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  Section: Plant Nutrition » Macronutrients » Nitrogen
 
 
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Nitrogen

 
     
 
Content
Determination of Essentiality
Nitrogen Metabolism and Nitrogenous Constituents in Plants
  Nitrate Assimilation
    - Nitrate Reductase
    - Nitrite Reductase
  Ammonium Assimilation
    - Glutamine Synthetase
    - Glutamate Synthase
    - Glutamic Acid Dehydrogenase
    - Transamination
    - Amidation
  Proteins and Other Nitrogenous Compounds
Diagnosis of Nitrogen Status in Plants
  Symptoms of Deficiency and Excess
  Concentrations of Nitrogen in Plants
    - Concentrations of Nitrogen in Plant Parts
    - Ratios of Concentrations of Nitrogen to Other Nutrients in Plants
Nitrogen in Soils
  Forms of Nitrogen in Soils
    - Organic Nitrogen in Soil
    - Inorganic Nitrogen in Soil
Soil Testing for Nitrogen
  Determinations of Total Nitrogen
  Biological Determinations of Availability Indexes
    - Determination of Inorganic Nitrogen
      - Ammonium
      - Nitrate
      - Amino Sugars
Nitrogen Fertilizers
  Properties and Use of Nitrogen Fertilizers
    - Anhydrous Ammonia: 82% N
    - Aqua Ammonia: 21% N
    - Urea: 46% N
    - Ammonium Nitrate: 34% N
    - Ammonium Sulfate: 21% N
    - Nitrogen Solutions: 28–32% N
    - Ammonium Phosphates: 10–21% N
    - Other Inorganic Nitrogen Fertilizers
    - Organic Nitrogen Fertilizers: 0.2–15% N
References
 



 
     
 
 
     



     
 
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