University of California

Garlic in clay loam soil thrives on little irrigation


Blaine R. Hanson
Don May
Ronald Voss
Marita Cantwell
Robert Rice

Authors Affiliations

B.R. Hanson is Extension Irrigation and Drainage Specialist, Department of Land, Air and Water Resources, UC Davis;; D. May is Farm Advisor (emeritus), UC Cooperative Extension, Fresno;; R. Voss is Extension Vegetable Crops Specialist; M. Cantwell is Extension Postharvest Specialist, Department of Vegetable Crops, UC Davis;; R. Rice is Agronomist (retired), Rogers Foods, Modesto.

Publication Information

Hilgardia 56(4):128-132. DOI:10.3733/ca.v056n04p128. July 2002.

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We conducted 4 years of irrigation experiments in garlic on the West Side of the San Joaquin Valley to determine appropriate irrigation frequency and cutoff dates as well as the effect of irrigation on yields for crops grown in sandy and clay loam soil. In sandy soil with the moisture content at field capacity prior to the rapid growth stage, yield was strongly dependent on applied water, and weekly irrigation was needed for maximum yield. In clay loam, yield did not depend on applied water because the garlic plants were able to extract sufficient soil moisture to offset deficit irrigation. Irrigation cutoff in both soils should occur by mid-May.


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Hanson B, May D, Voss R, Cantwell M, Rice R. 2002. Garlic in clay loam soil thrives on little irrigation. Hilgardia 56(4):128-132. DOI:10.3733/ca.v056n04p128
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