Agronomic Strategies for Reducing Arsenic Risk in Rice

Ishikawa, Shinya; Arao, Tomohito; Makino, Tomoyuki

doi:10.1007/978-981-13-2565-6_11

Cited by 11 publications

(7 citation statements)

References 47 publications

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“…Rice is mostly cultivated under flooded conditions, resulting in anaerobic conditions that promote the accumulation of several-fold higher arsenic in rice than in other cereals ( Shikawa et al., 2019 ; Upadhyay et al., 2019 , 2020 ). In agricultural fields, the average As concentration from the use of arsenic-comprising pesticides and defoliants ranges widely from 5–2,553 mg kg –1 ( Anawar et al., 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of nanomaterials and their counterparts in improving rice growth and yield under arsenic contamination

Li,

Wang,

et al. 2024

Front. Plant Sci.

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Arsenic (As) pollution in rice (Oryza sativa L.), a staple food for over 3.5 billion people, is a global problem. Mixed effects of Zn, Cu, and Si amendments on plant growth and yield, including in the presence of As pollution have been reported in previous studies. To better investigate the effectiveness of these amendments on rice growth, yield, and As accumulation, we conducted a rice greenhouse experiment with 11 treatments, including control pots with and without As contamination and pots with amendments of ZnO, CuO, and SiO2 nanoparticles (ZnO NPs, CuO NPs, and SiO2 NPs), their ionic counterparts (ZnSO4, CuSO4, and Na2SiO3), and bulk particles (ZnO BPs, CuO BPs, and SiO2 BPs). Compared with the background soil, the treatment of adding As decreased rice plant height, panicle number, and grain yield by 16.5%, 50%, and 85.7%, respectively, but significantly increased the As accumulation in milled rice grains by 3.2 times. Under As contamination, the application of Zn amendments increased rice grain yield by 4.6–7.3 times; among the three Zn amendments, ZnSO4 performed best by fully recovering grain yield to the background level and significantly reducing grain AsIII/total As ratio by 46.9%. Under As contamination, the application of Cu amendments increased grain yield by 3.8–5.6 times; all three Cu amendments significantly reduced grain AsIII/total As ratio by 20.2–65.6%. The results reveal that Zn and Cu amendments could promote rice yield and prevent As accumulation in rice grains under As contamination. Despite the observed reduction in As toxicity by the tested NPs, they do not offer more advantages over their ionic counterparts and bulk particles in promoting rice growth under As contamination. Future field research using a broader range of rice varieties, investigating various As concentrations, and encompassing diverse climate conditions will be necessary to validate our findings in achieving more extensive understanding of effective management of arsenic contaminated rice field.

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Section: Introductionmentioning

confidence: 99%

Effectiveness of nanomaterials and their counterparts in improving rice growth and yield under arsenic contamination

Li,

Wang,

et al. 2024

Front. Plant Sci.

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“…Rice is a major source of food in Asian countries and hence the accumulation of As in rice in this region has been marked as a serious threat (Upadhyay et al 2019a;Yadav et al 2021). Prolonged As exposure to humans can even cause ailments like skin, lungs, kidney and liver cancer, hyperpigmentation, and keratosis (Golui et al 2017;Shikawa et al 2019). The availability of As in the soil is in uenced by the soil texture, pH, organic matter, redox process, anion and cations (silicate, sulphate, nitrate) present in the soil ).…”

Section: Introductionmentioning

confidence: 99%

Assessment of arsenic contamination in agricultural soils of Gangetic basin in Buxar, Bhojpur and Patna districts in Bihar, India

Pathak

Upadhyay

Shukla

et al. 2022

Preprint

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Arsenic (As) is a nonessential and toxic metalloid found in sediments, soils and aquatic environments. The contamination of As is a serious problem in South and Southeast Asia threatening the health of millions of people. In this study, 71 soil samples were collected from agricultural fields from Bihar, India situated in the middle Gangetic basin to understand the status of As contamination. The 71 samples from Bihar were taken from three districts; Buxar (n = 21), Bhojpur (n = 34) and Patna (n = 16). Arsenic concentration in soil samples was determined by the wavelength dispersive X-ray fluorescence (WD-XRF) method. The pH, oxidation reduction potential (ORP), organic matter (OM) and cation exchange capacity (CEC) of the samples were also analysed. The mean and range of As concentration were found to be 16.72 mg kg− 1 (13.9–19.4 mg kg− 1), 17.18 mg kg− 1 (13.9–21.1 mg kg− 1) and 17.16 mg kg− 1 (14.8–20.5 mg kg− 1) in Buxar, Bhojpur and Patna, respectively. Of the 71 samples from Bihar, five samples had As levels equal to or higher than the maximum permissible limit i.e. 20 mg kg− 1 for agricultural soil. These five samples were taken from the village of Salempur, Benwaliya, Gundi, Daulatpur and Katesar. To assess the contamination level, various indices like contamination factor, ecological risk assessment and geoaccumulation index were calculated, which indicated “moderate to high” As contamination in the studied areas. The study provides information about the As contamination scenario in middle Gangetic basin and proposes to conduct more comprehensive surveys to understand As contamination in the hugely populated state of Bihar.

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“…Arsenic (As) is an important geogenic contaminant found ubiquitously in the earth threatening the health of 150 million people worldwide [1][2]. The major sources of As exposure to humans includes drinking water and different food items, especially rice.…”

Section: Introductionmentioning

confidence: 99%

“…The major sources of As exposure to humans includes drinking water and different food items, especially rice. Exposure of As is associated with various chronic and acute health problems to humans that include skin lesions, cardiovascular diseases, diabetes, cancer, and so on [2]. The envirmental pollutant As is bound to Fe hydroxides, oxyhydroxides, and oxides that released into the groundwater through biogeochemical processes and resulted in widespread As contamination in Bengal delta [3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Research studies indicate that, long-term use of As contaminated groundwater for irrigation purposes may result in elevated As concentration in soils and plants, and may lead to crop yield loss and elevated As concentration in cereals, vegetables and other agricultural products [7][8][9]. Rice can accumulate several-fold higher As than other cereal crops such as wheat and maize [2,6,10]. Every year approximately, 36.60 million tons of rice is produced from 11.42 million hectares of land of Bangladesh [11].…”

Section: Introductionmentioning

confidence: 99%

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Growth, Yield and Grain Arsenic Concentration of Rice Cultivars under Varying Levels of Soil Arsenic Contamination

Islam

Borna²,

Menon³

et al. 2022

AJSSPN

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Arsenic (As) contamination in groundwater is a severe and widespread problem in Bangladesh and their exposure cause a serious health hazard in human history. A pot experiment was conducted in the net-house of the Department of Soil Science, Bangladesh Agricultural University, Mymensingh using fourteen cultivars of rice (Summer rice) to evaluate the effects of varying levels of As contamination on growth, yield and grain As contents. Arsenic contamination adversely affected tillering, filled grains, grain yield and straw yield of all rice cultivars, however, the effect varied among the cultivars. In As control treatment, the highest grain yield (75.66 g pot-1) was observed in BR 11 while the lowest grain yield (8.73 g pot-1) was in BRRI dhan4. Application of 20 ppm As to the soil resulted in complete death of BR 11, BRRI dhan30, BRRI dhan33, BRRI dhan34, BRRI dhan41, Binadhan-4, Biroy and Kalizeera cultivars. Arsenic contamination significantly increased As concentration in grain for all cultivars of rice. Arsenic concentration on rice grains grown in soils without As contamination ranged from 0.06 ppm in BR 11 to 0.13 ppm in BRRI dhan32 and BRRI dhan41, while such values ranged from 0.231 ppm in Kalizeera with 10 ppm As to 0.743 ppm in BRRI dhan40 with applied 20 ppm As to soils. Among the 14 rice cultivars BRRI dhan32, BR 11 and Najirshail appeared to be more tolerant to As contamination.

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Agronomic Strategies for Reducing Arsenic Risk in Rice

Cited by 11 publications

References 47 publications

Effectiveness of nanomaterials and their counterparts in improving rice growth and yield under arsenic contamination

Effectiveness of nanomaterials and their counterparts in improving rice growth and yield under arsenic contamination

Assessment of arsenic contamination in agricultural soils of Gangetic basin in Buxar, Bhojpur and Patna districts in Bihar, India

Growth, Yield and Grain Arsenic Concentration of Rice Cultivars under Varying Levels of Soil Arsenic Contamination

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