Abstract
Rice stands as one of the most water-intensive crops in agriculture, demanding a substantial volume of water annually for cultivation in Bangladesh. To address this considerable water requirement, the International Rice Research Institute (IRRI) introduced the alternate wetting and drying (AWD) irrigation method. This approach necessitates consistent manual oversight to maintain the desired water levels in the field. In pursuit of reducing this manual effort, a study was conducted at Bangabandhu Sheikh Mujibur Rahman Agricultural University. The study aimed to develop an automated version of the AWD irrigation system, assess its impact on plant growth and yield-contributing factors, and investigate water use efficiency through using that automated system. The automated AWD system incorporated water level controllers, solenoid valves, and water level detection probes to regulate water levels in the paddy field. The experiment followed a Randomized Complete Block Design (RCBD) with three treatments: T1 (Conventional Irrigation - CI), T2 (AWD), and T3 (Automated Alternate Wetting and Drying - AAWD), each replicated four times. The findings indicated minimal variation in growth and development parameters of the rice plants between the CI and AWD treatments. Likewise, yield components demonstrated no significant differences among the various treatments. Notably, the treatment with automated alternate wetting and drying (AAWD), namely T3, displayed the highest water use efficiency (WUE) at 65.20 kg/ha/cm, while the lowest WUE of 52.56 kg/ha/cm was observed in the conventional irrigation (CI) treatment T1. The results underscore the clear advantage of adopting an automated AWD system, yielding a 20% reduction in irrigation water usage compared to the conventional approach. This transition also minimizes the need for labor-intensive interventions in the paddy fields of Bangladesh, illustrating the potential for more efficient and sustainable rice cultivation practices.
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Claims 6
Claim · model-written summary
Rice growth and development varied minimally between conventional irrigation and AWD.
- Taxon
- rice
Oryza sativat0 - Treatment
- AWDe0
- Outcome
- growth and development parameterse0
- Direction
- minimal variatione0
- Comparator
- CIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice cultivation in Bangladesh”
e0“minimal variation in growth and development parameters of the rice plants between the CI and AWD treatments”
Claim · model-written summary
Yield components showed no significant differences among irrigation treatments.
- Taxon
- riceOryza sativat0
- Treatment
- various treatmentse0
- Outcome
- yield componentse0
- Direction
- no significant differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice cultivation in Bangladesh”
e0“yield components demonstrated no significant differences among the various treatments”
Claim · model-written summary
Automated AWD had the highest water use efficiency, 65.20 kg/ha/cm.
- Taxon
- riceOryza sativat0
- Treatment
- automated alternate wetting and drying (AAWD)e0
- Outcome
- water use efficiency (WUE)e0
- Direction
- higheste0
- Value
- 65.20 kg/ha/cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice cultivation in Bangladesh”
e0“treatment with automated alternate wetting and drying (AAWD), namely T3, displayed the highest water use efficiency (WUE) at 65.20 kg/ha/cm”
Claim · model-written summary
Conventional irrigation had the lowest water use efficiency, 52.56 kg/ha/cm.
- Taxon
- riceOryza sativat0
- Treatment
- conventional irrigation (CI)e0
- Outcome
- WUEe0
- Direction
- loweste0
- Value
- 52.56 kg/ha/cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice cultivation in Bangladesh”
e0“lowest WUE of 52.56 kg/ha/cm was observed in the conventional irrigation (CI) treatment T1”
Claim · model-written summary
Automated AWD reduced irrigation water usage by 20% versus conventional irrigation.
- Taxon
- riceOryza sativat0
- Treatment
- automated AWD systeme0
- Outcome
- irrigation water usagee0
- Direction
- reductione0
- Value
- 20%e0
- Comparator
- conventional approache0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice cultivation in Bangladesh”
e0“automated AWD system, yielding a 20% reduction in irrigation water usage compared to the conventional approach”
Claim · model-written summary
Automated AWD minimizes labor-intensive interventions in Bangladesh paddy fields.
- Taxon
- riceOryza sativat0
- Outcome
- need for labor-intensive interventionse0
- Direction
- minimizese0
- Setting
- paddy fields of Bangladeshe0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice cultivation in Bangladesh”
e0“This transition also minimizes the need for labor-intensive interventions in the paddy fields of Bangladesh”
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