Abstract
Abstract Aiming to promote low-cost production of protein-rich forage rice and resource recycling from wastewater treatment plants, a pot experiment was conducted to assess the possibility to substitute mineral fertilizers with composted sewage sludge (CSS) with/without top-dressing with treated municipal wastewater (TWW). Results indicated that a basal application of CSS at 2.6 g N pot −1 replaced conventional mineral fertilization of 1.3 g N pot −1 to produce comparable yields with the same rice protein content, although there might be a risk of increased As concentration in rice grains. Interestingly, CSS application at a reasonable dose of 1.3 g N pot −1 , followed by a topdressing with TWW resulted in 27% higher yield and 25% superior rice protein content relative to the mineral fertilization, with no risk of heavy metal(loid) accumulation in grains and in paddy soils. Here we demonstrated an appealing fertilization practice with zero use of mineral fertilizers in paddy rice cultivation, expectedly contributing towards sustainable rice farming and animal husbandry in Japan.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 7
Claim · model-written summary
2.6 g N pot −1 CSS produced rice yields comparable to conventional mineral fertilization.
- Taxon
- rice
Oryza sativat0 - Treatment
- CSS at 2.6 g N pot −1e0
- Outcome
- yieldse0
- Direction
- comparablee0
- Comparator
- conventional mineral fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a basal application of CSS at 2.6 g N pot −1 replaced conventional mineral fertilization of 1.3 g N pot −1 to produce comparable yields”
t0“rice”
Claim · model-written summary
2.6 g N pot −1 CSS produced the same rice protein content as mineral fertilization.
- Taxon
- riceOryza sativae0
- Treatment
- CSS at 2.6 g N pot −1e0
- Outcome
- rice protein contente0
- Direction
- samee0
- Comparator
- conventional mineral fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a basal application of CSS at 2.6 g N pot −1 replaced conventional mineral fertilization of 1.3 g N pot −1 to produce comparable yields with the same rice protein content”
Claim · model-written summary
CSS might increase As concentration in rice grains.
- Taxon
- riceOryza sativae0
- Treatment
- CSS at 2.6 g N pot −1e1
- Outcome
- As concentration in rice grainse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there might be a risk of increased As concentration in rice grains”
e1“a basal application of CSS at 2.6 g N pot −1”
Claim · model-written summary
1.3 g N pot −1 CSS followed by TWW topdressing increased rice yield 27% relative to mineral fertilization.
- Taxon
- riceOryza sativat0
- Treatment
- CSS application at a reasonable dose of 1.3 g N pot −1 , followed by a topdressing with TWWe0
- Outcome
- yielde0
- Direction
- highere0
- Value
- 27%e0
- Comparator
- the mineral fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CSS application at a reasonable dose of 1.3 g N pot −1 , followed by a topdressing with TWW resulted in 27% higher yield and 25% superior rice protein content relative to the mineral fertilization”
t0“rice”
Claim · model-written summary
1.3 g N pot −1 CSS followed by TWW topdressing raised rice protein content 25% relative to mineral fertilization.
- Taxon
- riceOryza sativat0
- Treatment
- CSS application at a reasonable dose of 1.3 g N pot −1 , followed by a topdressing with TWWe0
- Outcome
- rice protein contente0
- Direction
- superiore0
- Value
- 25%e0
- Comparator
- the mineral fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CSS application at a reasonable dose of 1.3 g N pot −1 , followed by a topdressing with TWW resulted in 27% higher yield and 25% superior rice protein content relative to the mineral fertilization”
t0“rice”
Claim · model-written summary
The CSS and TWW treatment showed no heavy metal(loid) accumulation in grains and paddy soils.
- Taxon
- riceOryza sativat0
- Treatment
- CSS application at a reasonable dose of 1.3 g N pot −1 , followed by a topdressing with TWWe1
- Outcome
- heavy metal(loid) accumulation in grains and in paddy soilse0
- Direction
- no riske0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with no risk of heavy metal(loid) accumulation in grains and in paddy soils”
e1“CSS application at a reasonable dose of 1.3 g N pot −1 , followed by a topdressing with TWW”
t0“rice”
Claim · model-written summary
Authors recommend CSS and TWW as a rice fertilization practice with zero mineral fertilizers.
- Taxon
- riceOryza sativae0
- Outcome
- fertilization practice with zero use of mineral fertilizerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an appealing fertilization practice with zero use of mineral fertilizers in paddy rice cultivation”
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