Managing Water Tables to Improve Drainage Water Quality in Quebec, Canada

Madramootoo, Chandra A.; Helwig, T.; Dodds, Georges T.

doi:10.13031/2013.7034

Cited by 21 publications

(13 citation statements)

References 11 publications

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“…Potential overflow points should be identified and eliminated. It is also important to determine (potential) points of contamination because control measures are bound to be more effective if focused on eliminating contamination at the source (Madramootoo et al, 1997;Pachepsky et al, 2011). Irrigation wells, functional septic, water and sewage systems should be installed and properly maintained especially during periods of excessive rainfall to prevent pathogen contamination (Buck et al, 2003;Olaimat and Holley, 2012).…”

Section: Precautions To Reduce Bacterial Contamination Of Produce In mentioning

confidence: 99%

Sources and contamination routes of microbial pathogens to fresh produce during field cultivation: A review

2018

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Foodborne illness resulting from the consumption of contaminated fresh produce is a common phenomenon and has severe effects on human health together with severe economic and social impacts. The implications of foodborne diseases associated with fresh produce have urged research into the numerous ways and mechanisms through which pathogens may gain access to produce, thereby compromising microbiological safety. This review provides a background on the various sources and pathways through which pathogenic bacteria contaminate fresh produce; the survival and proliferation of pathogens on fresh produce while growing and potential methods to reduce microbial contamination before harvest. Some of the established bacterial contamination sources include contaminated manure, irrigation water, soil, livestock/ wildlife, and numerous factors influence the incidence, fate, transport, survival and proliferation of pathogens in the wide variety of sources where they are found. Once pathogenic bacteria have been introduced into the growing environment, they can colonize and persist on fresh produce using a variety of mechanisms. Overall, microbiological hazards are significant; therefore, ways to reduce sources of contamination and a deeper understanding of pathogen survival and growth on fresh produce in the field are required to reduce risk to human health and the associated economic consequences.

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Section: Precautions To Reduce Bacterial Contamination Of Produce In mentioning

confidence: 99%

Sources and contamination routes of microbial pathogens to fresh produce during field cultivation: A review

2018

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“…Water table control has been tested for different crops and regions around the world and identified as the best water management practice for reducing the environmental impact and maintaining or enhancing crop yield [14,15]. Determining the optimal WTD is then of first importance for using water table control.…”

Section: Introductionmentioning

confidence: 99%

Water Table Control for Increasing Yield and Saving Water in Cranberry Production

et al. 2015

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Abstract:Water table control has been successfully tested to improve the sustainability of water management in cranberry production. In the province of Québec (Canada), three sites were investigated to determine the optimum water table depth below soil surface (WTD) using three criteria: (1) increasing yield without decreasing fruit quality; (2) minimizing the amount of water needed by the sprinkler system; and (3) avoiding hypoxic stresses in the rhizosphere. Our results show that the final yield, the berry sugar content, the total number of berries, the number of berries per upright, and the fruit set were maximized when the WTD was 60 cm. Sprinkler water savings of 77% were obtained where the WTD was shallower than 66 cm. In order to avoid hypoxic conditions due to poor drainage, the water level in the canals surrounding the beds should be lowered to 80 cm when a rainfall or a frost protection irrigation is anticipated. All sides of a block of beds must be surrounded by canals to ensure a uniform WTD and to avoid lateral hydraulic gradients that could cause peripheral seepage losses.

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“…In most cases, measured NO 3 load reductions in a field using drainage water management were largely dependent on reductions in the flow volume. There have also been observations of reductions in NO 3 concentration, often attributed to increased denitrification within the managed soil profile (Lalonde et al 1996;Mejia et al 1998;Madramootoo et al 2001;Gilliam et al 1979).…”

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confidence: 99%

Impacts of drainage water management on subsurface drain flow, nitrate concentration, and nitrate loads in Indiana

Adeuya¹,

Utt²,

Frankenberger³

et al. 2012

Journal of Soil and Water Conservation

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Drainage water management is a conservation practice that has the potential to reduce drainage outflow and nitrate (NO 3 ) loss from agricultural fields while maintaining or improving crop yields. The goal of this study was to quantify the impact of drainage water management on drain flow, NO 3 concentration, and NO 3 load from subsurface drainage on two farms in Indiana. Paired field studies were conducted following the paired watershed statistical approach modified to accommodate autocorrelation. Annual NO 3 load reductions ranged from 15% to 31%, with an overall reduction of 18% to 23% over the 2-year period, resulting from reductions in both flow and NO 3 concentration. Although the study revealed weaknesses in using the paired statistical approach for a dynamic practice like drainage water management, the results of this study support the use of drainage water management as a conservation practice and provide information for decision-makers about the level of benefits that can be anticipated.

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Managing Water Tables to Improve Drainage Water Quality in Quebec, Canada

Cited by 21 publications

References 11 publications

Sources and contamination routes of microbial pathogens to fresh produce during field cultivation: A review

Sources and contamination routes of microbial pathogens to fresh produce during field cultivation: A review

Water Table Control for Increasing Yield and Saving Water in Cranberry Production

Impacts of drainage water management on subsurface drain flow, nitrate concentration, and nitrate loads in Indiana

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