EFFECT OF THE SYSTEM OF RICE INTENSIFICATION (SRI) ON ...

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Type of fertilizers used by farmers with amount, application per year and total history of application. Applied materials % of farmers Kg/m 2 # of applications year - 1 Years of application Compost 53,33 0.33 + (-) 0.49 1,4 + (-) 0.63 5 + (-) 10 Green manure 73,33 1.90 + (-) 7.24 1.45 + (-) 0.67 9 + (-) 11.79 Organic fertilizers 13,33 0.01 + (-) 0.02 1 1 Chemical fertilizers 13,33 0.004 + (-) 0.02 1.25 + (-) 0.5 7.67 + (-) 10.69 Percentage of farmers combing different kinds of fertilizers. Applied materials % of total # of farmers % of group Compost and Green manure 20 42,67 Compost and Organic fertilizers Green manure and organic fertilizers Green manure and chemical fertilizers Compost, green manure and organic fertilizer Compost, green manure and chemical fertilizer 10 21,43 3,33 7,14 6,67 14,29 3,33 7,14 3,33 7,14 Rice varieties. Percentages in brackets indicate the percentage of farmers who cultivated these varieties. Dorn Neb (80%) Sorsor Rang Cheay Kum Srov Phakarmodul Kror Ob Mrom (70%) Neang Meas Torng Chhuk Chheing Ses Sen Pidao Ka Prom Somaly (45%) Kro Orb Phka Ten Leung Tek Kror Ya Orn Lov Kror Sang Phmor Moung Many Pdao Pen Neang Sar Thmor Teab Neang Kong Pkar Mlis Orsar Kro Ourb UA Moung Mong Pdaov Chom Reuom Ornoub Thom Bam Larr Chmar Tot Sa Ang E Aer 84
3 2 1 Combination of <strong>SRI</strong> techniques within the target farming community. Natural fertilizers cover composts and leafy/green manures. 1 1 1 1 1 1 1 Farmers' <strong>SRI</strong> techniques 4 10 2 Natural fertilizers and plant in lines Natural fertilizers, 1 seedling in lines, regular weeding Natural fertilizers, 1 seedling in lines Leveling of field,natural fertilizers, 1 seedling in lines, and general care taking 1 seedling in lines, plant carefully, use natural fertilizer, young seedling 1, 2 or 3 old seedlings per hill, natural fertilizers 1 seedling per hill, natural fertilizers Plough twice prior to transplanting, natural fertilizers, 1 seedling per hill Plough twice, 1 seedling per hill, natural and chemical fertilizers Regular weeding, 1 seedling in lines, use less water, natural fertilizers 1 seedling per hill Natural fertilizers 85
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EFFECT OF THE SYSTEM OF RICE INTENS
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Abstract The System of Rice Intensi
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Preface This report is part of my M
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Table of contents Preface..........
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1. Introduction Rice (Oryza sativa
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fields will normally result in lowe
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materials. These two chapters lead
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the process of puddling - which is
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Crop residues The use of rice straw
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The degree of GHGs emissions will t
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are required (app. 150-200 mm) and
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• The use of young seedlings tran
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Table 1. The major differences betw
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Cambodia during modern times. In 19
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Rainfed rice in Cambodia is often g
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In general there are three types of
Page 33 and 34: 7. Study and experimental implement
Page 35 and 36: growing rice but the Cambodian rain
Page 37 and 38: Figure 6. Map of the two target com
Page 39 and 40: The following main topics were exam
Page 41 and 42: White & Seng (1997) state that not
Page 43 and 44: conditions signifying little or no
Page 45 and 46: Riel 3000000 2800000 2600000 240000
Page 47 and 48: The involved farmers seem to belong
Page 49 and 50: The farmers’ composts were often
Page 51 and 52: chemical fertilizers. It is part of
Page 53 and 54: 9.5.2 SRI techniques The different
Page 55 and 56: t/ha 5,5 5 4,5 4 3,5 3 2,5 2 1,5 1
Page 57 and 58: the farmers are with SRI. Or farmer
Page 59 and 60: forced to sell labour in order to s
Page 61 and 62: households were in average able to
Page 63 and 64: K, only a minor fraction is availab
Page 65 and 66: Table 8. An estimated picture of an
Page 67 and 68: fertilizers which can increase N2O
Page 69 and 70: Table 9. An estimated C budget. It
Page 71 and 72: 10. Conclusion The farmers particip
Page 73 and 74: 11. References Anthofer, J. 2004. T
Page 75 and 76: Moldenhauer, K.A.K. & Gibbons, J. 2
Page 77 and 78: Yue, J., Shi, Y., Liang, W., Wu, J.
Page 79 and 80: APPENDIX B. Soil sampling methodolo
Page 81 and 82: Type How much do you apply to your
Page 83: APPENDIX E. LIVELIHOOD ASSESTS. Per
Page 87: APPENDIX F. Interview with Ma Veasn
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