Nitrogenous Fertilizers
Nitrogenous fertilizers are synthetic or organic compounds containing nitrogen (N) in forms readily available to plants, primarily used to enhance soil fertility and promote vigorous vegetative growth in crops.
These fertilizers provide the essential nutrient nitrogen - a fundamental component of amino acids, proteins, chlorophyll, and nucleic acids that plants need for photosynthesis and growth.
Types of Nitrogenous Fertilizer
Urea Fertilizer - CO(NH₂)₂
46% nitrogenMost concentrated solid nitrogen source with neutral pH
Ammonium Nitrate Fertilizer - NH₄NO₃
33.5% nitrogenContains both ammonium and nitrate nitrogen forms
Ammonium Sulfate Fertilizer - (NH₄)₂SO₄
21% nitrogenProvides both nitrogen and sulfur, with acidifying effect
Anhydrous Ammonia Fertilizer - NH₃
82% nitrogenHighest nitrogen content fertilizer requiring special handling
Agricultural Importance
Nitrogenous fertilizers play a critical role in modern agriculture by:
- Increasing crop yields by 30-50% in most agricultural systems
- Correcting nitrogen deficiencies in soils
- Promoting rapid vegetative growth and lush green foliage
- Enhancing protein content in food crops
- Supporting intensive farming practices to meet global food demands
Application Considerations
Effective use requires understanding of:
- Timing: Match application to crop growth stages
- Placement: Proper soil incorporation to prevent losses
- Dosage: Based on soil tests and crop requirements
- Environmental factors: Temperature, moisture, and soil type
- Safety measures: Especially for anhydrous ammonia
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