About Us | Help Videos | Contact Us | Subscriptions

Members of ASA, CSSA, and SSSA: Due to system upgrades, your subscriptions in the digital library will be unavailable from May 15th to May 22nd. We apologize for any inconvenience this may cause, and thank you for your patience. If you have any questions, please call our membership department at 608-273-8080.


Institutional Subscribers: Institutional subscription access will not be interrupted for existing subscribers who have access via IP authentication, though new subscriptions or changes will not be available during the upgrade period. For questions, please email us at: queries@dl.sciencesocieties.org or call Danielle Lynch: 608-268-4976.



This article in SSSAJ

  1. Vol. 41 No. 4, p. 785-788

Request Permissions


Effect of Irrigation Systems on the Water Requirements of Sweet Corn1,2

  1. C. W. Wendt,
  2. A. B. Onken,
  3. O. C. Wilke,
  4. R. Hargrove,
  5. W. Bausch and
  6. L. Barnes3



A field study was conducted to determine the influence of sprinkler irrigation (Sp), furrow irrigation (F), subirrigation (Su), and automated subirrigation (ASu) on the water requirements of sweet corn (Zea mays L.). Irrigation water was applied to the SP, F, and Su plots when the soil water potential at the 30-cm depth in the row reached −40 cbars potential. The time and amount of water applied was based on a combination of leaf area index (LAI) and potential evapotranspiration (ETp). Water application to the ASu plots was controlled by a switching tensiometer 30 cm deep set at −40 cbars potential. Soil water content changes were determined by gravimetrically sampling the surface 15 cm and obtaining neutron probe measurements of water in the deeper depths.

Significant differences existed in the irrigation water requirement of the sweet corn irrigated by the different systems (F = 351 mm, SP = 248 mm, Su = 248 mm, ASu = 142 mm). However, little difference in consumptive use occurred between systems (F = 361 mm, Sp = 346 mm, Su = 346 mm, ASu = 310 mm) due to differences in soil water utilization. Automation of irrigation systems offers the possibility of significantly enhancing irrigation water use efficiency in supplementally irrigated areas.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © . Soil Science Society of America