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Crop Yield Response to Deficit Irrigation : Report of an FAO/IAEA Co-ordinated Research Program by Using Nuclear Techniques - C. Kirda

Crop Yield Response to Deficit Irrigation

Report of an FAO/IAEA Co-ordinated Research Program by Using Nuclear Techniques

By: C. Kirda (Editor), P. Moutonnet (Editor), C. Hera (Editor), D.R. Nielsen (Editor)

Hardcover Published: 30th November 1998
ISBN: 9780792352990
Number Of Pages: 262

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The increasing global demand for food and other agricultural products calls for urgent measures to increase water use efficiency which is, with plant nutrient availability, one of the two main limiting factors in crop production. Although only 20% of all cultivated land in the world is under irrigation, it provides 35-40% of all crop production. Because of higher yields under irrigated agriculture, investments for irrigation are usually a top priority. However, it has become a matter of serious concern in recent years that, despite their high co~ts, the performance of many irrigation projects has fallen short of expectations as a result of inadequate water management at both farm and system levels. Crop production increase has been well below the project targets. The greatest potential for increasing food and other agricultural products is the more efficient use of naturally occurring precipitation in conjunction with improved soil fertility management. Until recently, regardless of the amounts and distribution of rainfall, irrigation practices were used almost exclusively to supplement the amount of soil water stored in the root zone to such an extent that the available soil water never allowed the crop to suffer from water stress throughout the growing season. As a result, even today farmers still tend to over-irrigate to ensure a bountiful amount of water stored.

Water, no longer a plentiful resource, should be used sparingly in irrigated agriculturep. 1
Yield response of cotton, maize, soybean, sugar beet, sunflower and wheat to deficit irrigationp. 21
The response of winter wheat to water stress and nitrogen fertilizer use efficiencyp. 39
Improving irrigation management practices with water-deficit irrigationp. 49
Field estimation of water and nitrate balance for an irrigated cropp. 71
Water and nitrogen use efficiency under limited water supply for maize to increase land productivityp. 87
Water balance and nitrate leaching in an irrigated maize crop in SW Spainp. 95
Nuclear techniques to evaluate water use of field crops irrigated in different growth stagesp. 109
Effects of water stress imposed at different plant growth stages of common bean (Phaseolus vulgaris) on yield and N[subscript 2] fixationp. 121
Yield response of groundnut grown under rainfed and irrigated conditionsp. 128
Sugarcane yield response to deficit irrigation at two growth stagesp. 136
Contribution to improve sugar beet deficit- irrigationp. 148
Water stress effect on different growing stages for cotton and its influence on yield reductionp. 161
Some studies on pre-planned controlled soil moisture irrigation scheduling of field cropsp. 180
Optimum irrigation schedules for cotton under deficit irrigation conditionsp. 196
Field response of potato subjected to water stress at different growth stagesp. 213
Crop yield response to deficit irrigation imposed at different plant growth stagesp. 224
Soil spatial variability considerations in salt emission and drainage reductionp. 239
Summaryp. 249
List of Contributorsp. 256
Table of Contents provided by Blackwell. All Rights Reserved.

ISBN: 9780792352990
ISBN-10: 0792352998
Series: Developments in Plant and Soil Sciences
Audience: General
Format: Hardcover
Language: English
Number Of Pages: 262
Published: 30th November 1998
Publisher: Springer
Country of Publication: NL
Dimensions (cm): 23.5 x 15.5  x 2.54
Weight (kg): 1.25