Abstract
Rice is a typical silicon-accumulating plant. Silicon (Si), deposited as phytoliths during plant growth, has been shown to occlude organic carbon, which may prove to have significant effects on the biogeochemical sequestration of atmospheric CO2. This study evaluated the effects of silicate fertilization on plant Si uptake and carbon bio-sequestration in field trials on China's paddy soils. The results showed (1) Increased Si concentrations in rice straw with increasing application rates of silicate fertilizer; (2) Strong positive correlations between phytolith contents and straw SiO2 contents and between phytolith contents and phytolith-occluded carbon (PhytOC) contents in rice straw; (3) Positive correlations between the phytolith production flux and either the above-ground net primary productivity (ANPP) or the PhytOC production rates; (4) Increased plant PhytOC storage with increasing application rates of silicate fertilizer. The average above-ground PhytOC production rates during China's rice production are estimated at 0.94 × 10(6) tonnes CO2 yr(-1) without silicate fertilizer additions. However, the potential exists to increase PhytOC levels to 1.16-2.17 × 10(6) tonnes CO2 yr(-1) with silicate fertilizer additions. Therefore, providing silicate fertilizer during rice production may serve as an effective tool in improving atmospheric CO2 sequestration in global rice production areas.
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 9
Claim · model-written summary
Rice straw silicon concentration increased with silicate fertilizer rate.
- Taxon
- rice
Oryza sativat0 - Organ / stage
- strawe0
- Treatment
- silicate fertilizere0
- Outcome
- Si concentrationse0
- Direction
- Increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased Si concentrations in rice straw with increasing application rates of silicate fertilizer”
t0“paddy rice (Oryza sativa L.)”
Claim · model-written summary
Rice straw phytolith content correlated positively with straw SiO2 content.
- Taxon
- riceOryza sativat0
- Organ / stage
- strawe0
- Compound
- SiO2e0
- Outcome
- phytolith contentse0
- Direction
- positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strong positive correlations between phytolith contents and straw SiO2 contents”
t0“paddy rice (Oryza sativa L.)”
Claim · model-written summary
Rice straw phytolith content correlated positively with phytolith-occluded carbon content.
- Taxon
- riceOryza sativae0
- Organ / stage
- strawe0
- Compound
- phytolith-occluded carbon (PhytOC)e0
- Outcome
- phytolith contentse0
- Direction
- higherinferrede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“between phytolith contents and phytolith-occluded carbon (PhytOC) contents in rice straw”
Claim · model-written summary
Phytolith production flux correlated positively with above-ground net primary productivity.
- Taxon
- riceOryza sativat0
- Organ / stage
- above-grounde0
- Outcome
- phytolith production fluxe0
- Direction
- Positivee0
- Qualifier
- above-ground net primary productivity (ANPP)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Positive correlations between the phytolith production flux and either the above-ground net primary productivity (ANPP)”
t0“paddy rice (Oryza sativa L.)”
Claim · model-written summary
Phytolith production flux correlated positively with PhytOC production rates.
- Taxon
- riceOryza sativat0
- Compound
- PhytOCe0
- Outcome
- phytolith production fluxe0
- Direction
- Positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Positive correlations between the phytolith production flux and either the above-ground net primary productivity (ANPP) or the PhytOC production rates”
t0“paddy rice (Oryza sativa L.)”
Claim · model-written summary
Plant PhytOC storage increased with silicate fertilizer rate.
- Taxon
- riceOryza sativat0
- Treatment
- silicate fertilizere0
- Outcome
- plant PhytOC storagee0
- Direction
- Increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased plant PhytOC storage with increasing application rates of silicate fertilizer”
t0“paddy rice (Oryza sativa L.)”
Claim · model-written summary
Above-ground PhytOC production during rice production was estimated at 0.94 × 10(6) tonnes CO2 yr(-1) without silicate fertilizer.
- Taxon
- riceOryza sativae0
- Organ / stage
- above-grounde0
- Outcome
- PhytOC production ratese0
- Value
- 0.94 × 10(6) tonnes CO2 yr(-1)e0
- Qualifier
- without silicate fertilizer additionse0
- Setting
- China'se0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average above-ground PhytOC production rates during China's rice production are estimated at 0.94 × 10(6) tonnes CO2 yr(-1) without silicate fertilizer additions.”
Claim · model-written summary
Silicate fertilizer could raise PhytOC production to 1.16-2.17 × 10(6) tonnes CO2 yr(-1).
- Taxon
- riceOryza sativat0
- Treatment
- silicate fertilizer additionse0
- Outcome
- PhytOC levelse0
- Direction
- increasee0
- Value
- 1.16-2.17 × 10(6) tonnes CO2 yr(-1)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the potential exists to increase PhytOC levels to 1.16-2.17 × 10(6) tonnes CO2 yr(-1) with silicate fertilizer additions”
t0“paddy rice (Oryza sativa L.)”
Claim · model-written summary
The authors recommend silicate fertilizer to improve atmospheric CO2 sequestration in rice production.
- Taxon
- riceOryza sativae0
- Treatment
- silicate fertilizere0
- Outcome
- improving atmospheric CO2 sequestratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“providing silicate fertilizer during rice production may serve as an effective tool in improving atmospheric CO2 sequestration in global rice production areas”
The same questions in other papers
silicate(4-) · nutrient: content · Oryza sativa (rice)Positive and negative results
22 papers in the same direction as this paper · 3 in the opposite direction
- positive
- negative
- no effect
22 papers more in this group
See all 26 papers →silicate(4-) · molecular: metabolites · Oryza sativa (rice)Results agree
8 papers in the same direction as this paper
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →fertilization · molecular: metabolites · Oryza sativa (rice)Positive and negative results
198 papers in the same direction as this paper · 20 in the opposite direction
- negative
- no effect
- negative
215 papers more in this group
See all 219 papers →fertilization · nutrient: content · Oryza sativa (rice)Positive and negative results
931 papers in the same direction as this paper · 56 in the opposite direction · 5 reporting no difference from an alternative
- positive
- negative
- no effect
989 papers more in this group
See all 993 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.