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Alfalfa seed underground drip irrigation

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Authors

R.W. Hagemann, Utah State University
L.S. Willardson, Utah State University
A.W. Marsh, University of California
C.F. Ehlig, University of California

Publication Information

California Agriculture 30(4):22-22.

Published April 01, 1976

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Abstract

Not available – first paragraph follows: Five underground drip irrigation systems with varied, emitter spacings were evaluated for alfalfa seed production in the Imperial Valley. Previously, higher seed yields had been produced with a 50-centibar soil water tension at 9 inches below surface drip lines than with soil water tensions of 10, 100, and 200 centibars (see California Apiculture, November 1975). Since surface drip lines are subject to sunlight and mechanical damage, we began an evaluation of five underground drip irrigation systems for alfalfa seed production in November 1973 at the Imperial Valley Conservation Research Center near Brawley. The five systems with indicated emitter spacings were: (1) Chapin, continuous (a biwall system with orifices spaced 32 inches on the inside tube and water seeping through a nylon-sewn seam on the outside tube); (2) Chapin, 8.”; (3) Watersaver, 24”; (4) Nelco, 24”; and (5) Anjac, 36”. The main objective was to determine the effect of emitter spacings on alfalfa seed yield rather than to compare commercially available drip lines.

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Alfalfa seed underground drip irrigation

R.W. Hagemann, L.S. Willardson, A.W. Marsh, C.F. Ehlig
Webmaster Email: wsuckow@ucanr.edu

Alfalfa seed underground drip irrigation

Share using any of the popular social networks Share by sending an email Print article
Share using any of the popular social networks Share by sending an email Print article

Authors

R.W. Hagemann, Utah State University
L.S. Willardson, Utah State University
A.W. Marsh, University of California
C.F. Ehlig, University of California

Publication Information

California Agriculture 30(4):22-22.

Published April 01, 1976

PDF  |  Citation  |  Permissions

Abstract

Not available – first paragraph follows: Five underground drip irrigation systems with varied, emitter spacings were evaluated for alfalfa seed production in the Imperial Valley. Previously, higher seed yields had been produced with a 50-centibar soil water tension at 9 inches below surface drip lines than with soil water tensions of 10, 100, and 200 centibars (see California Apiculture, November 1975). Since surface drip lines are subject to sunlight and mechanical damage, we began an evaluation of five underground drip irrigation systems for alfalfa seed production in November 1973 at the Imperial Valley Conservation Research Center near Brawley. The five systems with indicated emitter spacings were: (1) Chapin, continuous (a biwall system with orifices spaced 32 inches on the inside tube and water seeping through a nylon-sewn seam on the outside tube); (2) Chapin, 8.”; (3) Watersaver, 24”; (4) Nelco, 24”; and (5) Anjac, 36”. The main objective was to determine the effect of emitter spacings on alfalfa seed yield rather than to compare commercially available drip lines.

Full text

Full text is available in PDF.

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