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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />~r.~: "7e:') <br />l'.~ ....,' ~:. i >,j d <br /> <br />TABLE OF CONTENTS <br /> <br />GLOSSARY . . . . <br /> <br />. . . . <br /> <br />ACKNOWLEDGEMENTS AND CREDITS <br />PREFACE <br /> <br />I. INTRODUCTION <br /> <br />Basic Concepts and Objectives <br />Evaporation and Transpiration Reduction. . <br />Surface Runoff and Deep Percolation Reduction <br />I rri gat i on Systems and I rri gat i on Management .... <br />Cultural Methods and Soil-Plant-Moisture Relationships <br />Conjunctive Use Opportunities. . . . . . . <br />Typical High Plains Irrigation Systems .. <br />Conservation/Efficiency Selection Criteria <br /> <br />II. MANAGEMENT AND TECHNOLOGICAL ASSESSMENTS <br /> <br />Evaporation and Transpiration Reductions <br />A. Crop/Plant Adaptations <br />1. Genetic Improvements <br /> <br />a) Stress (defi cit) i rri gati on/dryl and/drought <br />tolerance adaptation . . . . . . . . . . . <br />b) Earlier growing season/earlier maturing/shorter <br />growing season adaptations ......... <br />c) Plant size/structure/growth adaptations. . . <br />d) Water quality/salinity tolerance adaptations <br /> <br />2. Planting Methods/Geometry <br /> <br />B. Plant/Soil Treatments. . . <br /> <br />1. Antitranspirants .,. <br />2. Evaporation Suppression <br />3. Growth Regulators <br /> <br />C. Irrigation Management for ET Reduction <br /> <br />D. Mechanical/Physical Evaporation Reduction <br /> <br />Irrigation Management and Water Use Efficiency <br /> <br />A. SCheduling <br /> <br />. . . <br /> <br />. . . . . . . . . . . <br /> <br />iii <br /> <br />Page <br /> <br />vii <br /> <br />xvii <br /> <br />xx <br /> <br />1 <br /> <br />3 <br />5 <br />6 <br />7 <br />9 <br />10 <br />11 <br />18 <br /> <br />23 <br /> <br />25 <br /> <br />25 <br /> <br />25 <br /> <br />26 <br />27 <br />28 <br />29 <br /> <br />30 <br /> <br />31 <br /> <br />32 <br />35 <br />39 <br /> <br />40 <br /> <br />42 <br /> <br />43 <br /> <br />44 <br />