Advances in Irrigation

Contributors to This Volume

Preface

Contents of Volume 1

Irrigation Scheduling: Applied Timing Criteria

I. Introduction

II. Fundamental Scheduling Concepts

III. Parameter Thresholds as Timing Criteria

IV. Concluding Remarks

References

Energy Utilization and Management in Irrigation

I. Introduction

II. Energy Used in Irrigation

III. Energy Management Practices Available to Irrigators

IV. Economic Considerations of Alternative Irrigation Management Practices

V. Future Energy Sources

VI. Summary

References

Crop-Water Production Functions

I. Introduction

II. A Review of Agronomic and Physiological Production Functions

III. A Review of Economic Production Functions

IV. An Assessment of the Crop-Water Production Function Literature

V. Conclusions

References

Irrigation in Australia: Development and Prospects

I. Development of Irrigation

II. Current Efficiency of Irrigation Agriculture

III. Salinity Problems Associated with Irrigation Development

IV. Biological Limitations to Productivity

V. Prospects for Improvement

VI. Conclusions

References

Application of a Plant-Environment Model to Problems in Irrigation

I. Introduction

II. Brief Description of the Model Cupid

III. Model Comparison with Field Measurements

IV. Water and Energy Budgets during an Irrigation Cycle

V Influence of Irrigation on Leaf Wetness Duration

VI. Comparison of Cupid with Simpler Models

VII. Discussion

References

Field Variability of Soil Physical Properties

I. Introduction

II. Spatial Variation in Field Soils

III. Scaling Theory and Applications

IV. Steady Flow in Nonuniform Soils

V. Nonsteady Flow in Nonuniform Soils

VI. Concluding Remarks

List of Symbols

References

Economic Analysis of On-Farm Irrigation Using Response Functions of Crops

I. Introduction

II. The "Macro" Response or Production Function in an Individual Crop with a Fixed Intraseasonal Distribution of Water

III. Incorporation of the "Macro" Response Functions into Farm Production and Irrigation Planning

IV. "Dated" Crop Response Functions to Irrigation and Soil Moisture

V. Irrigation Scheduling: Optimization of Timing and Quantities of Irrigation Water

Appendix. Application of Linear Programming to Optimal Crop Selection and Irrigation Regimes

References

Irrigation Scheduling Based on a Dynamic Crop Response Model

I. Introduction

II. The Dynamic Crop Response Model

III. A Test of the Model's Validity

IV. The Decision Rationale for Irrigation Scheduling

References

A Model of Root Growth and Water Uptake Accounting for Photosynthesis, Respiration, Transpiration, and Soil Hydraulics

I. Introduction

II. Conceptual Basis

III. Governing Equations and Model Structure

IV. Simulation Trials

V. Discussion

Appendix A. Source Code in CSMP

Appendix B. Source Code in ACSL

Appendix C. Glossary of Terms Used in Computer Model

References

Techniques for Estimating Irrigation Water Requirements

I. Introduction

II. Common Methods of Estimating Evapotranspiration

III. Climatic Calibration of Estimating Methods

IV. Applications of Microprocessors and Microcomputers

V. Sample Calculations

References

Evapotranspiration Obtained from Remote Sensing Methods

I. Introduction

II. Evapotranspiration Models

III. Crop Stress Measurements by Infrared Thermometry

IV. Crop Water Stress with Spectral Measurements

V. Crop Water Status with Microwave Techniques

VI. Application of Remote Sensing with Traditional Methods

References

Index