Sprinkler irrigation in the production of safe rice by soils heavily polluted by arsenic and cadmium

Spanu, Antonino; Langasco, Ilaria; Serra, Marco; Deroma, Mario; Spano, Nadia; Barracu, Francesco; Pilo, Maria Itria; Sanna, Gavino

doi:10.1016/j.chemosphere.2021.130351

Cited by 16 publications

(4 citation statements)

References 37 publications

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“…In addition, sprinkler irrigation system, compared to flood irrigation, significantly reduced arsenic in the harvested rice grain [104]. Similar to this, Alvarenga et al [105] and Spanu et al [106] reported that rice production that has successfully switched to sprinkler irrigation from the traditional flooding system can save water and reduce the buildup of arsenic and cadmium in the rice grain, thereby allowing to produce safe rice in soils where traditional irrigation might only result in the production of inedible rice.…”

Section: Sprinkler Irrigation System For Rice Productionmentioning

confidence: 64%

Water Management for Sustainable Irrigation in Rice (Oryza sativa L.) Production: A Review

et al. 2023

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In the face of the negative impacts of climate change and the accelerated growth of the global population, precision irrigation is important to conserve water resources, improve rice productivity and promote overall efficient rice cultivation, as rice is a rather water-intensive crop than other crops. For several decades, various water conserving technologies have been studied in order to significantly increase water use efficiency (WUE). The objective of this paper is to review the main technologies and approaches for assessing the water requirements of rice crop in order to contribute to water saving in irrigated rice production, after clarifying the performance indicators of the irrigated systems. Several scientific articles from previous studies were consulted and analyzed. These studies showed that irrigation water conservation includes a wide range of practices, staring from the crop irrigation water requirements assessment to the implementation of the water saving practices on the field. In addition, irrigation water conservation technologies could be categorized into three groups, namely water-conserving irrigation systems, water-saving irrigation methods, and water-conserving agronomic practices. The influence of the individual and combined irrigation water use efficiency tools was highlighted. This paper will enable researchers to acquire knowledge on water-saving methods for estimating the rice crop water requirements and thus allow them to effectively contribute to improve the performance of irrigated rice cultivation systems using various water conservation technologies.

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Section: Sprinkler Irrigation System For Rice Productionmentioning

confidence: 64%

Water Management for Sustainable Irrigation in Rice (Oryza sativa L.) Production: A Review

et al. 2023

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“…These results are coherent with several studies that also reported that water-saving irrigation reduces grain arsenic but enhances cadmium [ 24 , 62 ]. However, Spanu et al [ 17 , 28 ] who studied the effect of the irrigation method on the bioaccumulation of toxic elements in rice grain, indicated that sprinkler irrigation could be interesting management in order to reduce the Cd concentration in rice grain, although these authors observed that this result could depend on the crop year. In this sense, the research carried out to determine the medium-term, as in the present study, or long-term effects take on even greater importance.…”

Section: Resultsmentioning

confidence: 99%

“…However, the trends found in studies evaluating the effects of rice water management on metal accumulation in grain have often been contradictory. Thus, whereas different studies have found that the transition from flooding to aerobic irrigation in rice growing decreased considerably the As concentration but enhanced Cd transfer to grain [ 26 , 27 ], Spanu et al [ 17 , 28 ] showed a decrease in As and Cd grain concentration under a sprinkler in comparison to flooding irrigation. Therefore, further research is needed to develop an effective rice management in order to reduce the uptake of toxic elements.…”

Section: Introductionmentioning

confidence: 99%

Medium-Term Effects of Sprinkler Irrigation Combined with a Single Compost Application on Water and Rice Productivity and Food Safety

Peña

Martín-Franco

Fernández-Rodríguez

et al. 2023

Plants

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Traditional rice (Oryza sativa L.) management (tillage and flooding) is unsustainable due to soil degradation and the large amount of irrigation water used, an issue which is exacerbated in the Mediterranean region. Therefore, there is a need to explore rice management strategies in order to improve water-use efficiency and ensure its sustainability. Thus, field experiments were conducted to determine the medium-term effects of different irrigation and tillage methods combined with a single compost application on water and rice productivity, as well as food safety in a semiarid Mediterranean region. The management systems evaluated were: sprinkler irrigation in combination with no-tillage (SNT), sprinkler irrigation in combination with conventional tillage (ST), which were implemented in 2015, and flooding irrigation in combination with conventional tillage (FT), and their homologues (SNT-C, ST-C, and FT-C) with single compost application in 2015. In reference to rice grain yield, the highest values were observed under ST treatment with 10 307 and 11 625 kg ha−1 in 2018 and 2019 respectively; whereas between FT and SNT there were no significant differences, with 8 140 kg ha−1 as mean value through the study. Nevertheless, sprinkler irrigation allowed saving 55% of the total amount of water applied in reference to flooding irrigation. Furthermore, the highest arsenic concentration in grains was found under FT but it decreased with compost application (FT-C) and especially with sprinkler irrigation, regardless of tillage management systems. However, sprinkler irrigation favors the cadmium uptake by plants, although this process was reduced under SNT in reference to ST, and especially under amended compost treatments. Therefore, our results suggested that a combination of sprinkler irrigation and compost application, regardless of the tillage system, could be an excellent strategy for rice management for the Mediterranean environment in terms of water and crop productivity as well as food safety.

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“…Both As and Cd are toxic elements, recognized as Class I carcinogens. The bioaccumulation of As in rice has been a topic of worldwide resonance in the last thirty years, and many efforts have been made to reduce its bioaccumulation in the edible fraction, even in heavily polluted soils including water management options [ 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. The dietary intake of As and Cd and the health risk to people consuming contaminated rice have been reported globally [ 11 , 12 , 13 , 14 , 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Removal of Toxic and Essential Nutrient Elements from Commercial Rice Brands Using Different Washing and Cooking Practices: Human Health Risk Assessment

Shahriar

Paul

Rahman

2022

IJERPH

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This study determined the influence of different cooking procedures on the removal of toxic elements (TEs) including arsenic (As), cadmium (Cd), and lead (Pb) along with other nutrient elements from different commercially available rice brands sold in Bangladeshi markets. We observed 33%, 35%, and 27% average removal of As, Cd, and Pb accordingly from rice when cooked with a rice to water ratio of 1:6 after washing 5 times. We also found a significant reduction in essential elements: Zn (17%), Cu (10%), Mn (22%), Se (49%), and Mo (22%), when rice cooking was performed as in traditional practice. Daily dietary intakes were found to be between 0.36 and 1.67 µg/kgbw for As, 0.06 and 1.15 µg/kgbw for Cd, and 0.04 and 0.17 µg/kgbw for Pb when rice was cooked by the rice cooker method (rice:water 1:2), while in the traditional method (rice:water 1:6) daily intake rates ranged from 0.23 to 1.3 µg/kgbw for As, 0.04 to 0.88 µg/kgbw for Cd, and 0.03 to 0.15 µg/kgbw for Pb for adults. The HQ and ILCR for As, Cd, and Pb revealed that there is a possibility of noncarcinogenic and carcinogenic risk for As but no appreciable risk for Cd and Pb from consumption of rice.

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Sprinkler irrigation in the production of safe rice by soils heavily polluted by arsenic and cadmium

Cited by 16 publications

References 37 publications

Water Management for Sustainable Irrigation in Rice (Oryza sativa L.) Production: A Review

Water Management for Sustainable Irrigation in Rice (Oryza sativa L.) Production: A Review

Medium-Term Effects of Sprinkler Irrigation Combined with a Single Compost Application on Water and Rice Productivity and Food Safety

Removal of Toxic and Essential Nutrient Elements from Commercial Rice Brands Using Different Washing and Cooking Practices: Human Health Risk Assessment

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