Nitrogen Metabolism : Sources of Nitrogen

By
Avinash Darsimbe
Assistant Professor
Department of Botany
Shri Shivaji Science College, Amravati (MS), India

1. B .Sc. III (Sem- V) BOTANY PLANT PHYSIOLOGY AND ECOLOGY   Unit - III: Metabolism and growth 3.1 Nitrogen Metabolism Sources of nitrogen, Symbiotic nitrogen fixation and Role of Nitrate reductase By Avinash Darsimbe Assistant Professor Department of Botany Shri Shivaji Science College, A mravati

2. 3.1 Nitrogen Metabolism- Sources of nitrogen, Symbiotic nitrogen fixation, Role of Nitrate reductase

3. What is Nitrogen ?

4. Nitrogen Facts Nitrogen is a chemical element with the symbol N and atomic number of 7. Under normal conditions nitrogen is a colorless, odorless and tasteless gas. Nitrogen makes up around 78% of the air you breathe. Nitrogen is present in all living things, including the human body and plants.

5. Sources of nitrogen Organic In-organic Sources of nitrogen

6. Organic Sources of Nitrogen Poultry Manure Organic Manure Waste Water Discharge Animal waste Dead and Decay of Plants and Animals Ammonium ( NH4)

7. 1. Nitrate 2. Ammonium In-organic Sources of Nitrogen Crop Fertilizers 1. Nitric acid (HNO3) Atmosphere Rainfall 1. N2 Gas

8. Rainfall

9. Forms of Nitrogen In atmosphere – N2 gas In soils- Nitrogen-oxide (NO) Nitrogen dioxide (NO2) In fertilizer- Ammonia (NH3), Ammonium nitrate (NH4NO3)

10. Plants readily take up and use two forms of soil nitrogen- Ammonia ( NH4+) Nitrate ( No3-) Forms of Nitrogen Uptake by Plants –

11. Factors affecting the uptake of Nitrogen by Plants

12. Functions of Nitrogen Nitrogen is very important for plants because of its functions including: 1. Stimulates the vegetative growth of plants 2.Serves to synthesize amino acids and proteins. 3. Strengthen plants 4.Produce chlorophyll And make leaves green

13. Thank You Any Questions ?