Irrigation with Microbial-Contaminated Water and Risk of Crop Contamination
2007
Choi, Y.S. (University of Arizona, Tucson, AZ, USA) | Song, I.H. (University of Minnesota, Minneapolis, MN, USA), E-mail: [email protected] | Kwun, S.K. (Seoul National University, Seoul, Republic of Korea)
The aim of this study was to compare crop contamination between two irrigation methods using microbial-contaminated water. The effect of relative humidity on microbial survival of the three indicator microorganisms was also investigated. Escherichia coli ATCC 25922, Clostridium perfringens ATCC 3624, and coliphage PRD1 were applied to irrigation water to grow cantaloupe, lettuce, and bell pepper. Half of the sixteen plots were subsurface drip irrigated (SDI) and the other half were furrow irrigated (FI). Two relative humidity levels were controlled at 15-65% and 55-80% for the dry and humid condition experiments, respectively.
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