Contents

I. Introduction 192

II. Supplemental Irrigation 193

A. Optimization of Supplemental Irrigation 196

1. Deficit Supplemental Irrigation 196

2. Maximizing Net Profits 198

3. Cropping Patterns and Cultural Practices... 198

B. Water vs. Land Productivity 199

III. Water Harvesting 200

A. The Concept and Components of the System... 200

B. Water Harvesting Techniques 203

1. Micro-Catchment Systems 203

2. Macro-Catchment Systems 207

C. Water Harvesting for Supplemental

Irrigation 210

IV. Conclusions References

211 212

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