C
Christopher Y. Choi
Researcher at University of Arizona
Publications - 28
Citations - 1611
Christopher Y. Choi is an academic researcher from University of Arizona. The author has contributed to research in topics: Drip irrigation & Heat transfer. The author has an hindex of 21, co-authored 24 publications receiving 1468 citations. Previous affiliations of Christopher Y. Choi include Sandia National Laboratories.
Papers
More filters
Coincident detection of crop water stress, nitrogen status and canopy density using ground-based multispectral data.
Edward M. Barnes,T. R. Clarke,S. E. Richards,Paul D. Colaizzi,Julio Haberland,Michael Kostrzewski,Peter Waller,Christopher Y. Choi,E. Riley,Thomas L. Thompson,Robert J. Lascano,H. Li,M.S. Moran,P. C. Robert,R. H. Rust,W. E. Larson +15 more
TL;DR: A water by nitrogen experiment was conducted during the 1999 cotton season near Phoenix, Arizona, where one objective was to test the ability of remotely sensed data to distinguish between water and nitrogen stress as mentioned in this paper.
Journal ArticleDOI
Application of Microbial Risk Assessment to the Development of Standards for Enteric Pathogens in Water Used To Irrigate Fresh Produce
TL;DR: The concentrations of hepatitis A virus (HAV) and Salmonella in irrigation water necessary to achieve a 1:10,000 annual risk of infection, the acceptable level of risk used for drinking water by the U.S. Environmental Protection Agency, were calculated with a quantitative microbial risk assessment approach.
Journal ArticleDOI
Effect of relative humidity on preharvest survival of bacterial and viral pathogens on the surface of cantaloupe, lettuce, and bell peppers.
TL;DR: Of the studied microorganisms, HAV, PRD1, and C. perfringens were found to have the lowest inactivation rates, whereas FCV and E. coli ATCC 25922 tended to become inactivated most rapidly.
Journal ArticleDOI
Estimating Soil Moisture Under Low Frequency Surface Irrigation Using Crop Water Stress Index
TL;DR: In this article, the relationship between the crop water stress index (CWSI) and soil moisture for surface irrigated cotton (Gossypium hirsutum, Delta Pine 90b! at Maricopa, Arizona during the 1998 season was investigated.
Journal ArticleDOI
Comparison of crop contamination by microorganisms during subsurface drip and furrow irrigation
TL;DR: In this article, the authors compared subsurface drip irrigation (SDI) with furrow irrigation (FI) in crop contamination with microbial-contaminated water irrigation, and found that greater contamination of produce occurred in FI plots than in SDI plots.