Abstract
Abstract Paddy fields comprise the single largest land use in Korea, occupying nearly 60% of arable land, consuming about 56% of the nation's water supply, and discharging a significant amount of agricultural non‐point source (NPS) pollution to public waters. Rural water resources conservation, the improvement of irrigation water productivity (IWP) and the reduction of NPS pollution from paddy fields are important issues in Korea. To quantify the issue, a field‐size rice‐plot study was conducted for 3 years comparing the treatment of a system of rice intensification (SRI) irrigation management and a conventional practice (CT). The SRI reduced the irrigation requirement at field level by 50% compared to the CT. The IWP of the SRI improved by an average of 94% over that of the CT. The average reductions of the NPS pollutants by SRI was 44.4% (BOD), 38.6% (SS), 35.3% (COD Mn ), 28.3% (COD Cr ), 23.8% (TN) and 36.3% (TN). The SRI treatment was concluded to have contributed to healthy rice plant growth, improvement of IWP and reduction of agricultural NPS pollution from paddy fields, which could significantly conserve rural water resources and improve water quality in Korea. Copyright © 2016 John Wiley & Sons, Ltd.
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Claims 9
Claim · model-written summary
SRI reduced the field-level irrigation requirement of rice by 50% compared with conventional practice.
- Taxon
- rice
Oryza sativat0 - Treatment
- system of rice intensification (SRI) irrigation managemente0
- Outcome
- irrigation requiremente1
- Direction
- reducede1
- Value
- 50%e1
- Comparator
- conventional practice (CT)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of System of Rice Intensification on Water Productivity and NPS Pollution Discharge”
e0“comparing the treatment of a system of rice intensification (SRI) irrigation management and a conventional practice (CT)”
e1“The SRI reduced the irrigation requirement at field level by 50% compared to the CT”
Claim · model-written summary
SRI improved irrigation water productivity of rice by 94% over conventional practice.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of System of Rice Intensification on Water Productivity and NPS Pollution Discharge”
e2“The IWP of the SRI improved by an average of 94% over that of the CT”
Claim · model-written summary
SRI reduced BOD discharge from paddy fields by 44.4%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of System of Rice Intensification on Water Productivity and NPS Pollution Discharge”
e3“The average reductions of the NPS pollutants by SRI was 44.4% (BOD), 38.6% (SS), 35.3% (COD Mn ), 28.3% (COD Cr ), 23.8% (TN) and 36.3% (TN)”
Claim · model-written summary
SRI reduced SS discharge from paddy fields by 38.6%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of System of Rice Intensification on Water Productivity and NPS Pollution Discharge”
e3“The average reductions of the NPS pollutants by SRI was 44.4% (BOD), 38.6% (SS), 35.3% (COD Mn ), 28.3% (COD Cr ), 23.8% (TN) and 36.3% (TN)”
Claim · model-written summary
SRI reduced COD Mn discharge from paddy fields by 35.3%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of System of Rice Intensification on Water Productivity and NPS Pollution Discharge”
e3“The average reductions of the NPS pollutants by SRI was 44.4% (BOD), 38.6% (SS), 35.3% (COD Mn ), 28.3% (COD Cr ), 23.8% (TN) and 36.3% (TN)”
Claim · model-written summary
SRI reduced COD Cr discharge from paddy fields by 28.3%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of System of Rice Intensification on Water Productivity and NPS Pollution Discharge”
e3“The average reductions of the NPS pollutants by SRI was 44.4% (BOD), 38.6% (SS), 35.3% (COD Mn ), 28.3% (COD Cr ), 23.8% (TN) and 36.3% (TN)”
Claim · model-written summary
SRI reduced TN discharge from paddy fields by 23.8%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of System of Rice Intensification on Water Productivity and NPS Pollution Discharge”
e3“The average reductions of the NPS pollutants by SRI was 44.4% (BOD), 38.6% (SS), 35.3% (COD Mn ), 28.3% (COD Cr ), 23.8% (TN) and 36.3% (TN)”
Claim · model-written summary
SRI reduced a second TN-labelled discharge parameter from paddy fields by 36.3%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of System of Rice Intensification on Water Productivity and NPS Pollution Discharge”
e3“The average reductions of the NPS pollutants by SRI was 44.4% (BOD), 38.6% (SS), 35.3% (COD Mn ), 28.3% (COD Cr ), 23.8% (TN) and 36.3% (TN)”
Claim · model-written summary
SRI treatment is concluded to have contributed to healthy rice plant growth.
- Taxon
- riceOryza sativat0
- Treatment
- SRI treatmente4
- Outcome
- healthy rice plant growthe4
- Direction
- increaseinferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of System of Rice Intensification on Water Productivity and NPS Pollution Discharge”
e4“The SRI treatment was concluded to have contributed to healthy rice plant growth”
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See all 380 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.