A review on production of rice in water deficient regions

Kumar, Prafull; Saxena, Narendra Nath

doi:10.5958/2249-7137.2021.02577.5

Cited by 2 publications

(2 citation statements)

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“…The total water footprint of rice is greater than 5,000 m 3 /ha, with more than half of the irrigation water requirements distributed to rice crops in Thailand (Gheewala et al, 2014). Climate change acceleration has caused widespread water shortage problems in Thailand, especially for irrigated rice production (Kumar and Saxena, 2021). In addition, the rise in air temperature can cause severe yield loss, which offsets the effect of increased photosynthetic activity, while increased temperature, severe pest infestation and weed flora changes are expected (Chandrasekaran et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Effects of alternate wetting and drying water management and rice straw incorporation for sustainable rice production under dry season conditions in central Thailand

2023

ANRES

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Importance of the work: Saving water and preventing small particulate matter emissions generated from the open burning of rice straw are essential for sustainable rice production in Thailand. Objectives: To investigate the effects of alternate wetting and drying (AWD) and rice straw and cattle manure incorporation in the dry season. Materials and Methods: Pathum Thani 1 rice seedlings were transplanted to the paddy in January and harvested in April 2022. Plant growth parameters and grain yield data were collected from four treatments with four replications. The redox potential (Eh) values of paddy water were measured, and costs were recorded. Results: AWD water-saving technology with extra rice straw and cattle manure incorporation increased the grain yield by 64%. In contrast, even if the chemical fertilizer and rice straw rates were halved, the grain yield increased by 51% compared to continuously flooded (CF) paddy without rice straw and cattle manure. If chemical fertilizers were replaced with organic fertilizer, the grain yield could be maintained at the same level as for CF paddy. However, plant height, soil plant analysis development value and tiller number were significantly lower than those of CF. Due to the extra rice straw and cattle manure, the cost of the AWD treatment was higher; however, the higher grain yields offset this in determining the cost-benefit ratios. Main finding: The integrated effects of rice straw and AWD reduced chemical fertilizers usage. Fewer chemical fertilizers needed to be applied by incorporating rice straw and manure under AWD as ways to achieve sustainable rice production in the dry season in central Thailand.

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Section: Introductionmentioning

confidence: 99%

Effects of alternate wetting and drying water management and rice straw incorporation for sustainable rice production under dry season conditions in central Thailand

2023

ANRES

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“…One promising alternative is treated wastewater, which is abundant and has the potential to fulfill the water requirements of various industries. Recycled water involves the process of reclaiming water from different sources, treating it, and reusing it for purposes such as irrigation and groundwater replenishment [5]. Despite its wide range of applications, the use of recycled water is somewhat limited due to residual chemicals, a faint yellowish color, and odor that may still be present in the treated water.…”

Section: Introductionmentioning

confidence: 99%

Exploring the Potential of Green Microalgae-Based Phycoremediation Treated Wastewater for Sustainable Concrete Production

Lam,

Sreekeshava,

Bhargavi

et al. 2024

Advances in Civil Engineering

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Wastewater pollution from domestic, industrial, and agricultural sources threatens the environment and human health. Traditional wastewater treatment methods are energy intensive, generate significant sludge, and may not remove all contaminants. This study explores the use of microalgae, Chlorella sorokinianana, to treat wastewater and evaluates its impact on concrete properties. The research aims to optimize microalgae growth conditions, set up nutrient-rich growth chambers, develop biomass separation methods, and assess the effects of microalgae-treated wastewater on concrete. Scanning electron microscopy (SEM) was used to analyze concrete structures produced with microalgae-treated wastewater, freshwater, and sewage treatment plant (STP) water. Concrete from microalgae-treated wastewater exhibited euhedral crystals with pronounced gaps, while freshwater concrete had denser subhedral to anhedral crystals. STP water concrete consistently had lower strength values, possibly due to impurities affecting cement hydration. Microalgae-treated water concrete showed intermediate strength levels, suggesting organic or biological factors may influence hydration, but it still gained strength with time. This study underscores the potential of microalgae-treated wastewater for sustainable concrete production, highlighting the importance of further research to optimize conditions and promote environmentally friendly construction practices.

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A review on production of rice in water deficient regions

Cited by 2 publications

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Effects of alternate wetting and drying water management and rice straw incorporation for sustainable rice production under dry season conditions in central Thailand

Effects of alternate wetting and drying water management and rice straw incorporation for sustainable rice production under dry season conditions in central Thailand

Exploring the Potential of Green Microalgae-Based Phycoremediation Treated Wastewater for Sustainable Concrete Production

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