Published by the College of Tropical Agriculture and Human Resources (CTAHR) and issued in furtherance of Cooperative Extension work, Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. Andrew G. Hashimoto, Director/Dean, Cooperative Extension Service/CTAHR, University of Hawai‘i at Mänoa, Honolulu, Hawai‘i 96822. An equal opportunity/affirmative action inst...

Soil in laboratory microcosm experiments was amended with dried and milled crop residue of onion (Allium cepa L. cv. Mission) or garlic (A. sativa L. cv. California Early). The amend ments, along with the additional factors of amendment concentration (0, 1 or 3% (w/w)) an soil temperature (23 or 39 8C), were evaluated with respect to germination of seeds of th weedy annual plants Echinochloa cr...