Description: 1. Water, no longer a plentiful resource, should be used sparingly in irrigated agriculture.- 2. Yield response of cotton, maize, soybean, sugar beet, sunflower and wheat to deficit irrigation.- 3. The response of winter wheat to water stress and nitrogen fertilizer use efficiency.- 4. Improving irrigation management practices with water-deficit irrigation.- 5. Field estimation of water and nitrate balance for an irrigated crop.- 6. Water and nitrogen use efficiency under limited water supply for maize to increase land productivity.- 7. Water balance and nitrate leaching in an irrigated maize crop in SW Spain.- 8. Nuclear techniques to evaluate water use of field crops irrigated in different growth stages.- 9. Effects of water stress imposed at different plant growth stages of common bean (Phaseolus vulgaris) on yield and N2 fixation.- 10. Yield response of groundnut grown under rainfed and irrigated conditions.- 11. Sugarcane yield response to deficit irrigation at two growth stages.-12. Contribution to improve sugar beet deficit- irrigation.- 13. Water stress effect on different growing stages for cotton and its influence on yield reduction.- 14. Some studies on pre-planned controlled soil moisture irrigation scheduling of field crops.- 15. Optimum irrigation schedules for cotton under deficit irrigation conditions.- 16. Field response of potato subjected to water stress at different growth stages.- 17. Crop yield response to deficit irrigation imposed at different plant growth stages.- 18. Soil spatial variability considerations in salt emission and drainage reduction.- 19. Summary by the Editors.- 20. List of Contributors.

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