Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Leiden
Taylor & Francis Balkema
2007
|
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Zugl.: Delft, Univ., Diss., 2007 |
| Beschreibung: | XIII, 113 S. Ill., graph. Darst., Kt. |
| ISBN: | 9780415439466 0415439469 |
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| 245 | 1 | 0 | |a Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia |c by Melesse Temesgen Leye |
| 264 | 1 | |a Leiden |b Taylor & Francis Balkema |c 2007 | |
| 300 | |a XIII, 113 S. |b Ill., graph. Darst., Kt. | ||
| 336 | |b txt |2 rdacontent | ||
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Datensatz im Suchindex
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Table of Contents
Synopsis.
Table of contents.vii
Preface.x
Notationsand Symbols.xi
introduction.1
1.1 Overview.1
1.2 The 'Cause and Effect Tree' of Traditional Tillage and Low Water
Productivity.4
1.3 The Solution.6
1.4 Problems that are peculiar to Ethiopia.7
1.5 Objectives.7
1.6 Outline of the thesis.8
RESEARCH BACKGROUND AND HYPOTHESES_9
2.1 Definitions of Conservation Tillage.9
2.2 the need for conservation tillage.10
2.2.1 On-farm water balance and water productivity.10
2.2.2 Combating land degradation.10
2.2.3 Increased crop production on a sustainable basis.//
2.3 Requirements of conservation tillage.11
2.3.1 Minimum soil disturbance.11
2.3.2 Soil cover.11
2.3.3 Enhanced soil organic matter.12
2.3.4 Crop rotation.12
2.4 Global trends in conservation tillage.12
2.5 Conservation tillage in Africa.13
2.5.1 Major constraints.13
2.5.2 Adaptation of conservation tillage for smallholder farmers in Africa.14
2.6 Conservation tillage in Ethiopia.14
2.6.1 Reducing tillage frequency.14
2.6.2 Conservation tillage using herbicides.15
2.6.3 The issue of moisture conservation in semi-arid areas.16
2.6.4 The case of broadcast crops.16
2.6.5 Implements.16
2.7 Hypotheses.17
TRADITIONAL TILLAGE SYSTEMS OF SMALLHOLDER FARMERS IN SEMI-
ARID AREAS OF ETHIOPIA_19
3.1 Overview.19
3.2 Methodology.19
3.2.1 The study area.19
3.2.2 The traditional tillage implement.20
3.2.3 Studies on tillage systems.20
3.2.4 Analytical framework.21
3.2.5 Studies on the plow pan.23
3.3 Results and discussion.23
3.3.1 The traditional tillage implement.23
3.3.2 The traditional Tillage systems.25
vm
3.3.3 Plow pans under the traditional cultivation system.34
3.4 Conclusions.35
MARESHA MODIFIED IMPLEMENTS FOR CONSERVATION TILLAGE_37
4.1 Overview.37
4.1.1 The Mareshaplow - Opportunities and Drawbacks.37
4.1.2 TheSubsoiler.38
4.1.3 The Tie-ridger.39
4.1.4 The Sweep.40
5.1.S The Maresha Modified Plow.41
4.1.6 The semi-automatic Row Planter.42
4.2 Methodology.44
4.2.1 Testing sites.44
4.2.2 Implements tested.44
4.2.3 Measurement of draft power requirement.44
4.3 Results and discussion.46
4.3.1 Field performance of the of Subsoiler:.46
4.3.2 Field performance of the Tie-ridger.47
4.3.3 Field performance of the Sweep.48
4.3.4 Field performance of the Maresha Modified Plow.49
4.3.5 Field performance of the Semi-automatic Row Planter.50
4.4 Conclusions.51
WATER PRODUCTIVITY OF STRIP TILLAGE SYSTEMS FOR MAIZE
PRODUCTION LN SEMI-ARID ETHIOPIA_53
5.1.1 overview_53
5.1.2 Materials and Methods.54
5.1.3 Experimental site.54
5.1.4 Treatments.54
5.1.5 Water balance.55
5.1.6 Modelling the water balance.$6
5.1.7 Water productivity.61
5.1.8 Grainyield.63
5.1.9 Soil physical and chemical properties.63
5.1.10 Financial analysis.64
5.1.11 Participatory approach.64
5.2 Results and discussion.65
5.2.1 Water balance.65
5.2.2 Grainyield.70
5.2.3 Water productivity.'
5.2.4 Soil properties.
5.2.5 Financial analysis.
5.2.6 Lessons from Participatory research.
5.3 Conclusions.78
WATER PRODUCTIVITY OF IMPROVED AND MINIMUM TILLAGE SYSTEMS
for tef production in semi-arid ethiopia_81
6.1 Overview.81
6.2 Materials and methods."
6.2.1 Experimental site.
6.2.2 Treatments.°
6.2.3. Rainfall partitioning.
6.2.4 Conceptual model to simulate rainfall partitioning.*
IX
6.2.5 Grain yield.84
6.2.6 Grain yield.85
6.2.7 Soil physical and chemical properties.85
6.2.8 Financial analysis.85
6.3 Results and discussion.85
6.3.1 Rainfall partitioning.85
6.3.2 Water productivity.89
6.3.3 Grain yield.'.90
Outputs from the conceptual model.90
6.3.4 Soil properties.92
6.3.5 Financial analysis.93
6.4 Conclusions.93
CONCLUSIONS AND RECOMMENDATIONS.95
7.1 Conclusions.95
7. /. / The traditional tillage system.95
7.1.2 The Maresha modified conservation tillage implements.95
7.1.3 The locally adapted conservation tillage systems.96
7.1.4 Participation of farmers in research.97
7.2 Recommendations.97
REFERENCES_.99
ACKNOWLEDGMENTS.Ill
SAMENVATTING.113
ABOUT THE AUTHOR_.115 |
| adam_txt |
Table of Contents
Synopsis.
Table of contents.vii
Preface.x
Notationsand Symbols.xi
introduction.1
1.1 Overview.1
1.2 The 'Cause and Effect Tree' of Traditional Tillage and Low Water
Productivity.4
1.3 The Solution.6
1.4 Problems that are peculiar to Ethiopia.7
1.5 Objectives.7
1.6 Outline of the thesis.8
RESEARCH BACKGROUND AND HYPOTHESES_9
2.1 Definitions of Conservation Tillage.9
2.2 the need for conservation tillage.10
2.2.1 On-farm water balance and water productivity.10
2.2.2 Combating land degradation.10
2.2.3 Increased crop production on a sustainable basis.//
2.3 Requirements of conservation tillage.11
2.3.1 Minimum soil disturbance.11
2.3.2 Soil cover.11
2.3.3 Enhanced soil organic matter.12
2.3.4 Crop rotation.12
2.4 Global trends in conservation tillage.12
2.5 Conservation tillage in Africa.13
2.5.1 Major constraints.13
2.5.2 Adaptation of conservation tillage for smallholder farmers in Africa.14
2.6 Conservation tillage in Ethiopia.14
2.6.1 Reducing tillage frequency.14
2.6.2 Conservation tillage using herbicides.15
2.6.3 The issue of moisture conservation in semi-arid areas.16
2.6.4 The case of broadcast crops.16
2.6.5 Implements.16
2.7 Hypotheses.17
TRADITIONAL TILLAGE SYSTEMS OF SMALLHOLDER FARMERS IN SEMI-
ARID AREAS OF ETHIOPIA_19
3.1 Overview.19
3.2 Methodology.19
3.2.1 The study area.19
3.2.2 The traditional tillage implement.20
3.2.3 Studies on tillage systems.20
3.2.4 Analytical framework.21
3.2.5 Studies on the plow pan.23
3.3 Results and discussion.23
3.3.1 The traditional tillage implement.23
3.3.2 The traditional Tillage systems.25
vm
3.3.3 Plow pans under the traditional cultivation system.34
3.4 Conclusions.35
MARESHA MODIFIED IMPLEMENTS FOR CONSERVATION TILLAGE_37
4.1 Overview.37
4.1.1 The Mareshaplow - Opportunities and Drawbacks.37
4.1.2 TheSubsoiler.38
4.1.3 The Tie-ridger.39
4.1.4 The Sweep.40
5.1.S The Maresha Modified Plow.41
4.1.6 The semi-automatic Row Planter.42
4.2 Methodology.44
4.2.1 Testing sites.44
4.2.2 Implements tested.44
4.2.3 Measurement of draft power requirement.44
4.3 Results and discussion.46
4.3.1 Field performance of the of Subsoiler:.46
4.3.2 Field performance of the Tie-ridger.47
4.3.3 Field performance of the Sweep.48
4.3.4 Field performance of the Maresha Modified Plow.49
4.3.5 Field performance of the Semi-automatic Row Planter.50
4.4 Conclusions.51
WATER PRODUCTIVITY OF STRIP TILLAGE SYSTEMS FOR MAIZE
PRODUCTION LN SEMI-ARID ETHIOPIA_53
5.1.1 overview_53
5.1.2 Materials and Methods.54
5.1.3 Experimental site.54
5.1.4 Treatments.54
5.1.5 Water balance.55
5.1.6 Modelling the water balance.$6
5.1.7 Water productivity.61
5.1.8 Grainyield.63
5.1.9 Soil physical and chemical properties.63
5.1.10 Financial analysis.64
5.1.11 Participatory approach.64
5.2 Results and discussion.65
5.2.1 Water balance.65
5.2.2 Grainyield.70
5.2.3 Water productivity.'
5.2.4 Soil properties.
5.2.5 Financial analysis.
5.2.6 Lessons from Participatory research.
5.3 Conclusions.78
WATER PRODUCTIVITY OF IMPROVED AND MINIMUM TILLAGE SYSTEMS
for tef production in semi-arid ethiopia_81
6.1 Overview.81
6.2 Materials and methods."
6.2.1 Experimental site.
6.2.2 Treatments.°
6.2.3. Rainfall partitioning.
6.2.4 Conceptual model to simulate rainfall partitioning.*
IX
6.2.5 Grain yield.84
6.2.6 Grain yield.85
6.2.7 Soil physical and chemical properties.85
6.2.8 Financial analysis.85
6.3 Results and discussion.85
6.3.1 Rainfall partitioning.85
6.3.2 Water productivity.89
6.3.3 Grain yield.'.90
Outputs from the conceptual model.90
6.3.4 Soil properties.92
6.3.5 Financial analysis.93
6.4 Conclusions.93
CONCLUSIONS AND RECOMMENDATIONS.95
7.1 Conclusions.95
7. /. / The traditional tillage system.95
7.1.2 The Maresha modified conservation tillage implements.95
7.1.3 The locally adapted conservation tillage systems.96
7.1.4 Participation of farmers in research.97
7.2 Recommendations.97
REFERENCES_.99
ACKNOWLEDGMENTS.Ill
SAMENVATTING.113
ABOUT THE AUTHOR_.115 |
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| id | DE-604.BV023010071 |
| illustrated | Illustrated |
| index_date | 2024-07-02T19:09:01Z |
| indexdate | 2025-01-10T13:07:02Z |
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| isbn | 9780415439466 0415439469 |
| language | English |
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| spelling | Temesgen, Melesse Verfasser aut Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia by Melesse Temesgen Leye Leiden Taylor & Francis Balkema 2007 XIII, 113 S. Ill., graph. Darst., Kt. txt rdacontent n rdamedia nc rdacarrier Zugl.: Delft, Univ., Diss., 2007 Wassernutzung (DE-588)4138608-5 gnd rswk-swf Bodenschutz (DE-588)4069568-2 gnd rswk-swf Landwirtschaft (DE-588)4034402-2 gnd rswk-swf Äthiopien (DE-588)4000639-6 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Äthiopien (DE-588)4000639-6 g Bodenschutz (DE-588)4069568-2 s Landwirtschaft (DE-588)4034402-2 s DE-604 Wassernutzung (DE-588)4138608-5 s HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016214294&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Temesgen, Melesse Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia Wassernutzung (DE-588)4138608-5 gnd Bodenschutz (DE-588)4069568-2 gnd Landwirtschaft (DE-588)4034402-2 gnd |
| subject_GND | (DE-588)4138608-5 (DE-588)4069568-2 (DE-588)4034402-2 (DE-588)4000639-6 (DE-588)4113937-9 |
| title | Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia |
| title_auth | Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia |
| title_exact_search | Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia |
| title_exact_search_txtP | Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia |
| title_full | Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia by Melesse Temesgen Leye |
| title_fullStr | Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia by Melesse Temesgen Leye |
| title_full_unstemmed | Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia by Melesse Temesgen Leye |
| title_short | Conservation tillage systems and water productivity implications for smallholder farmers in semi-arid Ethiopia |
| title_sort | conservation tillage systems and water productivity implications for smallholder farmers in semi arid ethiopia |
| topic | Wassernutzung (DE-588)4138608-5 gnd Bodenschutz (DE-588)4069568-2 gnd Landwirtschaft (DE-588)4034402-2 gnd |
| topic_facet | Wassernutzung Bodenschutz Landwirtschaft Äthiopien Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016214294&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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