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Publication Open Access Accumulation and distribution of some heavy metals in water, soil and rice fields along the Pradu and Phi Lok Canals, Samut Songkhram Province, Thailand(2011-04) Roongrawee Kingsawat; Raywadee Roachanakanan; Raywadee Roachanakanan; Mahidol University. Faculty of Environment and Natural Resource StudiesThis study aims to determine concentrations of heavy metals (Cd, Cu, and Zn) in the water, soil, and rice in paddy fields, and to compare heavy metal concentrations in the water, soil, and four parts of the rice plant (root, shoot, grain, and husk...) between organic paddy fields and conventional paddy fields. The study area was the Pradu Canal (sites A and C) and the Phi Lok Canal (site B) in Phraek Nam Daeng Sub-district, Samut Songkhram Province, Thailand. Data was collected from August 2007Item Metadata only Assessing Soil Organic Carbon, Soil Nutrients and Soil Erodibility under Terraced Paddy Fields and Upland Rice in Northern Thailand(2022-02-01) Arunrat N.; Sereenonchai S.; Kongsurakan P.; Hatano R.; Mahidol UniversityTerracing is the oldest technique for water and soil conservation on natural hilly slopes. In Northern Thailand, terraced paddy fields were constructed long ago, but scientific questions remain on how terraced paddy fields and upland rice (non...-terraced) differ for soil organic carbon (SOC) stocks, soil nutrients and soil erodibility. Therefore, this study aims to evaluate and compare SOC stocks, soil nutrients and soil erodibility between terraced paddy fields and upland rice at Ban Pa Bong PiangPublication Open Access Greenhouse Gas Mitigation Strategies for Lowland Rice Cultivation under Common Farm Practices, and Accompanying Influencing Factors for Acceptability among Local Farmers in Myanmar(2025) Myo Thet Tin; Amnat Chidthaisong; Nathsuda Pumijumnong; Noppol Arunrat; Monthira Yuttithamand Abatement cost) while still maintaining an acceptable rice yield. To do so, methane (CH4) and nitrous oxide (N2O) emissions, and grain yields from rice fields were explored, under different farmer fertilizer application methods and two different crop... establishment options currently practiced by local farmers, namely transplanted rice (TPR) and wet bed direct seeded rice (WDSR). Both were measured in field experiments. In this study, it was found that rice cultivation emitted CH4 and N2O at the rate of 3.23±0Publication Metadata only Effects of water and rice straw management practices on water savings and greenhouse gas emissions from a double-rice paddy field in the Central Plain of Thailand(2019-07-01) Sumana Maneepitak; Hayat Ullah; Avishek Datta; Rajendra P. Shrestha; Sangam Shrestha; Boonlue Kachenchart; Faculty of Environment and Resource Studies, Mahidol University; Asian Institute of Technology Thailandsystem, farmers often burn or incorporate rice straw (RS) in the field. The effects of the combined use of water and RS management on irrigated lowland double-rice cropping, with respect to irrigation water savings, grain yields, and greenhouse gas (GHG...) emissions, remain largely unknown. Field experiments of two consecutive rice-growing seasons in 2016–2017 were conducted at the Ayutthaya Rice Research Center in Ayutthaya, Thailand, to investigate the effects of different water and RS management practicesItem Metadata only Diversity, distribution and Wolbachia infection of rice field odonate insects in Thailand(Mahidol University. Mahidol University Library and Knowledge Center, 2003) Apisit Thipaksorn; Pattamaporn KittayapongItem Metadata only An expert system development for weed identification in paddy field(Mahidol University. Mahidol University Library and Knowledge Center, 2003) Sutasana Kamnerdtong; Pornsiri Sinsawasdi; Anuchat PoungsomleeItem Metadata only 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 Universityon 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. InformationItem Metadata only Soil Microbial Diversity and Community Composition in Rice–Fish Co-Culture and Rice Monoculture Farming System(2022-08-01) Arunrat N.; Sansupa C.; Kongsurakan P.; Sereenonchai S.; Hatano R.; Mahidol UniversitySoil microorganisms play an important role in determining nutrient cycling. The integration of fish into rice fields can influence the diversity and structural composition of soil microbial communities. However, regarding the rice–fish co-culture... both paddy rice fields belonged to Actinobacteria, Chloroflexi, Proteobacteria, Acidobacteria, and Planctomycetes. The taxa Nitrosporae, Rokubacteria, GAL15, and Elusimicrobia were significantly different between both rice fields. At the genus levelPublication Metadata only 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 Developmentcould 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 wereItem Metadata only 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 Universitythoroughly 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