Advances in Irrigation

List of Contributors

Preface

Introduction

Conjunctive Use of Rainfall and Irrigation in Semiarid Regions

I. Introduction

II. Rainfall Distributions in Semiarid Regions

III. Limited Irrigation

IV. Yield, Transpiration, Evapotranspiration, and Seasonal Water Application

V. Increased Efficiency of Soil Water Storage

VI. Conservation Tillage

VII. Specific Systems for the Conjunctive Use of Rainfall and Irrigation

VIII. Economic Considerations

IX. Summary

References

Irrigation Scheduling Using Soil Moisture Measurements: Theory and Practice

I. Theory of Irrigation Scheduling

II. Practical Aspects of Irrigation Scheduling

References

Canopy Temperature and Crop Water Stress

I. Introduction

II. Historical Perspective

III. Quantification of Crop Water Stress

IV. Concluding Remarks

References

Use of Solute Transport Models to Estimate Salt Balance below Irrigated Cropland

I. Introduction

II. Literature Review

III. Model Description

IV. Illustrative Calculations

V. Limitations of the Modeling Approach

VI. Summary and Conclusions

References

Level-Basin Irrigation

I. Introduction

II. Land Preparation

III. Design and Evaluation

IV. Management

Appendix

References

Flow Measurement Flumes: Applications to Irrigation Water Management

I. Introduction

II. Long-Throated Flumes

III. Types of Long-Throated Flumes

IV. Theoretical Considerations

V. Factors Influencing Calibration

VI. Selecting Flume Style and Site

VII. Trapezoidal Lined Canals

VIII. Structures for Unlined Canals

References

Principles, Practices, and Potentialities of Trickle (Drip) Irrigation

I. Introduction

II. Present Developments and Expansion of Trickle Irrigation

III. Potential Advantages of Trickle Irrigation

IV. Potential Disadvantages of Trickle Irrigation

V. Advances in System Components and Innovations

VI. Advances in Soil Water Modeling

VII. Advances in System Design and Evaluation

VIII. Advances in System Maintenance Practices

IX. Advances in System Management

X. Future Developments and Research in Trickle Irrigation

List of Symbols

References

Index