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0703 Survey of SRI and Other Rice Management Practices on Acid Soils in Prey Veng Provinces


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Presenter: Pin Vannaro

Institution: Maharishi Vedic University/ Royal University of Agriculture

Subject Country: Cambodia

Published in: Technology, Education
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0703 Survey of SRI and Other Rice Management Practices on Acid Soils in Prey Veng Provinces

  2. 2. Project Objective <ul><li>To make an assessment of the differences between CP, BMP and SRI practices in terms of biophysical, economic and social aspects. </li></ul><ul><li>To provide MVU students and staff with practical experience in field survey techniques. </li></ul><ul><li>To conduct a cross-check to discuss with involved farmer, researchers and extension workers. </li></ul>
  3. 3. Project Duration <ul><li>Commencement date : November, 2005 </li></ul><ul><li>Completion date : November, 2006 </li></ul>
  4. 4. Staff and resources <ul><li>Mr. Pin Vannaro </li></ul><ul><li>Mr. Veth Ravy </li></ul><ul><li>Mr. Seing Sokha </li></ul><ul><li>Mr. Chhem Vutha </li></ul><ul><li>Nine Student Numerators </li></ul><ul><li>SRI Research Advisory Group </li></ul>
  5. 5. Collaborating Organisations <ul><li>AusAID </li></ul><ul><li>GTZ/RDP </li></ul><ul><li>SRI Secretariat ( DAALI/MAFF ) </li></ul>
  6. 6. Study Areas Ba Phnom Phreas Sdach Kampong Leave Kampong Trabek Kamchai Mear Prey Veng
  7. 7. Farming Systems Survey <ul><li>System of Rice Intensification ( SRI ) </li></ul><ul><li>Those farmers who have attended SRI training and intend to use SRI practice in coming crops. </li></ul><ul><li>Best Management Practice ( BMP ) </li></ul><ul><li>Those farmers who have attended other rice production training. </li></ul><ul><li>Conventional Practice ( CP ) </li></ul><ul><li>Those farmers who have not received any rice production training. </li></ul>
  8. 8. Sample Numbers   64   05 25    12   02   07   14 Total   26   00   04   10   00   04   08 CP   21   05 05 00 02 03 06 BMP   17   00   15   02   00   00   00 SRI Total Phreas Sdach Kampong Trobek Ba Phnom Kampong Leave Prey Veng KamChai Mear Farming Practice
  9. 9. Data collection <ul><li>1.Baseline Data </li></ul><ul><li>2.Agronomy Observat </li></ul><ul><li>3.Socio-economic </li></ul><ul><li>4.Other related Data </li></ul>
  10. 10. Average land area (ha) for farmers using different practice
  11. 11. Rice management on three farming practice 16 17 26 Planting distance (cm) 3 2 1 Planting depth (cm) 29 26 14 Seeding age at transplanting (days) 74 52 22 Seeding rate (kg/ha) CP BMP SRI Description
  12. 12. Rice biophysical characteristics 0.0001 2553c 2990b 3,798a Grain yield (kg/ha) 0.4380 24.80a 24.57a 24.41a 1000-grain weight (g) 0.1040 21a 28a 24a Unfilled grains per panicle 0.0001 70c 81b 101a Filled grains per panicle 0.0001 90c 109b 125a Seed number per panicle 0.0001 21b 21b 23a Panicle length (cm) 0.6900 376a 323ab 350b Panicle number per hill 0.0001 133a 94b 36c Non-tiller number per m 2 0.0001 510a 418b 390b Tiller number per m 2 0.0010 67.24b 61.35b 77.39a Plant height (cm) Sig. CP BMP SRI Rice biophysical
  13. 13. Grain yields of rice management systems
  14. 14. Relationship between grain yield and filled grain
  15. 15. Relationship between grain yield and field techniques -0.26 * Water depth at transplanting 0.53 ** Hill spacing -0.55 ** Planting depth -0.55 ** Plant number per hill -0.54 ** Seedling age -0.28 * Seed rate -0.44 ** Inorganic fertilizer application 0.03 ns Organic fertilizer application Grain Yield (kg/ha) Field techniques
  16. 16. Socioeconomic Aspects of Rice Management Systems Level of appropriateness of rice management practices   Note: score 1 to 5 represent the worst to best
  17. 17. Socioeconomic Aspects of Rice Management Systems Labor inputs of rice management systems (person-hours/ha) 0.6540 109a 116a 156a Water management 0.6470 405a 449a 550a Transplanting 0.4610 261a 348a 390a Uproot seedling 0.8480 75a 77a 89a Land Preparation 0.0001 1b 67b 868a Compost preparation Sig. CP BMP SRI Labor inputs
  18. 18. Socioeconomic Aspects of Rice Management Systems Labor inputs of rice management systems (person-hours/ha) (cont. 0.0020 1426b 1622b 3311a Total labor inputs 0.0001 93b 91b 327a Drying/storing 0.0100 146b 70b 394a Threshing 0.0570 266ab 183b 363a Harvesting 0.0160 13a 18a 0b Pesticide spray 0.0280 23b 90ab 205a Weed control Sig. CP BMP SRI Labor inputs
  19. 19. Socioeconomic Aspects of Rice Management Systems Input costs of rice management practices (thousand riels/ha) Sig. CP BMP SRI Material cost 0.8700 `890.9a 920.6a 1,004.9a   Total material cost 0.2960 187.4a 339.6a 269.6 Fuel cost 0.0390 29.4 34.6a 0.0b Pesticide cost 0.0001 459.2a 426.6a 0.0b Inorganic fertilizer cost 0.0001 145.8b 39.3b 706.1a Organic fertilizer cost 0.0001 69.1a 80.5a 29.2b Seed cost
  20. 20. Socioeconomic Aspects of Rice Management Systems Income from each rice management practice (thousand riels/ha) <ul><li>SRI = 2,089.10 riels/ha </li></ul><ul><li>BMP = 1,644.70 riels/ha </li></ul><ul><li>CP = 1,404.30 riels/ha </li></ul><ul><li>There were highly significantly different between the income of these rice management systems </li></ul>
  21. 21. Socioeconomic Aspects of Rice Management Systems Gross margin of rice management practice (thousand riels/ha)
  22. 22. Socioeconomic Aspects of Rice Management Systems Farmers perception on the importance of rice field management techniques
  23. 23. CONCLUSION AND RECOMMENDATION   <ul><li>Performance of Rice Management Systems </li></ul><ul><li>SRI provided the highest grain yield and other positive rice characteristics compared to BMP and CP. Grain yield increased approximately 48% and 27% </li></ul><ul><li>The main factors contributing to improving and enhancing rice production were short seedling age, good water management, weed control, organic fertilizer, and good planting methods. </li></ul><ul><li>SRI played the significantly role to improve soil fertility, enhance good performance, and contribute to good quality of rice grain. However, limited availability of organic fertilizer is an important issue to be concerned by many stakeholders </li></ul>
  24. 24. CONCLUSION AND RECOMMENDATION   <ul><li>Farmers practices </li></ul><ul><li>SRI farmers usually follow the practices of seedling preparation, transplanting, hill spacing, organic fertilizer application, weeding, and water rather than those of BMP and CP farmers. In contrast, CP farmers relied mainly on natural condition. </li></ul><ul><li>Some techniques could not be implemented by farmers in specific conditions. For instance, farmers could not manage water to enhance rice growing. </li></ul><ul><li>Requiring high quality of field management, SRI field sizes were relatively small and located close to farmers houses compared to CP and BMP. </li></ul>
  25. 25. CONCLUSION AND RECOMMENDATION   <ul><li>Economic Aspects of Rice Management Systems </li></ul><ul><li>SRI required both higher labors and materials than those of CP and BMP. Most labors of SRI method were accumulated highly on compost preparation and weed control. With the high yield of SRI practices, more labors were needed for harvesting, threshing, and drying/storing. </li></ul><ul><li>Being account for labor cost, all rice management systems provided the GMs below 0 riel, and the highest loss were in SRI, followed by CP and BMP. In contrast, excluding total labor costs from this calculation the SRI farmers got the highest benefits, and net income (GMs) was increased about 110% and 50% when they turned their practices from CP and BMP to SRI, respectively </li></ul><ul><li>Even if losses of net income were occurred for all system when including invested labors, the opportunity of employments were highly available for the family member through their own rice productions, meaning that losses money was compensated with family labor investment on their farms </li></ul>
  26. 26. CONCLUSION AND RECOMMENDATION   <ul><li>Farmers vision on rice management practices </li></ul><ul><li>Most of the SRI farmers thought that fertilizer application and land preparation were the main factors contributing to achieve maximum grain yield. However, combining of many rice management techniques on rice production was critical to achieve maximum grain yield </li></ul><ul><li>Level of farmers adoption on SRI methods varied from the farmers to others. Relying on natural condition was the main factor influencing the level of farmers' adoption. Therefore, partly adopting the principles or techniques of SRI methods may be more appropriate to help farmers improve and enhance their rice production to be compatible with erratic natural condition </li></ul>