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Evaluation of an over-extended sprinkler irrigation system
Authors: Korven, H.C. And J.K. Wiens
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Download file: https://library.csbe-scgab.ca/docs/journal/16/16_1_51_ocr.pdf
Published in: CBE Journal » CBE Journal Volume 16 (1974)
Download RAW file: https://library.csbe-scgab.ca/docs/journal/16/16_1_51_raw.pdf
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Description: Maximum production under irrigation requires a system with the capacity to meet the peak water requirements of the plant. Surface irrigation systems, particularly the border dyke method fed by gravity waters, are designed and operated so that elapsed time required to irrigate a field (irrigation cycle) is much shorter than the elapsed time between irrigations (irrigation interval). Sprinkler irrigation systems, however, are designed and operated so that most, if not all, of the irrigation interval is used for the irrigation cycle. The main reason for this is one of economics. The cost of the system is decreased as more of the available irrigating time is used for irrigating. A recommended design criterion for sprinkler irrigation systems is to design for the peak water requirements and to allow two or three additional days for maintenance (1, 4). Using this design criterion, the system lies idle between cycles early and late in the season when water requirements are not at peak. This design criterion was generally accepted for hand-move systems but was questioned when the mechanical-move systems, such as the side-roll wheel, and center-pivot systems were introduced. These systems can be used on larger acreages than those for which they were designed, with little increase in labor, and so the initial cost of equipment per acre can be decreased. The expansion of irrigation acreage may be up to twice the designed acreage.
Keywords: evaluation of an over-extended sprinkler irrigation system
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Citation: Korven, H.C. and J.K. Wiens 1974. EVALUATION OF AN OVER-EXTENDED SPRINKLER IRRIGATION SYSTEM. Canadian Agricultural Engineering 16(2):51-56.
Volume: 16
Issue: 2
Pages 51 - 56
Contributor:
Date: 1974
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Coverage: Canada
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DOI:
Description: Maximum production under irrigation requires a system with the capacity to meet the peak water requirements of the plant. Surface irrigation systems, particularly the border dyke method fed by gravity waters, are designed and operated so that elapsed time required to irrigate a field (irrigation cycle) is much shorter than the elapsed time between irrigations (irrigation interval). Sprinkler irrigation systems, however, are designed and operated so that most, if not all, of the irrigation interval is used for the irrigation cycle. The main reason for this is one of economics. The cost of the system is decreased as more of the available irrigating time is used for irrigating. A recommended design criterion for sprinkler irrigation systems is to design for the peak water requirements and to allow two or three additional days for maintenance (1, 4). Using this design criterion, the system lies idle between cycles early and late in the season when water requirements are not at peak. This design criterion was generally accepted for hand-move systems but was questioned when the mechanical-move systems, such as the side-roll wheel, and center-pivot systems were introduced. These systems can be used on larger acreages than those for which they were designed, with little increase in labor, and so the initial cost of equipment per acre can be decreased. The expansion of irrigation acreage may be up to twice the designed acreage.
Keywords: evaluation of an over-extended sprinkler irrigation system
Résumé:
Mots-clés:
Citation: Korven, H.C. and J.K. Wiens 1974. EVALUATION OF AN OVER-EXTENDED SPRINKLER IRRIGATION SYSTEM. Canadian Agricultural Engineering 16(2):51-56.
Volume: 16
Issue: 2
Pages 51 - 56
Contributor:
Date: 1974
Technical field:
Conference name:
Session name:
Other information:
Type:
Format:
Publication type:
Source:
Relation:
Coverage: Canada
Language 1:
Language 2:
Rights:
Notes:
Other files:
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