Energy use efficiency and cost-benefits analysis of rice cultivation: A study on conventional and alternative methods in Myanmar

Htwe, Than; Sinutok, Sutinee; Chotikarn, Ponlachart; Amin, Nowshad; Techato, Kuaanan; Hossain, Tareq

doi:10.1016/j.energy.2020.119104

Cited by 23 publications

(14 citation statements)

References 54 publications

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“…In agreement with our results, Htwe et al. (2021) reported that the mean SE for rice production in Myanmar was 3.31 GJ ton −1 . The results obtained in the groundwater source system were generally within the range of the findings reported by Truong et al.…”

Section: Resultssupporting

confidence: 93%

“…SE was raised with the increase of management intensity, which was significantly influenced by crop yield productivity. In agreement with our results, Htwe et al (2021) reported that the mean SE for rice production in Myanmar was 3.31 GJ ton −1 . The results obtained in the groundwater source system were generally within the range of the findings reported by Truong et al (2017) in Vietnam (4.41-6.67 GJ ton −1 ).…”

Section: Energy Indicessupporting

confidence: 93%

“…This increase could be due to the higher human labor usage for transplanting in the traditional cultivation system and also, for irrigation, which was in agreement with the results reported by Ibarrola-Rivas et al (2016). Total human labor energy consumption for rice in Myanmar was higher (3.81 GJ ha −1 ), while it was lower in India (0.661 GJ ha −1 ), when compared to the value obtained in the present work (Htwe et al, 2021;Kaur et al, 2020).…”

Section: Energy Budgetsupporting

confidence: 92%

“…They found that the mechanical transplanting method had a higher energy output in comparison to the traditional method. The average total output energy obtained in this study (206.8 GJ ha −1 ) was higher than that reported by Htwe et al (2021) in Myanmar (160.0-173.0 GJ ha −1 ) and lower than the value found by Kaur et al (2020) in India (224.9 GJ ha −1 ). This might be due to better management practices and lower production potential.…”

Section: Energy Budgetcontrasting

confidence: 83%

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Effects of Water Source and Technology on Energy Use and Environmental Impacts of Rice Production in Northern Iran

Jamali

Bakhshandeh

Emadi

2022

Water Resources Research

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To assess the sustainability of rice production systems, it is essential to quantify its impact on the environment and energy flow. To analyze the energy flow and greenhouse gas emissions, a total of 200 paddy fields were selected based on the water source utilized for irrigation (river as the surface water source and well as the underground water source), transplanting methods (traditional and mechanical) and grain yield (low‐ and high‐yielding rice cultivars) based on a factorial experimental design (2 × 2 × 2 = 8 conditions). Data were collected in 2020 from 200 rice growers in northern Iran, using a face‐to‐face questionnaire survey. Results showed that the highest total energy use efficiency (EUE) (5.26 GJ ha−1) was observed under the surface water source + traditional + low‐yielding rice system. Although the total EUE in surface water source was higher than that in groundwater source (4.98 vs. 2.90). Water consumption by high‐yielding rice cultivars was higher, as compared to the low‐yielding ones. Electricity (35.2%) and nitrogen fertilizer (31.5%) inputs were the highest energy input for the groundwater and surface water sources, respectively. Average shares of the renewable and non‐renewable energies used in agroecosystems were 25.70% and 74.30% respectively, while the shares of the direct and indirect energies were 60.36% and 39.64%, respectively. The calculated global warming potential value in the paddy fields of northern Iran ranged from 878 to 2,666 kg eqCO2 ha−1. Amongst the studied conditions, the surface water source + traditional + high‐yielding rice system had the highest carbon efficiency and carbon sustainability index level. Overall, surface water source conditions were found to be a more environmentally‐friendly approach in northern Iran. These results, thus, demonstrated that there is a huge potential for improving energy efficiency in the studied conditions, especially for high‐yielding rice cultivars irrigated by surface water sources. These findings could help decision‐makers to better understand the linkage between various conditions, which is a prerequisite to any planning effort for future management strategies at national and international levels.

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Section: Resultssupporting

confidence: 93%

Section: Energy Indicessupporting

confidence: 93%

Section: Energy Budgetsupporting

confidence: 92%

Section: Energy Budgetcontrasting

confidence: 83%

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Effects of Water Source and Technology on Energy Use and Environmental Impacts of Rice Production in Northern Iran

Jamali

Bakhshandeh

Emadi

2022

Water Resources Research

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“…This technology is characterized by its alternation of periods of soil submergence with periods of nonsubmergence during the growing season. It has been reported that compared with traditional submerged irrigation, reasonable AWD could reduce the irrigation water supply by 25∼50% by reducing the irrigation frequency, thereby improving the water use efficiency by more than 20% (Djaman et al., 2018; Htwe et al., 2021; Liu et al., 2013; Pascual & Wang, 2016). Furthermore, AWD could improve the utilization rate of nitrogen and phosphorus fertilizers by improving soil biota and promoting root growth (Song et al., 2019; Xu et al., 2020).…”

Section: Introductionmentioning

confidence: 99%

Alternate wetting and moderate soil drying could increase grain yields in both main and ratoon rice crops

Zhang

Liu

et al. 2022

Crop Science

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Alternate wetting and drying irrigation is a widely used irrigation method for water‐savings and high‐yielding in rice (Oryza sativa L.) production; however, its effect on grain yield (GY) in the main and ratoon crops is unclear. With two rice cultivars as materials, the effects on GY in the main and ratoon crop of three irrigation regimes, that is, conventional flooding irrigation (CI), alternate wetting and moderate soil drying irrigation (WMD), and alternate wetting and severe soil drying irrigation (WSD), during grain filling of the main crop were investigated. Compared with CI, WMD increased GY by 6.0∼6.5% in the main crop by increasing the 1,000‐grain weight and filled grain rate, whereas the ratoon crop GY increased by 13.3∼14.6% via increased panicle number. The WSD had no significant effects on the main crop GY, but significantly decreased ratoon crop GY by decreasing panicle number. A higher leaf photosynthetic rate, leaf area index, root oxidation activity, dry matter accumulation and nonstructural carbohydrate (NSC) translocation under WMD primarily drove the increased 1,000‐grain weight and filled grain rate in the main crop. Under WMD, higher soluble sugar contents catalysed by high amylase activity and higher zeatin + zeatin riboside in stems of the main crop promoted the growth of regenerated buds and increased the ratoon crop panicle number. In conclusion, WMD during grain filling of the main crop improved the growth and development of the main crop and promote the germination of regenerated buds, thereby increasing the GY of both main and ratoon crops.

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Integrating Data Envelopment Analysis and Machine Learning Approaches for Energy Optimization, Decreased Carbon Footprints, and Wheat Yield Prediction Across North-Western India

Kaur,

Rajni,

Sivia

2024

J Soil Sci Plant Nutr

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Energy use efficiency and cost-benefits analysis of rice cultivation: A study on conventional and alternative methods in Myanmar

Cited by 23 publications

References 54 publications

Effects of Water Source and Technology on Energy Use and Environmental Impacts of Rice Production in Northern Iran

Effects of Water Source and Technology on Energy Use and Environmental Impacts of Rice Production in Northern Iran

Alternate wetting and moderate soil drying could increase grain yields in both main and ratoon rice crops

Integrating Data Envelopment Analysis and Machine Learning Approaches for Energy Optimization, Decreased Carbon Footprints, and Wheat Yield Prediction Across North-Western India

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