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Sustainable agriculture for sustainable future


Published on

Friday Sharing Program of AgriYouthNepal
Date: 3rd March 2015
Presenter: Dhiraj Bhatta
Agriculture and Forestry University (AFU)

Published in: Food
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Sustainable agriculture for sustainable future

  1. 1. Sustainable Agriculture For Sustainable Future
  2. 2. How far have we come? GREEN REVOLUTION: • Crop improvement • Mechanization • Inorganic source of nutrients • Chemical methods of plant protection
  4. 4. SOIL Soil compaction Soil erosion Degradation of soil fertility
  5. 5. ECOSYSTEM Bio magnification
  6. 6. ATMOSPHERE Green house effects Global warming Climate change
  7. 7. WATER BODIES Eutrophication
  8. 8. ARE THEY SAFE…?
  9. 9. ENERGY How long will they support us?
  10. 10. THEN WHAT….? IS THERE ANY ALTERNATIVE…? SUSTAINABLE AGRICULTURE (Gordon McClymont) The act of farming using principles of ecology An integrated system of plant and animal production practices having a site specific application and that will last over the long time.
  11. 11. AIMS…. Environmental quality Eco friendly Rational use of resources Economic viability FINALLY To satisfy present human needs without compromising the base for the future
  12. 12. WHAT ARE ITS DIFFERENT APPROACHES? Organic farming Integrated farming Permaculture Ecofarming
  13. 13. HOW IT CAN BE REALIZED…? SOIL/LAND Conservation tillage(no till farming, minimum till) Crop- rotation(long term) Biochar application
  14. 14. PLANT NUTRITION • Organic source(FYM, compost, vermi compost…) • Green manures • Bio fertilizers • N-fixing gene
  15. 15. PLANT PROTECTION MEASURES • Bio insecticide 1. Virus: Nuclear Polyhedrosis virus(NPV): hairy caterpillar Orychtes Baculo virus(OPV):rhinoceros beetle 2. Bacteria: B. thuringiensis 3. Fungi: Entomophora, Verticillium, Aspergillus
  16. 16. 4. Protozoa: Neodiprione 5. Nematodes: Neoaplectana glaseri - Japanese beetle 6. Insects: Tiger beetle preys on rice earhead bug, lady bird beetle feeds on aphids
  17. 17. • Bio pesticides 1.Agrobacterium radiobacter control crown gull of apple caused by A. tumefaciens 2. Erwinia herbicola controls citrus canker caused by Xanthomonas citri 3. Trichoderma spp to control foot rot of ground nut, wilt of brinjal and aerial blight of soyabean
  18. 18. • Soil solarization • Disease and pest resistant varieties • Biochar application • Plants ( neem, onion, garlic etc)
  19. 19. WEED MANAGEMENT • Bio herbicide 1. Cactus feeding moth (Cactobolustis cactorum) to control prickly pear cactus 2. Cecidochorea utilis to control Eupatorium spp 3. Phytophthora
  20. 20. • Cultural practices • Mulching • Alleopathy
  21. 21. WATER MANAGEMENT • Drip irrigation • Sprinkler irrigation • Rain water harvesting • Mulching • Drought tolerant varieties • Drainage
  22. 22. FARM POWER/ENERGY • Solar power • Biogas • Animal power
  23. 23. CHALLANGES • Effectiveness • Economic viability • Productivity increment Can it feed the increasing number of mouths?
  25. 25. Thank You