Conservation agriculture and sri

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Conservation agriculture and sri

  1. 1. CONSERVATION AGRICULTURE PRINCIPLES in SRI Prof. P. K. Roul, Associate Director of Research Orissa University of Agriculture and Technology, BhubaneswarORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  2. 2. ObjectivesA. Introduce the concept of Conservation Agriculture- as one NRM DimensionB. Share the experience of CAPs with Tribal Farmers of Kendujhar in OdishaC. Correlate the SRI practices with CA principles ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  3. 3. What is conservation agriculture?A production system that:a) Has minimum soil disturbanceb) Practices suitable crop rotationsc) Keeps the soil covered with plant residues/ residue recycling ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  4. 4. Correlating the SRI practices with Natural Resource Management & Conservation Agriculture Principles ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  5. 5. Natural Resources Land Water Biodiversity (Flora & Fauna) ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  6. 6. Soil degradation vrs Soil conservation processes for Soil productivity Soil Soil conservation degradation practices processes •Proper tillage - Soil erosion •Residue• • • • • • • • • + Nutrient runoff management Water logging Soil •Crop rotation Desertification Productivity •Improved drainage Acidification •Water conservation Organic matter loss •Terracing Compaction •Contour farming Crusting •Organic fertilizer Salinization ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  7. 7. Proper tillage Less Tillage X ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  8. 8. Residuemanagement ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  9. 9. Crop rotation Early Harvest Better soil structure under saturation Intense microbial (Rhizobium) activity Further scope of crop residue addition ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  10. 10. LESS METHANE EMISSION:Improved drainage A large fraction of methane is produced in rice soils. More micro/macro- organisms ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  11. 11. Water conservation Water becoming a scarce and costly input.  Rice alone consumes 70% of the water used in agriculture.  Conventional rice requires 5000 liters of water for producing 1 kg of rice (Bhuiyan et al., 1995, IRRI).  The share of water for agriculture drastically go down, as demand for domestic and industrial sector is ever increasing.  Experimental results revealed that on an average 53% less irrigation water and 28% higher yield was realized in SRI farms than CRC farms. (Roul and Mishra., 2008, Bhubaneswar). ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  12. 12. Population projection and per capita water availability 2500 2209 2500 1820 Per caita water availability 2000 1700 2000Projected Population 1500 1340 1500 (Million) 1140 (m3) 1000 1000 1000 500 500 0 0 1991 2001 Stress 2025 2050 Scarcity Condition condition Year Per capita availability Population (million) ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  13. 13. OrganicNutrition SRI Focuses on Organics ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  14. 14. OrganicNutrition SRI Focuses on Organics ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  15. 15. Biodiversity Microbial Diversity Crop Diversity Genetic DiversityMicroorganism Conventional SRITotal bacteria 88 x 106 105 x 106Azospirillum 8 x 105 31 x 105Azotobacter 39 x 103 66 x 103Phosphobacteri 33 x 103 59 x 103aCompiled by: T.M. Thiyagarajan ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  16. 16. CONCLUSIONSWe should not judge a technology only from where it is todayI feel we are at the beginning of a long and exciting journeyThe quality of future hinges on the decisions of todaySRI is definitely a sustainable practice, having ability to increaseproductivity by input optimisation and agro-ecosystem conservation ORISSA UNIVERSITY OF AGRICULTURE AND TECHNOLOGY, BHUBANESWAR
  17. 17. Thanks…..

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