This presentation tells about different environmental pollutions and their remediation techniques. It also focuses on the sustainability of agriculture development. I have also discussed the green revolution.

2. Sustainable Agriculture and
Heavy Metals Management
Presented To:
Dr. M. Aown Sammar Raza
Presented By:
Mohammad Danish
M. Sc. (Hons.) Soil Science

4. Green revolution
Crop Improvement
Mechanization
Inorganic source of nutrients
Chemical methods of plant protection

5. LOSSES

6. SUSTAINABLE AGRICULTURE
 An integrated system of plant and animal
production practices having a site-specific
application that will last over the long term
Human
Food and
Fiber needs
Environment
al Quality
Efficient Use
of
Resources
Life of
Farmers and
Society
A i m s

7. APPROACHES
 Organic farming
 Integrated farming
 Permaculture
 Ecofarming

8. ORGANIC FARMING
 a method of crop and livestock production
that involves much more than choosing not
to use pesticides, fertilizers, genetically
modified organisms, antibiotics and growth
hormones.

9. INTEGRATED FARMING
 It is a whole farm management system
which aims to deliver more
sustainable agriculture.

10. PERMACULTURE
 It combines agricultural and forestry
technologies to create more diverse,
productive, profitable, healthy and
sustainable land-use systems

11. ECO-FARMING
 Ecological farming is a pioneering, practical
development which aims to create globally
sustainable land management systems, and
encourages review of the importance of
maintaining biodiversity in food production
and farming end products.

12. PLANT NUTRITION
Organic source(FYM, compost,
vermi compost…)
Green manures
Bio fertilizers
N-fixing gene

13. HEAVY METALS
 Heavy metals are generally defined as
metals with relatively high densities, atomic
weights, or atomic numbers
 Their Concentrations increased by:
 geologic and anthropogenic activities
 mining and smelting of metals, burning of fossil fuels,
use of fertilizers and pesticides in agriculture,
production of batteries and other metal products in
industries, sewage sludge, and municipal waste
disposal

14. TECHNIQUES TO REMEDIATE
 Physical and Chemical measures are
expensive and donot make the soil suitable
for plant growth.
 Biological approach (bioremediation)
encourages the establishment of plants on
polluted soils.

15. BIOREMEDIATION
 The use of organisms (microorganisms
and/or plants) for the treatment of polluted
soils.
 50% to 65% saving than conventional
methods when bioremediation use.

16. CAN BE ACHIEVED THROUGH
By Microbes
By Plants
Combining
Both
• Bacteria
• Phytoremediation
• Mycorrhizal
associations
• PGPR

17. PHYTOREMEDIATION
 An aspect of bioremediation that uses plants
for the treatment of polluted soils.
 There are different mechanisms
 Phytoextraction:
 accumulation of heavy metals in the roots and
shoots of phytoremediation plants.
 Phytostabilization:
 using plants to immobilize metals, thus reducing
their bioavailability via erosion and leaching.

18. CONTI…
 Phytovolatilization:
 plants are used to take up pollutants from the
soil; these pollutants are transformed into volatile
forms and are subsequently transpired into the
atmosphere.