Article
Environmental Sciences
Antonino Spanu, Ilaria Langasco, Marco Serra, Mario Antonello Deroma, Nadia Spano, Francesco Barracu, Maria Pilo, Gavino Sanna
Summary: The study investigates the effectiveness of sprinkler irrigation in minimizing bioaccumulation of As and Cd in rice grains, showing that under severe pollution conditions, sprinkler irrigation can reduce the amounts of As and Cd in rice grains to below the maximum concentrations set by the European Community, providing a simple and valuable tool for producing safe rice from contaminated soils.
Article
Environmental Sciences
MD. Rokonuzzaman, Zh Ye, C. Wu, Wc Li
Summary: The occurrence of arsenic in groundwater and its accumulation in rice grains is a global health concern. This study found that utilizing alternate wetting and drying (AWD) irrigation with temporarily stored groundwater (TSG) can effectively reduce arsenic content in rice grains. The research also highlights the importance of irrigation management and rice variety selection in minimizing arsenic accumulation in rice grains.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
F. Campos, A. Roel, G. Carracelas, M. Verger, R. Huertas, C. Perdomo
Summary: This research successfully reduced inorganic arsenic levels in polished rice grain by using different irrigation and phosphorous fertilization practices while maintaining crop yield and water productivity.
Article
Agronomy
Victor Meriguetti Pinto, Andre Froes de Borja Reis, Marina Luciana Abreu de Melo, Klaus Reichardt, Deivison Santos, Quirijn de Jong van Lier
Summary: Drought events and water use conflicts in rice-growing areas of the Brazilian Cerrado necessitate efficient water management. This study models the performance of rice cultivation and water productivity in response to irrigation management under different rainfall levels. Results show that water-saving irrigation can reduce deep percolation losses and increase water productivity in the region.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Environmental Sciences
Antonino Spanu, Ilaria Langasco, Francesco Barracu, Mario Antonello Deroma, Jose Fermin Lopez-Sanchez, Andrea Mara, Paola Meloni, Maria Itria Pilo, Nadia Spano, Gavino Sanna
Summary: This study aimed to investigate the influence of different irrigation methods on the speciation of arsenic in rice and measure the concentrations of As(III), As(V), DMA, and MMA in different rice genotypes. The results showed that the concentrations of As(III) and DMA were roughly equal in rice irrigated with continuous flooding, only As(III) was found in rice irrigated with periodic saturation, and As(V) was predominantly present over As(III) in rice irrigated with sprinkler irrigation. Organic arsenic species were below the limits of detection in rice irrigated by intermittent methods. Principal component analysis also revealed significant differences in arsenic speciation as a function of rice genotype.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Agronomy
Matthew Champness, Carlos Ballester, John Hornbuckle
Summary: Declining water availability is leading rice growers to adopt water-saving irrigation practices like aerobic rice in order to maintain profitability per megalitre of water input. This study aimed to investigate the effect of increasing soil moisture deficit during the rice vegetative period in a temperate Australian environment. The research found that extending soil moisture deficit beyond 15 kPa significantly delayed panicle initiation and reduced yield, but sound water productivity can still be achieved with aerobic rice cultivation in temperate climates.
Article
Environmental Sciences
Daniela R. Carrijo, Gabriel T. LaHue, Sanjai J. Parikh, Rufus L. Chaney, Bruce A. Linquist
Summary: Exposure to arsenic through rice consumption is a growing concern. Alternate Wetting and Drying (AWD) irrigation practices can reduce arsenic accumulation in grain, but may increase cadmium levels. The severity of soil drying during AWD and the timing of AWD implementation are important factors affecting the accumulation of arsenic and cadmium in rice grain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Jingxue Wei, Yalin Lei, Huajun Yao, Jianping Ge, Sanmang Wu, Lingna Liu
Summary: The overall trend of agricultural water efficiency in the Yellow River basin is increasing, with significant differences among provinces and a spatial distribution pattern showing higher efficiency in downstream areas compared to midstream and upstream areas. Technological progress is the main factor influencing agricultural water efficiency, while economic development level and water resource endowment have positive effects on efficiency.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Agronomy
Matthew Champness, Carlos Ballester, John Hornbuckle
Summary: A predictive model was built to assist in forecasting panicle initiation (PI) of aerobic rice based on irrigation timing. The model can be used as a decision support tool to help researchers and growers schedule irrigation to ensure timely PI, thus increasing the likelihood of high-yielding aerobic rice and enhancing water-saving cultivation.
Article
Engineering, Environmental
Zhan Tian, Yidan Fan, Kai Wang, Honglin Zhong, Laixiang Sun, Dongli Fan, Francesco N. Tubiello, Junguo Liu
Summary: Paddy rice cultivation in China is a significant source of agricultural greenhouse gas emissions. Water-saving irrigation technologies have been tested to increase the drainage period during the rice growth cycle to balance food security with environmental impacts. Computer simulations show that compared to traditional flooded rice fields, water-saving irrigation methods can significantly reduce methane emissions with minimal impact on rice yields.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Article
Environmental Sciences
Matthew C. Reid, Maria P. Asta, Lily Falk, Scott C. Maguffin, Vu Hoai Cong Pham, Hoang Anh Le, Rizlan Bernier-Latmani, Phu Le Vo
Summary: This study conducted a survey in the Mekong Delta and found no relationship between rice arsenic concentration and speciation with soil levels, but a strong correlation was observed between rice and groundwater arsenic concentrations. The study hypothesizes that surficial sediments with high concentrations of arsenic may serve as sources of arsenic to downgradient shallow aquifers.
Article
Agronomy
K. Bradley Watkins, Chris G. Henry, Jarrod T. Hardke, Ranjitsinh U. Mane, Ralph Mazzanti, Ron Baker
Summary: This study evaluates the efficiency of irrigation water use and other key rice production inputs in 142 rice fields in Arkansas, finding that on average 37.3% of groundwater is overused, with 60 fields applying irrigation water by over 50%. The study also identifies herbicides, diesel, and labor as highly inefficient inputs. Results indicate that management practices improving irrigation water efficiency also lead to improvements in diesel and labor efficiency, as well as overall field efficiency.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Agronomy
Xueyin Zhao, Mengting Chen, Hua Xie, Wanqi Luo, Guangfei Wei, Shizong Zheng, Conglin Wu, Shahbaz Khan, Yuanlai Cui, Yufeng Luo
Summary: This study investigated the correlation between rice pests and diseases and meteorological conditions in six major rice-growing regions in China. It was found that, in most cases, the use of AWD technology can reduce irrigation water inputs for rice cultivation.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Environmental Sciences
Wei Zhang, Die Wang, Xuemeng Liu
Summary: The green efficiency of water resources in China is increasing with significant room for improvement. There are clear spatial differences in green efficiency, with the Eastern region performing the best. Financial agglomeration has a significant impact on the green efficiency of water resources, but there are regional variations in this impact.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Agronomy
James Brinkhoff, Rasmus Houborg, Brian W. Dunn
Summary: This study developed models using Sentinel-2 and Planet Fusion data to accurately predict the date when rice fields were ponded. Logistic regression models with time-series features achieved low mean absolute errors in predicting the ponding date.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Plant Sciences
Bipin Bihari, Yanendra Kumar Singh, Shweta Shambhavi, Jajati Mandal, Sanjay Kumar, Rakesh Kumar
Summary: The study evaluated the nutrient use efficiencies of rice-wheat crops under different integrated nutrient management treatments, finding that the integrated use of organic manures and inorganic fertilizers over the past 34 years likely improved soil fertility, increased sustainable crop yield, and led to increased nutrient use efficiency.
JOURNAL OF PLANT NUTRITION
(2022)
Article
Agronomy
Mamta, Shweta Shambhavi, Rajkishore Kumar, Rajendra Bairwa, Premlata Meena, Mahesh Chand Meena
Summary: The study found that conservation tillage practices and appropriate crop rotation have significant positive effects on the health and improvement of light-textured Inceptisols by increasing soil organic matter and improving soil physical properties.
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
(2023)
Article
Agronomy
Kirti Kumari, Shweta Shambhavi, Jajati Mandal, Bipin Bihari, Sanjay Kumar, Ankit Kumar, Kamlendra Kumar
Summary: This study investigated the effects of conservation practices on different forms of sulphur, maize yield, and S uptake. It was found that zero tillage and soybean-maize cropping system increased the levels of all forms of sulphur. Continuous adoption of zero tillage also improved the availability index of sulphur and resulted in higher grain yield and S uptake by the maize crop.
CEREAL RESEARCH COMMUNICATIONS
(2023)
Article
Environmental Sciences
Jajati Mandal, Vinay Jain, Sudip Sengupta, Md. Aminur Rahman, Kallol Bhattacharyya, Mohammad Mahmudur Rahman, Debasis Golui, Michael D. Wood, Debapriya Mondal
Summary: Minimizing arsenic intake from food consumption is crucial in arsenic-contaminated regions, especially where rice is the main staple food. This study developed models to predict the maximum allowable concentration of arsenic in soil and bioavailable arsenic in paddy soil. The decision tree (DT) model performed better in predicting the maximum allowable total arsenic in soil, while the logistic regression (LR) model performed better in predicting the concentration of bioavailable arsenic in paddy soil.
JOURNAL OF ENVIRONMENTAL QUALITY
(2023)
Article
Agriculture, Multidisciplinary
S. K. Dutta, Alison Laing, Sanjay Kumar, Shweta Shambhavi, Sunil Kumar, Birender Kumar, D. K. Verma, Arun Kumar, Ravi Gopal Singh, Mahesh Gathala
Summary: Intensive cropping and elevated input use in the Eastern Gangetic Plains have led to resource depletion and reduced profit margins for farmers. Conservation agriculture (CA)-based management practices can improve cropping system performance, but adoption is low. A long-term experiment showed that implementing CA-based management with maize-based systems improved productivity and profitability, providing sustainable options for smallholder farmers.
AGRICULTURAL SYSTEMS
(2023)
Article
Environmental Sciences
Saibal Ghosh, Sonali Banerjee, Jyoti Prajapati, Jajati Mandal, Abhishek Mukherjee, Pradip Bhattacharyya
Summary: The rapid mining activities of mica mines in Giridih district, India have resulted in toxic metal pollution of agricultural soil, posing significant environmental and health risks. The highest concentration of toxic elements was found in the soil samples collected closest to the mica mines. The most promising pollutants were identified as Ni, Cr, Cd, and Pb, which carried higher environmental risks.
Article
Agronomy
Pallavi Bharti, Anupam Das, Suborna Roy Choudhury, Shweta Shambhavi, Pritam Ganguly, Bipin Bihari, Sanjay Kumar, Rajiv Rakshit
Summary: Integration of organic amendments and inorganic fertilizers in agricultural soils over the long term enhances the formation of large macro-aggregates, which positively influence soil organic carbon, microbial biomass carbon, and soil enzyme activities. These findings suggest that large macro-aggregates play a crucial role in regulating soil biological indicators.
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
(2023)
Article
Agronomy
Mahendra Singh, Debjit Chakraborty, Jajati Mandal, dinesh Kumar Chaudhary, Arun Kumar Jha
Summary: A pot experiment was conducted to evaluate the effects of Arbuscular Mycorrhizal (AM) fungi on the mitigation of arsenic (As) in As-contaminated soils with wheat as the test crop. The results showed that inoculation of Glomus mossaea @1 g kg(-1) significantly reduced the available and total arsenic content in the soil. The uptake of arsenic in wheat grain was positively correlated with the arsenic content in the soil. The study highlights that mycorrhizal inoculation can reduce the arsenic content in different parts of wheat in As-contaminated soils.
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
(2023)
Article
Agronomy
Debjit Chakraborty, Mahendra Singh, Nintu Mandal, Tushar Ranjan, Ankesh Kumar Chanchal, Subrat Keshori Behera
Summary: This study examines the interactive effect of mineral P, nano P and phosphate-solubilizing bacteria (PSBs) on different P fractions in soil. The results suggest that the combination of mineral P with nano P as soil application and the application of organic fertilizer with PSB can increase the availability of soluble P in soil.
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
(2023)
Article
Green & Sustainable Science & Technology
Sudip Sengupta, Kallol Bhattacharyya, Jajati Mandal, Parijat Bhattacharya, Asoke Prasun Chattopadhyay
Summary: The study found that adding zinc (Zn) and iron (Fe)-enriched vermicompost can effectively reduce the arsenic (As) content in rice grains, reducing the risk of human exposure to As. The research also found that organic and inorganic additives reduced As accumulation by 58.14% and 31.40% respectively, and Zn and Fe-enriched vermicompost promoted the formation of iron plaque on the roots, reducing the ability of As to enter the rice plant.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Plant Sciences
Amit Phonglosa, Kallol Bhattacharyya, Arnab Pari, Krishnendu Ray, Hirak Banerjee, Sanjay Haldar, Sudip Sengupta, Parijat Bhattacharya, Jajati Mandal
Summary: A pot experiment was conducted to determine the best soil extractant for boron (B) in sunflower plants. Results showed that Mehlich-3 had the highest correlation with plant B. The order of B extraction was Mehlich-3 > Hot-CaCl2 > KH2PO4 > Hot-Water > Tartaric acid > DTPA-Sorbitol.
JOURNAL OF PLANT NUTRITION
(2023)
Article
Soil Science
Naveen Kumar, Shweta Shambhavi, Anupam Das, Shagufta Yasmeen, Pritam Ganguly, Sanjay Kumar, Rajiv Rakshit
Summary: Understanding nitrogen (N) mineralization is crucial for long-term integrated nutrient management (INM) involving organic amendments with inorganic fertilizer application. This study found that the use of organic amendments increased microbial biomass carbon (MBC) and nitrogen (MBN) content by 43% and 41% respectively, leading to enhanced soil enzyme activity and improved soil functioning. These findings highlight the importance of soil biological indicators in optimizing INM practice.
SOIL USE AND MANAGEMENT
(2023)
Article
Plant Sciences
Rehan Reza, Pritam Ganguly, Swaraj Kumar Dutta, Anupam Das, Shweta Shambhavi, Rajiv Rakshit
Summary: Nutrient management and chemical weed control are crucial for crop production. This study investigated the effects of nitrogen fertilizer application and penoxsulam on the biochemical properties of rice plants and soil under sub-tropical conditions. The results showed that the interaction between nitrogen and penoxsulam influenced the levels of proline, chlorophyll pigments, phenolic content, and soil enzymatic activities in rice. Nitrogen application had a positive effect on plant and soil properties, while penoxsulam had a negative effect on chlorophyll pigments and soil enzymatic activities.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
