N, P and K are standard inputs on farms across the U.S., but new scientific understandings can make a huge difference their efficient use. Phosphorus is fundamental to everything in the plant. It facilitates the transfer of sunlight energy to chemical energy that leads to plant growth.A lot of phosphorus applied in fields gets tied up and never makes it to the plant. This inefficiency is a growing concern on efficiency and environmental fronts. Redox Lead Agronomist John Kelly...