We need phosphorus to grow our food, but we're running out. We've known for 100 years that depletion is imminent. Now is the ...

Learn how nitrogen, phosphorus, and potassium—the ‘big three’ nutrients—impact plant growth and what fertilizer bag numbers ...

President Trump’s plan to impose a 100 percent tariff on Russian goods could raise the cost of urea, a key fertilizer in corn and other row crops.

The Oklahoma attorney general proposes banning use of poultry litter as fertilizer in soils when tests show ample phosphorus ...