Fertilizer has staying power
Nitrogen may persist in soil for 80 years, scientists find
LONG-LASTING FERTILIZER Nitrogen fertilizer used on crops such as winter wheat (shown) can remain in soil for decades.
Phil Farnes/Photo Researchers, Inc.
Nitrogen may persist in soil for 80 years, scientists find
LONG-LASTING FERTILIZER Nitrogen fertilizer used on crops such as winter wheat (shown) can remain in soil for decades.
Phil Farnes/Photo Researchers, Inc.