Search claims · PlantClaims

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Rice grain yield did not decrease under lower chemical nitrogen treatments relative to conventional nitrogen.

Taxon: riceOryza sativae0
Treatment: lowered chemical nitrogen with and without manuree0
Outcome: rice grain yieldse0
Direction: did not decreasee0
Comparator: conven-tional chemical nitrogene0

Verbatim

e0
“Compared with the conven-tional chemical nitrogen, rice grain yields in all treatments with lowered chemical nitrogen with and without manure did not decrease”
✓ located verbatim in the source · abstract, characters 1338–1496

Title

Rice Yield, Nitrogen Use Efficiency(NUE) and Nitrogen Leaching Losses as Affected by Long-term Combined Applications of Manure and Chemical Fertilizers in Yellow River Irrigated Region of Ningxia, China

Liu Ru-lian Nongye huanjing kexue xuebao 2015

Other claims from this paper (10)

Intervention effect Nitrogen use efficiency was 5.2 percentage points higher under a lower nitrogen treatment.
Intervention effect Nitrogen use efficiency was 1.9 percentage points higher under a lower nitrogen treatment.
Intervention effect Reduced chemical nitrogen combined with manure significantly decreased surface water nitrogen concentration and leaching losses at multiple depths.
Intervention effect At 20 cm, total nitrogen leaching losses were 9.99% lower than conventional chemical nitrogen.
Intervention effect At 20 cm, total nitrogen leaching losses were 16% lower than conventional chemical nitrogen.
Intervention effect At 100 cm, total nitrogen leaching losses were 17.9% lower than conventional nitrogen.
Intervention effect At 100 cm, total nitrogen leaching losses were 9.3% lower than conventional nitrogen.
Intervention effect Combined manure and chemical fertilizer reduced apparent nitrogen losses by 12.1% at the same nitrogen level relative to conventional nitrogen.
Intervention effect Combined manure and chemical fertilizer reduced apparent nitrogen losses by 12.5% relative to reduced chemical nitrogen alone.
Recommendation The authors recommend 195 kg chemical nitrogen with 45 kg manure nitrogen to maintain rice yield while reducing pollution.

Intervention effectauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

For aged 21- and 28-day old seedlings, delaying urea supergranule application could not offset the yield decrease caused by old seedlings.

Taxon: riceOryza sativae1
Treatment: aged seedlings of 21 and 28-day olde1
Outcome: yielde1
Direction: decreasee1

Not reportedComparator

Verbatim

e1
“even though application of urea supergranule at 7 and 14 days after transplanting increased rice yield over 0 and 21 days after transplanting, for the aged seedlings of 21 and 28-day old, the variation of urea supergranule application time could not compensate for the decrease of yield due to old seedlings transplanting”
✓ located verbatim in the source · abstract, characters 1336–1657

Title

Assessing the effect of seedling age and time of urea supergranule application on rice growth, yield and nitrogen use efficiency.

K. Koudjega; Komlan Adigninou Ablede; I. Lawson; et al. West African Journal of Applied Ecology 2019

Other claims from this paper (6)

Intervention effectauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Application above the optimum fertilizer level would decrease rice yield.

Taxon: riceOryza sativae0
Treatment: application amount was more than the optimum fertilizer applying levele0
Outcome: yield of ricee0
Direction: decreasede0
Comparator: optimum fertilizer applying levele0

Verbatim

e0
“the yield of rice would be decreased when the application amount was more than the optimum fertilizer applying level”
✓ located verbatim in the source · abstract, characters 741–857

Title

Study on Fertilization Model of Nitrogen,Phosphorus and Potassium for High Yield of Rice

Pei Geng Anhui nongye kexue 2008

Other claims from this paper (10)

Observationobservedoriginal resultmeasured

Claim · model-written summary

H1 showed a quicker decrease in the partitioning coefficient for blade over time.

Taxon: hybrid riceOryza sativat0
Material: H1e7
Organ / stage: bladee7
Outcome: partitioning coefficient for bladee7
Direction: quicker decreasee7

Verbatim

t0
“yield advantage in hybrid rice”
✓ located verbatim in the source · title, characters 68–98

e7
“for H1, there was quicker increase in the partitioning coefficient for internode and quicker decrease in the partitioning coefficient for blade”
✓ located verbatim in the source · abstract, characters 1540–1683

Title

Are architectural traits at florewing stage relevant to account for yield advantage in hybrid rice

Tanguy Lafarge; Crisanta Sunio Bueno; Estela Magbujos Pasuquin Agritrop (Cirad) 2006

Other claims from this paper (18)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

The three water-saving regimes significantly decreased grain yield.

Taxon: Summer RiceOryza sativat0
Treatment: all three regimese0
Outcome: grain yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“But all three regimes significantly decrease grain yield.”
✓ located verbatim in the source · abstract, characters 1720–1777

t0
“Summer Rice”
✓ located verbatim in the source · title, characters 31–42

Title

Mitigate Grain Arsenic Load of Summer Rice through Water Management

M.D. Bairagya; C.K. Kundu; S. Sarkar International Journal of Current Microbiology and Applied Sciences 2018. doi:10.20546/ijcmas.2018.706.065

Other claims from this paper (6)

Intervention effect I4 produced significantly less grain arsenic than I1, at 0.52 mgkg-1.
Intervention effect I4 produced significantly less straw arsenic than I1, at 3.05 mgkg-1.
Intervention effect I4 used 36.4% less irrigation water than I1.
Intervention effect Yield under I4 did not significantly differ from I1.
Intervention effect I5 reduced grain arsenic by 36.7% with 100 mm less water.
Intervention effect I6 reduced grain arsenic by 26.6% with 380 mm less water.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Reduced biomass led to lower grain yield.

Taxon: riceOryza sativat0
Outcome: grain yielde0
Direction: decreasee0
Qualifier: aboveground biomass reducede0

Verbatim

e0
“The aboveground biomass reduced,leading to the decrease of grain yield”
✓ located verbatim in the source · abstract, characters 1443–1513

t0
“rice”
✓ located verbatim in the source · title, characters 54–58

Title

Effects of soil moisture on root growth of no-tillage rice

Yang Cailin Huazhong Nongye Daxue xuebao 2016

Other claims from this paper (17)

Intervention effect W70 limited root growth at elongation.
Observation Root dry weight decreased significantly under low moisture.
Observation Soil moisture had its greatest effect on root diameter at heading.
Observation Effects on root surface area, volume, and dry weight were small at heading.
Observation W70 roots showed early aging at maturity.
Observation Root length, diameter and surface area decreased significantly.
Observation Root volume and dry weight decreased significantly.
Observation Roots of 0.0-1.5 mm diameter were important for growth regulation.
Observation Roots of 0.0-1.0mm diameter played decisive roles.
Observation Root shoot ratio did not significantly differ across moisture levels and stages.
Observation W70 shoot-to-root ratio was lower than W100 and W85 at elongation and maturity.
Observation W70 shoot-to-root ratio was higher than W85 at heading.
Association Root dry weight was positively correlated with aboveground biomass.
Association Root dry weight was positively correlated with grain yield.
Mechanism Aboveground biomass fell with root inhibition under severe water stress.
Observation Mild water stress did not slow root senescence.
Observation Roots of 0.5-1.0mm diameter were important in moisture regulation of root growth.

Intervention effectobservedreview summarynegativemeasured

Claim · model-written summary

UV-B radiation decreased rice grain yield.

Taxon: riceOryza sativat0
Treatment: UV-B radiationt0
Outcome: grain yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“and resulted in decrease in grain yield”
✓ located verbatim in the source · abstract, characters 565–604

t0
“Differences of UV-B radiation sensitivity of rice”
✓ located verbatim in the source · title, characters 0–49

Title

Differences of UV-B radiation sensitivity of rice

Yuan Li Soil and Environmental Sciences 2012

Other claims from this paper (9)

Intervention effect UV-B radiation induced reactive oxygen species production in rice leaves.
Intervention effect UV-B radiation induced Rubisco enzyme decomposition in rice leaves.
Intervention effect UV-B radiation decreased photosynthetic pigment content in rice leaves.
Intervention effect UV-B radiation inhibited rice leaf photosynthesis.
Observation Rice species differed in response to UV-B radiation.
Mechanism Mutation of the CPD photolyase gene was reported to cause UV-B sensitivity differences.
Mechanism CPD photolyase activity was identified as a key factor in rice UV-B sensitivity.
Method / resource The response index could assess differences in rice response to UV-B radiation.
Mechanism Differences in genes, growth, physiology, reproductive period and environment were attributed as the sources of rice response differences.

Observationobservedoriginal resultnegativeprojected

Claim · model-written summary

Future rice yields decrease without carbon dioxide fertilization.

Taxon: riceOryza sativae0
Outcome: yieldse0
Direction: decreasee0
Qualifier: without the CO 2 fertilization effecte0

Verbatim

e0
“simulated future rice yields decrease without the CO 2 fertilization effect”
✓ located verbatim in the source · abstract, characters 569–644

Title

Potential impacts of climate change and climate variability on China’s rice yield and production

W Xiong; D Conway; E Lin; et al. Climate Research 2009. doi:10.3354/cr00802

Other claims from this paper (7)

Observation With carbon dioxide fertilization, future rice yields increase in some areas and periods.
Observation Rice yield variability increases in both climate scenarios.
Observation The largest rice yield variability increase is under A2.
Observation Single rice cropping may expand northward in China.
Observation Double rice cropping may move to the northern Yangtze River basin.
Observation Potential Chinese rice production is projected to increase.
Observation The Sichuan basin, Yangtze River basin and Huang-huaihai plain are highly sensitive to future climate change without adaptation.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Flooding seven days after heading reduced rice yield more severely than flooding after 14 days because ripening ratio fell.

Taxon: RiceOryza sativat0
Organ / stage: ripening ratioe0
Treatment: 7 days after headinge0
Outcome: yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Although the yield decrease was more severe at 7 days after heading because of the decrease in the ripening ratio”
✓ located verbatim in the source · abstract, characters 1235–1348

t0
“Rice”
✓ located verbatim in the source · title, characters 47–51

Title

Change in Yield and Quality Characteristics of Rice by Flooding during the Ripening Stage

Crop Production & Physiology Division, NICS, RDA, Wanju 55365, Korea; Hyeon-Seok Lee; Woon-Ha Hwang; et al. Korean Journal of Crop Science 2017. doi:10.7740/kjcs.2017.62.2.087

Other claims from this paper (4)

Intervention effect Flooding at 14 days after heading affected head rice ratio more than flooding at seven days, with more chalky kernels.
Intervention effect Flooding for up to four days did not significantly alter maximum quantum yield before versus after treatment.
Intervention effect Flooding induced stem elongation in japonica rice.
Mechanism The authors expected flooding-induced stem elongation to reduce assimilate supply to spikelets.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Number of grains panicle-1 and rice yield increased with delay in sowing time up to 30th December, whereas there was a decrease in duration and tillers m-2

Taxon: riceOryza sativat0
Outcome: rice yielde0
Direction: increasede0

Verbatim

t0
“rice (Oryza sativa L.)”
✓ located verbatim in the source · title, characters 48–70

e0
“Number of grains panicle-1 and rice yield increased with delay in sowing time up to 30th December, whereas there was a decrease in duration and tillers m-2”
✓ located verbatim in the source · abstract, characters 948–1103

Title

Effect of heat stress on yield and economics of rice (Oryza sativa L.) cultivars under different sowing dates

S.MOHAPATRA; S.K.TRIPATHY; A.K.MOHANTY; et al. Journal of Agrometeorology 2021. doi:10.54386/jam.v23i1.86

Other claims from this paper (16)

“yield decrease”

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