fertilizer: Media

agriculture

Videos

The importance of nitrogen and phosphorus in ecosystems
An overview of the nitrogen and phosphorus cycles in the biosphere.
Video: Encyclopædia Britannica, Inc.

Images

fertilizer
A tractor spreading synthetic fertilizer.
© fotokostic—iStock/Getty Images Plus
chlorosis
A young corn plant with chlorosis (left) contrasted with a healthy young corn plant...
Royalbroil
ammonium nitrate
Structure of the chemical compound ammonium nitrate, from which fertilizer is produced.
Encyclopædia Britannica, Inc.
manure
Manure, a mixture of animal excrement and straw, piled in a field in France.
© laurine45/stock.adobe.com
nitrogen fixation
Close-up view of nitrogen nodules on fava bean (Vicia faba) roots. Fava...
© NNehring—iStock/Getty Images
compost
Farmer managing a compost pile in France. Compost adds rich organic matter and beneficial...
© Stéphane Bidouze/stock.adobe.com
fertilizer
Farmers shoveling fertilizer.
Encyclopædia Britannica, Inc.
fertilizer application
Aerial view of a tractor towing a fertilizer applicator. The applicator is spraying...
© BanksPhotos—E+/Getty Images
composting
Cross section of a compost pile.
Encyclopædia Britannica, Inc.
fertilizer products and their uses
Figure 1: Major interactions of fertilizer products and their uses.
Encyclopædia Britannica, Inc.