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Ram Dhan Jat CLIFF Workshop


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PhD research presentation at the workshop of the Climate Food and Farming Network, Dec. 2-4 at Aarhus University, Foulum. The Climate Food and Farming Network is an initiative of Copenhagen U., Aarhus U., and the CGIAR Research Program on Climate Change, Agriculture and Food Security.

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Ram Dhan Jat CLIFF Workshop

  1. 1. PROJECT Evaluation of Precision-Conservation Agriculture based practices for improved resource use efficiency and carbon footprints in maize-wheat cropping system Ram Dhan Jat Enl. No. 2011A9D CCS HAU, Hisar, India Location: Taraori, Karnal, India in collaboration with CIMMYT Year of start: Kharif 2012
  3. 3. Why Conservation agriculture…. Factors of concern in Indo-Gangetic Plains (IGP) of India for cereal system  The inefficient use of inputs (fertilizer, water, labor)  Increasing scarcity of resources, energy and labor  Changing climate  Socioeconomic changes (urbanization, labor migration, preference of nonagricultural work, concerns about farm‐related pollution, etc.).
  4. 4. Why MWCS………… RW Cropping System (13.5 mha) Caused many second generation problems in IGP land degradation Declining underground water table Environmental pollution Higher production cost Receding total factor productivity Labor, water and energy crises
  5. 5. OBJECTIVES 1. To study the effect of precision conservation agriculture based management practices on productivity, profitability and resource use efficiency in maize-wheat cropping system 2. To record crop growth pattern under improved management scenario 3. To study the effect of tillage, residue management, legumes and nutrient management practices on carbon footprints in conventional vis-à-vis conservation agriculture based management practices
  6. 6. Treatment details A. Main-plots (tillage, residue, legume) 1.CT- Remove/burn (W)-Remove (M)-Green gram [Conventional/Farmers practice] 2. CT- Incorporate wheat stubbles-Incorporate 50 % maize + Green gram [Improve over FP] 3. PB-Retain stubble (W)-retain 50% (M)-Green gram [Partial CA] 4. PB- Retain stubble (W)-retain 50% (M) + Green gram (retain all residue) [Full CA] B. Sub-plot (Nutrient management) 1. Farmer fertilizer practice [FP] 2. State recommendations [SR] 3. Site specific nutrient management [SSNM]
  7. 7. Methodology Crop/plant related parameters • Growth attributes • Yield attributes and yield • Plant chemical analysis Soil related parameters • Soil physical properties: Texture, BD, HC, IR and soil aggregation before and after the expt. • Soil chemical properties: pH, EC, OC, available NPK. • Nutrient balance sheets Irrigation water parameters • Soil moisture content and potential • Water use efficiency • Water productivity Carbon sustainability index Resource use efficiency • Carbon input • Nutrient use efficiency • Carbon output • Energy use efficiency • Water use efficiency • Economic efficiency
  8. 8. Results Crop productivity FP 16000 SRF SSNM (NE) 14000 12000 10000 8000 6000 4000 2000 0 Maize Wheat CT (FP) - MW Maize Wheat MW Maize Wheat MW Maize Wheat MW System System System System CT (Imp FP) Partial CA Full CA During first year, tillage, residue & legume had non-significant effect on grain yield 1.46 and 0.47 t/ha/year of higher yield was observed through NE system (SSNM) over to FFP and SRF in MW system.
  9. 9. Net returns (INR/ha) of MWCS 120000 FP SRF SSNM (NE) 100000 80000 60000 40000 20000 0 Maize Wheat CT (FP) - MW System Maize Wheat CT (Imp FP) MW System Maize Wheat Partial CA MW System Maize Wheat MW System Full CA NR was improved by INR 16561 and 14950/ha/year with full and partial CA respectively over farmer’s management. Fertilizer management by NE (SSNM) under full CA helped in improving the NR by INR 22416 and 13035/ha/year over FFP and SRF, respectively.
  10. 10. Conclusion - CA based practices with precise nutrient management under MWCS proved to be more productive and remunerative than farmers practices Thank You