The most important occurrence in plant nutrition is the process in which the elemental nitrogen of the air is converted into forms of nitrogen that most plants can absorb through their root systems.
(The most important occurrence in plant nutrition; is; the process in which the elemental nitrogen of the air is converted into forms of nitrogen) (the elemental nitrogen of the air; is converted; into forms of nitrogen; L:the process) (forms of nitrogen; can absorb; through their root systems)
The most important occurrence in plant nutrition the elemental nitrogen of the air forms of nitrogen
is is converted can absorb
the process in which the elemental nitrogen of the air is converted into forms of nitrogen
into forms of nitrogen L:the process
through their root systems