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RE: [AGA Member] feeding N at roots

A glaring mistake below:

> Within the roots, toxic ammonia is converted to amides or
> ureides prior to entering the vascular system of the plant where it is
> moved up into the shoots where it is again converted to amino acids or
> to ammonia to build simple sugars, complex proteins or finally into
> cellulose & lignin, the structural building material of
> plants.

Nitrogen is not a component of simple sugars although its a key
ingredient of all proteins & is involved in virtually all biochemical
activities as a constituent of enzymes. Please excuse the


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