Correct Answer - Option 4 : All of the above
Explanation:
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FERTILIZERS :
- Fertilizers are chemical compounds that are applied to crops in order to improve their production.
- Farmers use these to increase crop yield.
- The fertilizers provide the nutrients that plants need, such as nitrogen, potassium, and phosphorus.
- Fertilizers can be obtained from natural as well as synthetic sources.
- Due to their increased demands, they are produced synthetically in factories.
- Nitrogen, Calcium oxide (CaO), and Calcium cyanamide (CaNCN) are used as fertilizers.
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NITROGEN |
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Ammonia (NH3) developed by the Haber-Bosch process is used to make nitrogen fertilizers.
- Many other nitrogen fertilizers, such as anhydrous ammonium nitrate (NH4NO3) and urea (CO(NH2)2), use this ammonia as a feedstock.
- Nitrogen fertilizers contain nitrogen, which is needed for crop production.
- Nitrogen is the primary component of chlorophyll, which helps to maintain equilibrium during the photosynthesis process.
- It is also a component of plant amino acids and protein.
- Nitrogen fertilizers increase agricultural product production and quality.
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CALCIUM OXIDE
(CaO)
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Agricultural lime is a soil additive produced from pulverized limestone or chalk.
- It is also known as aglime, agricultural limestone, garden lime, or liming.
- Calcium carbonate is the main active ingredient.
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Calcium oxide is one of the additional chemicals that are present depending on the mineral source.
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CALCIUM CYANAMIDE
(CaNCN)
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- Calcium cyanamide is primarily used as a fertilizer in agriculture.
- When it comes into contact with water, it decomposes and releases ammonia, hence providing plants the form of ammonia that is usable for them.
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As, all three - Nitrogen, Calcium oxide (CaO), and Calcium cyanamide (CaNCN) - are used as fertilizers.
