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Evaluation of Effect of Combining SRI and UDP Practices on Performance of Lowland Rice in Kenya

Evaluation of Effect of Combining SRI and UDP Practices on Performance of Lowland Rice in Kenya. Wanjogu R.K, Machungo C, Owilla B. P, Njoka J.J. NIB RESEARCH WORKSHOP 13 th & 14 th June. System of Rice Intensification (SRI).

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Evaluation of Effect of Combining SRI and UDP Practices on Performance of Lowland Rice in Kenya

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  1. Evaluation of Effect of Combining SRI and UDP Practices on Performance of Lowland Rice in Kenya Wanjogu R.K, Machungo C, Owilla B. P, Njoka J.J. NIB RESEARCH WORKSHOP 13th & 14th June

  2. System of Rice Intensification (SRI) • SRI - A set of farming practices developed to increase the productivity of land and water, as well as other resources. • SRI is based on intermittent irrigation, developing healthy, large and deep root systems that can better tolerate drought, water-logging and lodging.

  3. SRI IN PRACTICE (PRINCIPLES) 1. Seedlings transplanted at a much younger age. (8-12 DAS) 2. Transplanting: Single seedling/ Hill

  4. SRI Principles Cont. 3.Wider Spacing in a square pattern. (25 by 25 cm) 4.Intermittent water application to create wet and dry soil conditions Vs .flood irrigation.

  5. Pilot Project SRI Field Conventional Field Pioneer farmer in the field

  6. UREA DEEP PLACEMENT (UDP)

  7. Nitrogen balance for broadcasted N fertilizer in rice field

  8. UREA DEEP PLACEMENT- UDP

  9. OBJECTIVE • Evaluate the effectiveness of combining SRI and UDP Practices on growth and yield of lowland rice. Specific Objective • Evaluate the performance of different varieties under SRI/UDP combination • Determine the optimal spacing for the test varieties under SRI and UDP system

  10. Methodology • Fertilizer treatments • 2.7gram Urea Super Granule • 1.8 gram Urea Super granule • Standard practice- Split application of SA • Varieties • Bas 370, IR 2793, BW 196 • Spacing • 20cm x 20cm : 25cmx25cm: 30cm x 30cm

  11. Experimental Design • Factorial Experiment • Split –Split plot RCB Design • Fertilizer treatment- Main plot • Variety – Sub plot • Spacing – Sub- sub plot Factor Crop Management- As per SRI practice

  12. Field experiment layout

  13. Data Collection • Growth Plant height Tiller counts • Yield parameters Tiller counts at harvest – PT, NPT & TT Panicle data- FG, SG, TG & Sterility 1000 grain weight Yield Kg/Ha 14, 28, 42, 56 , 70 & 84DAT

  14. RESULTS

  15. Plant height (cm) BASMATI 370

  16. Tiller number

  17. BASMATI 370

  18. BASMATI 370

  19. BASMATI 370

  20. IR 2793

  21. IR 2793

  22. IR 2793

  23. BW 196

  24. BW 196

  25. CONCLUSION • The varieties responded differently to the treatments at the different spacings. • However, considering that previous UDP and SRI separate evaluations indicated cost advantage over the conventional method, the study need to be repeated in order to get conclusive findings.

  26. THANKYOU

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