P (hosphorus)
K (potassium)
Ca (lcium)
Mg (magnesium)
Zn (zinc)
Cu (copper)
Mo (lybdenum)
Although it is toxic (click here) in anything other than small quantities, molybdenum is an essential element for animals and plants.
There are about 50 different enzymes used by plants and animals that contain molybdenum. One of these is nitrogenase, found in nitrogen-fixing bacteria that make nitrogen from the air available to plants. Leguminous plants have root nodules that contain these nitrogen-fixing bacteria.
B (oron)
