Abstract
Water saving in rice cultivation has assumed paramount importance, especially in the context of climate change. The introduction of sheet-pipe technology in Indonesia heralded as an innovative subsurface irrigation and drainage system, is poised to revolutionize how to manage this vital resource. Our study was designed with two primary objectives: first, to investigate how rice plants respond when water levels are deliberately reduced using the sheet-pipe technology; and second, to comprehensively analyze water productivity and water use efficiency in comparison to conventional flooded rice cultivation systems. We conducted two distinct experiments: one employing sheet-pipe subsurface irrigation (SSI) and the other utilizing conventional flooded irrigation (CFI). In the SSI setup, the water level was maintained at a depth of 5-10 cm below the soil surface 20 days after transplanting to harvesting. With this setting, the soil moisture was maintained at around 85-95 degrees of saturation. On the other hand, the CFI approach involved water flowing directly over the soil surface, with the water level consistently maintained at a mere 2-3 cm above it. Interestingly, while the SSI method did lead to a reduction in yield, it has significant benefits. Our results showed that a reduction in yield was observed for the SSI 15.5-18.6 % lower compared to the conventional method (CFI). However, the SSI is environmentally benefit compared to the conventional method by reducing 37.5-50.5 % in water irrigation, increasing water use efficiency (WUE) up to 70.8 %, and improving 3.2-10.4 % in water productivity. Our findings reveal that optimizing water conservation may have a disadvantageous effect on rice yield, indicating the importance of optimal water level. Future research to find the optimal water level that balances yield production and environment is required, especially to adapt to dry and warming climate change in the future.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
Sheet-pipe subsurface irrigation reduced rice yield by 15.5-18.6% compared with conventional flooded irrigation.
- Taxon
- rice
Oryza sativae0 - Treatment
- SSIe2
- Outcome
- yielde2
- Direction
- lowere2
- Value
- 15.5-18.6 %e2
- Comparator
- conventional method (CFI)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to investigate how rice plants respond when water levels are deliberately reduced using the sheet-pipe technology”
e2“a reduction in yield was observed for the SSI 15.5-18.6 % lower compared to the conventional method (CFI)”
Claim · model-written summary
Sheet-pipe subsurface irrigation reduced water irrigation by 37.5-50.5% compared with the conventional method.
- Taxon
- riceOryza sativae0
- Treatment
- SSIe3
- Outcome
- water irrigatione4
- Direction
- reducinge4
- Value
- 37.5-50.5 %e4
- Comparator
- conventional methode3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to investigate how rice plants respond when water levels are deliberately reduced using the sheet-pipe technology”
e3“the SSI is environmentally benefit compared to the conventional method”
e4“by reducing 37.5-50.5 % in water irrigation”
Claim · model-written summary
Sheet-pipe subsurface irrigation increased water use efficiency by up to 70.8% compared with the conventional method.
- Taxon
- riceOryza sativae0
- Treatment
- SSIe3
- Outcome
- water use efficiency (WUE)e5
- Direction
- increasinge5
- Value
- 70.8 %e5
- Comparator
- conventional methode3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to investigate how rice plants respond when water levels are deliberately reduced using the sheet-pipe technology”
e3“the SSI is environmentally benefit compared to the conventional method”
e5“increasing water use efficiency (WUE) up to 70.8 %”
Claim · model-written summary
Sheet-pipe subsurface irrigation improved water productivity by 3.2-10.4% compared with the conventional method.
- Taxon
- riceOryza sativae0
- Treatment
- SSIe3
- Outcome
- water productivitye6
- Direction
- improvinge6
- Value
- 3.2-10.4 %e6
- Comparator
- conventional methode3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to investigate how rice plants respond when water levels are deliberately reduced using the sheet-pipe technology”
e3“the SSI is environmentally benefit compared to the conventional method”
e6“improving 3.2-10.4 % in water productivity”
The same questions in other papers
irrigation · physiology: water · Oryza sativa (rice)Positive and negative results
349 papers in the same direction as this paper · 25 in the opposite direction · 5 reporting no difference from an alternative
- positive
- positive
- positive
376 papers more in this group
See all 380 papers →irrigation · yield · Oryza sativa (rice)Positive and negative results
264 papers in the same direction as this paper · 906 in the opposite direction
- positive
- positive
- no effect
1,167 papers more in this group
See all 1,171 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.