Three of the four liquid nitrogen fertilizers - anhydrous ammonia ... 1. Rates for nitrogen fertilizers fall-applied ahead of corn need to be 3 to 10 percent higher than spring pre-plant applications ...

He added that when new fertilizer was added as anhydrous ammonia to corn, a large shift in the isotopic signal, reflecting the new nitrogen, was recorded in tile drainage water, especially when ...

“The ability to apply fertilizer with the planter is critical to get corn off to a ... to add three liquid systems to the planter. A 2x2 placement adds nitrogen, phosphorus, sulfur and zinc ...