Symptoms of dry mouth syndrome. Dry mouth symptoms may include: saliva that feels thick or stringy. rough, dry tongue. the tongue tending to stick against the roof of the mouth. problems with chewing or swallowing (particularly dry foods such as biscuits) bad breath. mouth ulcers.
Once nitrogen is fixed, it is subject to several chemical reactions which can convert it to different organic or inorganic forms. Mineralization occurs in soil as microorganisms convert organic nitrogen to inorganic forms.
Factors that Determine the Quantity of Nitrogen Supplied by the Soil. 1  The quantity of nitrogen released from the soil organic matter. 2  The quantity of nitrogen released by decomposition of residues of the previous crop. 3  Any nitrogen supplied by previous applications of organic waste. 4  Any nitrogen carried over from previous fertilizer applications.