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last final thesis of umer

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TABLE OF CONTENTS

DECLARATION............................................................................................................................ i

ABSTRACT ................................................................................................................................... ii

DEDICATION.............................................................................................................................. iii

BIOGRAPHICAL SKETCH ...................................................................................................... iv

ACKNOWLEDGMENTS ............................................................................................................ v

LIST OF TABLES ....................................................................................................................... ix

LIST OF ABBREVIATIONS AND ACRONYMS .................................................................. xii

CHAPTER 1: INTRODUCTION ................................................................................................ 1

1.2 Statement of the problem and justification....................................................................... 2

1.3 Objective of the study ......................................................................................................... 3

1.3.1 General objective of the study ..................................................................................... 3

1.3.2 Specific objectives ......................................................................................................... 4

1.4. Research Questions ............................................................................................................ 4

1.5. Hypothesis ........................................................................................................................... 4

CHAPTER 2. LITERATURE REVIEW .................................................................................... 5

2.1. Origin and Distribution of Maize ..................................................................................... 5

2.2. Ecology of Maize................................................................................................................. 6

2.3. Maize Production in Ethiopia ........................................................................................... 8

2.4. Importance of Maize .......................................................................................................... 9

2.5. Yield Gap in Maize ........................................................................................................... 11

2.6. Origin, Distribution and World Production of Cowpea ............................................... 12

2.7. Major Cowpea production constraints .......................................................................... 13

2.8. Importance of Intercropping........................................................................................... 14

2.9. Maize-cowpea intercropping systems ............................................................................. 15

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