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.
Nitrogen is available in the atmosphere but must be transformed before a plant can use it. The natural process of microorganisms creating ammonia and then nitrogen in the soil supplies plants steadily with nitrogen as well as the other essential nutrients.t is produced in soil by bacteria. Organisms too small to see in the soil ingest plant and animal material and convert it to ammonia, which is then converted to nitrogen for plants to use as a nutrient.