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 13 th & 14 th 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 Pioneer farmer in the field SRI Field Conventional Field

6. UREA DEEP PLACEMENT (UDP)

7. Nitrogen balance for broadcasted N fertilizer in rice field

8. UREA DEEP PLACEMENT- UDP

11. 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

12. 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 12

13. 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

14. Field experiment layout

15. 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

16. RESULTS

17. BASMATI 370 Plant height (cm)

18. Tiller number

19. BASMATI 370

23. IR 2793

27. BW 196

31. 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.

32. THANKYOU THANKYOU