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 and ...

WEST LAFAYETTE, Ind. - With fertilizer prices the highest they've ever been, the most important thing row crop growers can do is take a soil sample and have it analyzed, said Purdue University ...

Despite being only a few nanometers in size, they are of fundamental importance for biological processes: Ion channels allow essential ions such as potassium and sodium to enter and leave our cells.

Do only potassium ions pass through the selectivity filter of a potassium channel, or are there water molecules between the ions? This question has been a source of controversy for years. Researchers ...