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    Seasonal methane emissions and agronomic performance of Indonesia’s high-yielding rice cultivars on the north coastal rice fields of Central Java, Indonesia
    (2024-12-01) Kartikawati R.; Kurniasih B.; Putra E.T.S.; Hanudin E.; Arunrat N.; Kartikawati R.; Mahidol University
    on methane emissions in coastal rice fields, particularly in salt-affected soil, is still limited. This study aimed to measure the methane emissions from different high-yielding rice varieties and examine the association with agronomic performance. The study...Rice contributes significantly to methane emissions. In the north coastal region of Central Java Island, flooding irrigation for high-yielding rice cultivation is used throughout the rice-producing season to reduce the salinity effect. Information
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    Effect of water and rice straw management practices on yield and water productivity of irrigated lowland rice in the Central Plain of Thailand
    (2019-01-01) Sumana Maneepitak; Hayat Ullah; Kritkamol Paothong; Boonlue Kachenchart; Avishek Datta; Rajendra P. Shrestha; Faculty of Environment and Resource Studies, Mahidol University; Asian Institute of Technology Thailand; Division of Rice Research and Development
    could potentially reduce irrigation water input for rice cultivation through alteration of soil submergence period with period of soil non-submergence (unsaturated soil conditions) during the growing season. Rice straw is often scattered in the field... after harvest or burned in intensive rice cultivation systems. Response of irrigated lowland rice with respect to grain yield and water use under different water and rice straw management practices largely remains unknown. Field experiments were
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    Heavy metal contamination and potential health risks in upland rice-producing soils of rotational shifting cultivation in northern Thailand
    (2024-12-01) Arunrat N.; Kongsurakan P.; Sereenonchai S.; Arunrat N.; Mahidol University
    thoroughly explored. This study aimed to evaluate the contamination of six heavy metals (Arsenic (As), Mercury (Hg), Cadmium (Cd), Lead (Pb), Copper (Cu), and Chromium (Cr)) in upland rice across RSC fields with varying fallow periods and assess... the associated health risks from rice consumption. Four RSC fields with 5, 6, 10, and 12-year fallow periods were examined. The RSC-6Y and RSC-12Y fields were used for upland rice cultivation in 2022, while the RSC-5Y and RSC-10Y fields were cultivated in 2023
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    Alternative cropping systems for greenhouse gases mitigation in rice field: a case study in Phichit province of Thailand
    (2016-10-01) Noppol Arunrat; Can Wang; Nathsuda Pumijumnong; Tsinghua University; Faculty of Environment and Resource Studies, Mahidol University
    abatement potential is −7.34 ton CO2eq ha−1, the negative abatement cost is −2161.11 Baht ha−1and the negative MAC is −294.48 Baht ton−1CO2eq. Alternative cropping systems with selecting crop rotation not only reduce GHG emissions in the rice field but also...© 2016 Elsevier Ltd Seeking new practical approaches as alternative ways for greenhouse gas (GHG) mitigation to incentivize farmers' behaviors regarding farming is a challenging point. Thus, five alternative crop rotations (rice, corn, mung bean
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    Reprint of Alternative cropping systems for greenhouse gases mitigation in rice field: a case study in Phichit province of Thailand
    (2016-10-15) Noppol Arunrat; Can Wang; Nathsuda Pumijumnong; Tsinghua University; Faculty of Environment and Resource Studies, Mahidol University
    abatement potential is −7.34 ton CO2eq ha−1, the negative abatement cost is −2161.11 Baht ha−1and the negative MAC is −294.48 Baht ton−1CO2eq. Alternative cropping systems with selecting crop rotation not only reduce GHG emissions in the rice field but also...© 2016 Elsevier Ltd Seeking new practical approaches as alternative ways for greenhouse gas (GHG) mitigation to incentivize farmers’ behaviors regarding farming is a challenging point. Thus, five alternative crop rotations (rice, corn, mung bean
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    Cadmium (Cd) and zinc (Zn) accumulation by Thai rice varieties and health risk assessment in a Cd–Zn co-contaminated paddy field: Effect of soil amendments
    (2021-09-01) Patompong Saengwilai; Weeradej Meeinkuirt; Mahidol University; Ministry of Higher Education, Science, Research and Innovation
    Zinc mining and smelting activities result in cadmium (Cd) and zinc (Zn) contamination in rice grains, causing deleterious impacts on human health and local economies. Here, we investigated the effects of soil amendments, including mixtures... of dicalcium phosphate with cattle manure (T1) and leonardite (T2), on soil physicochemical properties as well as growth performance and accumulation of Cd and Zn among three commercial Thai rice varieties: Khao Dok Mali 105 (KDML105), Phitsanulok2 (PSL2
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    Root system architecture influencing cadmium accumulation in rice (Oryza sativa L.)
    (2019-01-02) Weeradej Meeinkuirt; Theerawut Phusantisampan; Patompong Saengwilai; King Mongkut's University of Technology North Bangkok; Mahidol University; Commission of Higher Education
    © 2018, © 2018 Taylor & Francis Group, LLC. Cadmium (Cd) contamination in paddy fields affects human health because of the consumption of Cd-contaminated rice. In the current study, we demonstrated that variation in root system architecture (RSA...) influenced Cd uptake by rice. Rice cultivars consisting of KDML105, Mali Dang, Pitsanulok2 and Niaw San-pah-tawng were assessed in hydroponics and mesocosms while KDML 105, Pitsanulok2, and RD53 were used in field experiments. In hydroponics, root number
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    Emission of air pollutants from rice residue open burning in Thailand, 2018
    (2018-11-15) Agapol Junpen; Jirataya Pansuk; Orachorn Kamnoet; Penwadee Cheewaphongphan; Savitri Garivait; Faculty of Environment and Resource Studies, Mahidol University; National Institute for Environmental Studies of Japan; Thailand Ministry of Education; King Mongkut s University of Technology Thonburi
    in diameter (PM10) concentration air quality sites in provinces with large paddy rice planting areas from 2010-2017. According to the results, 61.87 megaton (Mt) of rice residue were generated, comprising 21.35 Mt generated from the irrigated fields and 40....53 Mt generated from the rain-fed field. Only 23.0% of the total rice residue generated were subject to open burning-of which nearly 32% were actually burned in the fields. The emissions from such rice residue burning consisted of: 5.34 ± 2.33 megaton
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    Variation in avian responses to rice intensification in the central plains of Thailand guides conservation opportunities
    (2023-10-01) Angkaew R.; Ngoprasert D.; Powell L.A.; Limparungpatthanakij W.; Round P.D.; Gale G.A.; Mahidol University
    Multiple studies indicate that grassland and farmland birds are declining in temperate zones, but few have been conducted in the tropics. Here we examined effects of rice intensification on landbird communities and estimated habitat-specific... densities of eight songbird species of national and/or global conservation concern in the central plains of Thailand where rice is intensively cultivated often with triple annual rice crops. From 1410 point-counts, we observed 236 species including 26
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    Environmental, Human and Ecotoxicological Impacts of Different Rice Cultivation Systems in Northern Thailand
    (2023-02-01) Toolkiattiwong P.; Arunrat N.; Sereenonchai S.; Mahidol University
    .15 kg CO2eq kg−1 rice yield, followed by lowland rice (1.02 kg CO2eq kg−1 rice yield) and upland rice (0.17 kg CO2eq kg−1 rice yield) fields. Moreover, lowland rice cultivation generated the highest total WF with 1701.6 m3 ton−1, followed by terraced... rice (1422.1 m3 ton−1) and upland rice (1283.2 m3 ton−1). The lowland rice fields had the most impact on human health and freshwater ecotoxicity, followed by the terraced and upland rice cultivation systems. The results also showed that most