Ademir Calegari [email_address] Iapar, Brazil Conservation Agriculture the Brazilian Experience
Brazil: 8.513 Km 2 Brazil Savanna area: 210 Million hectares of Potential Agriculture Brasilia(DF) Amazonas Roraima North ...
TERRIBLE EROSION IN PARANA STATE IN 1970s and 1980s
GOODBYE SOIL, GOODBYE LIVELIHOODS
<ul><li>Erosion ?  </li></ul><ul><li>Includes loss of water, and nutrients (N, P, K, organic carbon) </li></ul>
Fonte: EMATER, PR, 2000 Potassium
The No-tillage System Permanent soil cover Control of weeds (Attention to  crop rotation) Harvest Rolling down cover crop ...
Peanuts pea potatoes rice
Water Oxigen
Crop residues effect (above ground) Active aggregation zone Active decomposition zone 0 - 5 cm New structure regrow
Let the roots and soil flora and fauna do the work
Soil temperature stuble 30  C Bare soil temperature 55 C
 
Black oat + vetch Mixing cover crops increases diversity of soil nutrients and fodder
 
      Hairy Vetch – Equivalent to 120 kg N ha
Intercropping gives two chances for a harvest Sorghum and cowpea - Swaziland   Maize and groundnut - Kenya
Cowpea  and pineapple - Mozambique Crotalaria juncea  intercropped with sorghum or maize. It is fast growing, suppresses w...
 
 
Corn intercropped with legume cover crop
Rice +  Calopogonium mucunoides
Cover crop management using the knife roller
No-tillage for animal traction
No-Till System-  53 t/ha of Cassava Roots
Conservation agriculture brings higher levels of organic matter, retains moisture better Conventional systems lead to low ...
Conventional No-till
What about the weeds? Conventional tillage Irrigated 3-4 times/week Weeding 8-10 times Labour input 45 days/ha Yield 23 to...
CARBON SEQUESTRATION (0,00-0,20m)  after 19 years –  Pato Branco, PR.  0.00 + 0.25 + 0.50 + 0.75 + 1.00 SOC (Mg ha -1  yea...
MUCUNA nodules fix nitrogen
 
Implications <ul><li>Less labour and farm power </li></ul><ul><li>up to 60% fuel savings </li></ul><ul><li>up to 50% savin...
Sesbania  sp. indigenous legume – previously considered a weed by locals - is a great cover crop for rice in Estaquinha (B...
Nature says  Thanks!
Upcoming SlideShare
Loading in...5
×

Day 3 conservation agriculture field workshop project breadbasket calegari, iapar, july 12, 2011

10,611

Published on

Lots of great background info on conservation agriculture including use of cover crops and carbon sequestration rates. Delivered to Project Breadbasket conservation agriculture field workshop in Parana State Brazil by Ademir Calegari, PhD, IAPAR, on July 12, 2011 in Pato Branco.

Published in: Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
10,611
On Slideshare
0
From Embeds
0
Number of Embeds
28
Actions
Shares
0
Downloads
28
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Day 3 conservation agriculture field workshop project breadbasket calegari, iapar, july 12, 2011

  1. 1. Ademir Calegari [email_address] Iapar, Brazil Conservation Agriculture the Brazilian Experience
  2. 2. Brazil: 8.513 Km 2 Brazil Savanna area: 210 Million hectares of Potential Agriculture Brasilia(DF) Amazonas Roraima North Northeast Center-West Southeast South
  3. 3. TERRIBLE EROSION IN PARANA STATE IN 1970s and 1980s
  4. 4. GOODBYE SOIL, GOODBYE LIVELIHOODS
  5. 5. <ul><li>Erosion ? </li></ul><ul><li>Includes loss of water, and nutrients (N, P, K, organic carbon) </li></ul>
  6. 6. Fonte: EMATER, PR, 2000 Potassium
  7. 7. The No-tillage System Permanent soil cover Control of weeds (Attention to crop rotation) Harvest Rolling down cover crop Cover crop
  8. 8. Peanuts pea potatoes rice
  9. 9. Water Oxigen
  10. 10. Crop residues effect (above ground) Active aggregation zone Active decomposition zone 0 - 5 cm New structure regrow
  11. 11. Let the roots and soil flora and fauna do the work
  12. 12. Soil temperature stuble 30 C Bare soil temperature 55 C
  13. 14. Black oat + vetch Mixing cover crops increases diversity of soil nutrients and fodder
  14. 16.       Hairy Vetch – Equivalent to 120 kg N ha
  15. 17. Intercropping gives two chances for a harvest Sorghum and cowpea - Swaziland Maize and groundnut - Kenya
  16. 18. Cowpea and pineapple - Mozambique Crotalaria juncea intercropped with sorghum or maize. It is fast growing, suppresses weeds, reduces nematode populations and improves soil properties.
  17. 21. Corn intercropped with legume cover crop
  18. 22. Rice + Calopogonium mucunoides
  19. 23. Cover crop management using the knife roller
  20. 24. No-tillage for animal traction
  21. 25. No-Till System- 53 t/ha of Cassava Roots
  22. 26. Conservation agriculture brings higher levels of organic matter, retains moisture better Conventional systems lead to low organic matter & loss of water... 
  23. 27. Conventional No-till
  24. 28. What about the weeds? Conventional tillage Irrigated 3-4 times/week Weeding 8-10 times Labour input 45 days/ha Yield 23 tons of bulbs Conservation Agriculture Irrigated only once a week Weeding not necessary Labour input 7 days/ha Yield 39 tons of bulbs Austrian Cooperation Project in Mozambique – Sofala Province
  25. 29. CARBON SEQUESTRATION (0,00-0,20m) after 19 years – Pato Branco, PR. 0.00 + 0.25 + 0.50 + 0.75 + 1.00 SOC (Mg ha -1 year -1 ) + 1,24 t/ha/year No-Till
  26. 30. MUCUNA nodules fix nitrogen
  27. 32. Implications <ul><li>Less labour and farm power </li></ul><ul><li>up to 60% fuel savings </li></ul><ul><li>up to 50% savings in tractors </li></ul><ul><li>up to 40% savings in tractor size </li></ul><ul><li>up to 3 times longer tractorlife </li></ul><ul><li>reduction in machinery capital </li></ul>The consequent application of these concepts has following implications: Source: FAO
  28. 33. Sesbania sp. indigenous legume – previously considered a weed by locals - is a great cover crop for rice in Estaquinha (Búzi) , Mozambique
  29. 34. Nature says Thanks!
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×