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INTRODUCTION

INTRODUCTION. Kenya is a food insecure Economy reliant on rain-fed agriculture(by a factor of 1.6) Key intervention: irrigation Irrigation challenged by water scarcity, low input productivity, high production costs

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INTRODUCTION

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  1. INTRODUCTION • Kenya is a food insecure • Economy reliant on rain-fed agriculture(by a factor of 1.6) • Key intervention: irrigation • Irrigation challenged by water scarcity, low input productivity, high production costs • Need to develop resource-efficient (resource-saving) technologies e.g. SRI and UDP in rice cultivation

  2. PROBLEM STATEMENT • Rice cultivation faces water scarcity and high production costs • Need to reduce use of rice water and production inputs • SRI saved irrigation water by approx. 30% and increased yield by nearly 30%; UDP saved fertilizer use by approx. 50% and increased yield by nearly 20% in rice • Is there a possible synergy from a combination of SRI and UDP? No trials have been conducted

  3. OBJECTIVE To evaluate the effectiveness of combining SRI and UDP practices on growth and yield of lowland rice Varieties: • Evaluate performance of different lowland rice varieties under SRI/UDP • Determine optimal spacing for the test varieties under SRI and UDP

  4. METHODS • Trial site MIAD (latitudes 37°13’E and 37°30’E, longitudes 0°32’S and 0°46’S and altitude of 1195 m a.s.l.) • RCBD with split-split plots (USG as main plot, varieties as sub-plots and spacing as sub-sub-plots) with three replicates • Fertilizers: 2.7 g USG, 1.8 g USG, standard practice (SA) • Rice varieties: Basmati 370, IR 2793, BW 196 • Spacing levels: 20cmx20cm, 25cmx25cm, 30cmx30cm

  5. DATA COLLECTION • Soil sampling at start and end of the experiment • Rice growth data: plant height, total tillers, productive tillers, • Rice yield data: panicle length, total and filled grains, 1000-grain weight, yield

  6. DATA ANALYSIS Analysis using SAS program (SAS institute,2002)

  7. RESULTS- final plant height IR2793 BW 196 Basmati 370

  8. RESULTS – total tillers Basmati 370 IR 2793 BW 196

  9. RESULTS- productive tillers Basmati 370 IR 2793 BW 196

  10. RESULTS – panicle length Basmati 370 IR 2793 BW 196

  11. RESULTS – total grains Basmati 370 IR 2793 BW 196

  12. RESULTS – filled grains Basmati 370 IR 2793 BW 196

  13. RESULTS – 1000-g wt Basmati 370 IR 2793 BW 196

  14. RESULTS - yield IR 2793 Basmati 370 BW 196

  15. DISCUSSION • No significant difference in final plant height, total and productive tillers, panicle length, total and filled grains, 1000-grain weight and yield for all the varieties under the respective treatments • These results confirm observation made in the previous trial

  16. CONCLUSION • On the basis of these results a combination of SRI and UDP techniques does not directly change the final plant height, total and productive tillers, panicle length, total and filled grains, 1000-grain weight as well as yield

  17. RECOMMENDATION • Conduct economic (cost/benefit) analysis of SRI-UDP compared as to conventional

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