Sprinkler irrigation of rice fields reduces grain arsenic but enhances cadmium

Moreno-Jiménez, Eduardo; Meharg, Andrew A.; Smolders, Erik; Manzano, Rebeca; Becerra, Daniel; Sánchez-Llerena, Javier; Albarrán, Ángel; López-Piñero, Antonio

doi:10.1016/j.scitotenv.2014.03.106

Cited by 92 publications

(48 citation statements)

References 37 publications

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“…The report of Talukdar et al [168] support the observations that, under aerobic water management practices, rice takes up less arsenic (0.23-0.26 ppm) than under anaerobic practices (0.60-0.67 ppm). To reduce the arsenic in rice grains, sprinkler irrigation practice is also having positive impacts [169,170]. Differential irrigation practices also influence the Fe-plaque formation and arsenic uptake by rice [166].…”

Section: Water Management and Irrigation Practicesmentioning

confidence: 99%

Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review

Mitra¹,

et al. 2017

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According to recent reports, millions of people across the globe are suffering from arsenic (As) toxicity. Arsenic is present in different oxidative states in the environment and enters in the food chain through soil and water. In the agricultural field, irrigation with arsenic contaminated water, that is, having a higher level of arsenic contamination on the top soil, which may affects the quality of crop production. The major crop like rice (Oryza sativa L.) requires a considerable amount of water to complete its lifecycle. Rice plants potentially accumulate arsenic, particularly inorganic arsenic (iAs) from the field, in different body parts including grains. Different transporters have been reported in assisting the accumulation of arsenic in plant cells; for example, arsenate (As V ) is absorbed with the help of phosphate transporters, and arsenite (As III ) through nodulin 26-like intrinsic protein (NIP) by the silicon transport pathway and plasma membrane intrinsic protein aquaporins. Researchers and practitioners are trying their level best to mitigate the problem of As contamination in rice. However, the solution strategies vary considerably with various factors, such as cultural practices, soil, water, and environmental/economic conditions, etc. The contemporary work on rice to explain arsenic uptake, transport, and metabolism processes at rhizosphere, may help to formulate better plans. Common agronomical practices like rain water harvesting for crop irrigation, use of natural components that help in arsenic methylation, and biotechnological approaches may explore how to reduce arsenic uptake by food crops. This review will encompass the research advances and practical agronomic strategies on arsenic contamination in rice crop.

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Section: Water Management and Irrigation Practicesmentioning

confidence: 99%

Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review

Mitra¹,

et al. 2017

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“…Cadmium uptake in rice was substantially higher when irrigating with sprinklers. Cadmium concentrations in rice grain reached 50 µg Cd per kg during the course of the seven-year experiment on the sprinkler irrigated plots [297].…”

Section: Water Managementmentioning

confidence: 93%

“…Moreno-Jiménez et al [297] also observed substantial reductions in arsenic uptake when irrigating rice with sprinklers, in comparison with continuous flooding. During a seven-year experiment conducted in Spain, concentrations of inorganic arsenic in rice grain were up to two times higher on flooded plots.…”

Section: Water Managementmentioning

confidence: 94%

Managing Water and Soils to Achieve Adaptation and Reduce Methane Emissions and Arsenic Contamination in Asian Rice Production

Wichelns

2016

Water

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Rice production is susceptible to damage from the changes in temperature and rainfall patterns, and in the frequency of major storm events that will accompany climate change. Deltaic areas, in which millions of farmers cultivate from one to three crops of rice per year, are susceptible also to the impacts of a rising sea level, submergence during major storm events, and saline intrusion into groundwater and surface water resources. In this paper, I review the current state of knowledge regarding the potential impacts of climate change on rice production and I describe adaptation measures that involve soil and water management. In many areas, farmers will need to modify crop choices, crop calendars, and soil and water management practices as they adapt to climate change. Adaptation measures at the local, regional, and international levels also will be helpful in moderating the potential impacts of climate change on aggregate rice production and on household food security in many countries. Some of the changes in soil and water management and other production practices that will be implemented in response to climate change also will reduce methane generation and release from rice fields. Some of the measures also will reduce the uptake of arsenic in rice plants, thus addressing an important public health issue in portions of South and Southeast Asia. Where feasible, replacing continuously flooded rice production with some form of aerobic rice production, will contribute to achieving adaptation objectives, while also reducing global warming potential and minimizing the risk of negative health impacts due to consumption of arsenic contaminated rice.

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“…Finally, intermittent flooding and sprinkler irrigation of rice paddies may also decrease As uptake by rice due to oxidative As immobilization in the rice rhizosphere [74•, 89]. However, such strategies require further investigation to quantify their long-term utility, impacts on rice yields, and potential for enhancing plant uptake of co-contaminants, such as cadmium [89][90][91].…”

Section: Water Managementmentioning

confidence: 99%

Soil Pollution Due to Irrigation with Arsenic-Contaminated Groundwater: Current State of Science

et al. 2015

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Food with elevated arsenic concentrations is becoming widely recognized as a global threat to human health. This review describes the current state of knowledge of soil pollution derived from irrigation with arsenic-contaminated groundwater, highlighting processes controlling arsenic cycling in soils and resulting arsenic impacts on crop and human health. Irrigation practices utilized for both flooded and upland crops have the potential to load arsenic to soils, with a host of environmental and anthropogenic factors ultimately determining the fate of arsenic. Continual use of contaminated groundwater for irrigation may result in soils with concentrations sufficient to create dangerous arsenic concentrations in the edible portions of crops. Recent advances in low-cost water and soil management options show promise for mitigating arsenic impacts of polluted soils. Better understanding of arsenic transfer from soil to crops and the controls on long-term soil arsenic accumulation is needed to establish effective arsenic mitigation strategies within vulnerable agronomic systems.

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Sprinkler irrigation of rice fields reduces grain arsenic but enhances cadmium

Cited by 92 publications

References 37 publications

Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review

Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review

Managing Water and Soils to Achieve Adaptation and Reduce Methane Emissions and Arsenic Contamination in Asian Rice Production

Soil Pollution Due to Irrigation with Arsenic-Contaminated Groundwater: Current State of Science

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