response as nitrogen, it impacts standability, water management and disease resistance,” Ferrie says.

The No. 1 challenge with potassium is to manage the nutrient so that it’s ready to work when it’s needed Potassium’s behavior in the soil sets it apart from other nutrients such as nitrogen ...