Search claims · PlantClaims

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Postponing nitrogen fertilization improved nitrogen-use efficiency.

Taxon: late ricet0
Treatment: postponing nitrogen fertilizatione0
Outcome: nitrogen-use efficiencye0
Direction: improvee0

Not reportedComparator

Verbatim

e0
“postponing nitrogen fertilization could appropriately improve the nitrogen-use efficiency”
✓ located verbatim in the source · abstract, characters 676–765

t0
“late rice”
✓ located after whitespace/quote normalisation · title, characters 55–64

Title

Effects of Nitrogen Management on Yield and Quality of Late Rice and Nitrogen-use Efficiency

Xiangming Zhang T'u Jang T'ung Pao 2008

Other claims from this paper (13)

Intervention effect Postponed nitrogen fertilization maintained suitable NH4+-N concentration.
Intervention effect Postponed fertilization promoted late rice growth, yield, dry matter and nitrogen accumulation.
Observation Rice yield was maximal with 53.8% of nitrogen as basal fertilizer.
Association Milling quality improved as the panicle fertilizer ratio increased.
Association Appearance quality worsened as the panicle fertilizer ratio increased.
Association Cooking quality worsened as the panicle fertilizer ratio increased.
Observation At 40.3% basal nitrogen, late rice nitrogen uptake was maximal.
Observation At 40.3% basal nitrogen, nitrogen-use efficiency was maximal.
Association Soil nitrogen dependency had a parabolic relationship with basal fertilizer ratio.
Observation Soil nitrogen dependency was lowest at a 40.0% basal fertilizer ratio.
Association Nitrogen harvest index increased as basal fertilizer application decreased.
Association Nitrogen requirement per 100 kg grain increased as basal fertilizer application decreased.
Recommendation The authors recommend 40%-50% basal, 20%-30% tiller and 20%-30% panicle fertilizer.

Observationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

The rainfall event ultimately reduced plant rainfall use efficiency and nitrogen use efficiency.

Taxon: plante0
Outcome: plant rainfall use efficiency and nitrogen use efficiencye0
Direction: reducinge0

Verbatim

e0
“ultimately reducing plant rainfall use efficiency and nitrogen use efficiency”
✓ located verbatim in the source · abstract, characters 1150–1227

t0
“Extreme rainfall events”
✓ located verbatim in the source · title, characters 0–23

Title

Extreme rainfall events can alter inter-annual biomass responses to water and N enrichment

D. L. Kong; X. T. Lü; L. L. Jiang; et al. Biogeosciences 2013. doi:10.5194/bg-10-8129-2013

Other claims from this paper (4)

Intervention effect Interannual precipitation variation significantly affected plant biomass responses to water addition.
Intervention effect Extreme rainfall variation suppressed plant responses to nitrogen addition.
Intervention effect Extreme rainfall variation reduced the interaction effects of water and nitrogen addition.
Observation Extreme rainfall negatively affected soil nitrogen and water availability.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Xichang had higher wheat SPAD and nitrogen use efficiency.

Taxon: wheatTriticum aestivumt0
Outcome: SPAD and nitrogen use efficiencye0
Direction: highere0
Setting: Xichange0

Verbatim

t0
“wheat”
✓ located verbatim in the source · title, characters 105–110

e0
“Xichang had higher SPAD and nitrogen use efficiency”
✓ located verbatim in the source · abstract, characters 104–155

Title

[Effect of nitrogen management modes on grain yield, nitrogen use efficiency and light use efficiency of wheat].

Xiao Li Wu; Chao Su Li; Yong Lu Tang; et al. PubMed 2017. doi:10.13287/j.1001-9332.201706.008

Other claims from this paper (10)

Observation Guanghan had the highest wheat SPAD, CAP, PAR interception efficiency and grain yield among sites.
Observation Xichang had lower wheat CAP and PAR use efficiency.
Observation Chongqing and Renshou had the lowest wheat SPAD, light use efficiency, nitrogen use efficiency and grain yield.
Association Wheat biomass was significantly positively associated with grain yield, CPA and SPAD.
Association Wheat biomass was significantly positively associated with PAR interception efficiency.
Intervention effect Increasing nitrogen fertilizer promoted wheat yield at all sites.
Intervention effect Postponing nitrogen fertilizer could optimize wheat grain yield components.
Intervention effect Postponing nitrogen fertilizer could improve wheat nitrogen and light use efficiency.
Observation Nitrogen management effects depended on year and site.
Recommendation The authors recommend site-specific target nitrogen management for wheat.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Nitrogen absorption efficiency was identified as the main factor affecting rice nitrogen use efficiency.

Taxon: riceOryza sativae0
Outcome: N-use efficiencye0
Qualifier: N-absorption efficiencye0

Verbatim

e0
“This indicated that the N-absorption efficiency was the main factor affecting the N-use efficiency of rice.”
✓ located verbatim in the source · abstract, characters 395–502

Title

Mechanism of Nitrogen Use Efficiency Difference in Different Genotypic Rices

Chen Jianqiang He'nan nongye kexue 2009

Other claims from this paper (1)

Observation High-NUE rice genotypes had much higher nitrogen absorption efficiency than low-NUE genotypes.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Nitrogen fertilization significantly decreased spinach nitrogen use efficiency.

Taxon: SpinachSpinacia oleraceat0
Treatment: Nitrogen fertilizatione0
Outcome: nitrogen use efficiencye0
Direction: decreasede0

Not reportedComparator

Verbatim

e0
“Nitrogen fertilization significantly decreased nitrogen use efficiency.”
✓ located verbatim in the source · abstract, characters 807–878

t0
“Spinach”
✓ located verbatim in the source · title, characters 0–7

Title

Spinach-irrigating and fertilizing for optimum quality, quantity, and economy

Jinxiu Zhang; Yubo Yue; Zhimin Sha; et al. Acta Agriculturae Scandinavica Section B - Soil & Plant Science 2014. doi:10.1080/09064710.2014.936489

Other claims from this paper (7)

Intervention effect Spinach yield was highest at 16.5% soil water content with 170 kg ha−1 nitrogen fertilizer.
Intervention effect Spinach yield was lowest at 12.5% soil water content with no nitrogen fertilizer.
Association Spinach nitrate content depended strongly on irrigation and nitrogen fertilization levels.
Association Spinach oxalate content depended strongly on irrigation and nitrogen fertilization levels.
Intervention effect Increasing nitrogen fertilizer use improved spinach water use efficiency.
Intervention effect Increasing nitrogen fertilizer use improved profit from spinach production.
Recommendation The authors recommend 85 kg ha−1 nitrogen fertilizer and 16.5% soil water content for field spinach to optimize quality and earnings.

Observationobservedoriginal resultmeasured

Claim · model-written summary

CO2 enrichment increased water use efficiency and nitrogen use efficiency.

Taxon: spring wheatTriticum aestivumt0
Treatment: CO2 enrichmente0
Outcome: water use efficiency (WUE) and nitrogen use efficiency (NUE)e0
Direction: increasede0

Verbatim

e0
“CO2 enrichment increased both the water use efficiency (WUE) and nitrogen use efficiency (NUE)”
✓ located verbatim in the source · abstract, characters 1443–1537

t0
“Spring Wheat”
✓ located verbatim in the source · title, characters 64–76

Title

CO₂Enrichment on Biomass Accumulation and Nitrogen Nutrition of Spring Wheat Under Different Soil Nitrogen and Water Status

Fusheng Li; Shaozhong Kang; Jianhua Zhang Journal of Plant Nutrition 2003. doi:10.1081/pln-120018564

Other claims from this paper (11)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Nitrogen use efficiency exceeded phosphorus use efficiency.

Taxon: sesameSesamum indicumt0
Outcome: Nitrogen Use efficiencye0
Direction: highere0
Comparator: phosphorouse0

Verbatim

e0
“Nitrogen Use efficiency was higher compared to phosphorous”
✓ located verbatim in the source · abstract, characters 1425–1483

t0
“sesame”
✓ located verbatim in the source · title, characters 30–36

Title

Two years of a field study on sesame growth and yield, nutrient uptake by PGP bacteria application and capsule type

Seyyed Fazel Fazeli Kakhki; Mehrnoush Eskandari Torbaghan; Jahanfar Daneshian; et al. Journal of Plant Nutrition 2020. doi:10.1080/01904167.2020.1766076

Other claims from this paper (16)

Observation Thousand-seed weight increased in the second year.
Observation Oil content increased in the second year.
Observation Seed yield fell by -12.6 g m2 in the second year.
Association Seed weight and yield showed a negative relationship.
Observation Year affected single-cap and multi-cap node numbers in opposite directions.
Observation Multi-cap seed had higher seed yield.
Observation Multi-cap seed had increased chlorophyll, protein and N.
Observation Multi-cap seed had lower 1000-seed weight and seed weight per plant.
Observation Nitroxin ranked next to the combined biofertilizers in enhancing sesame growth and yield.
Observation The highest seed yield, 4261 k ha−1, occurred in year one with combined biofertilizers and multi-cap seed.
Observation Highest oil content occurred in year two in single-cap sesame.
Association Node number and capsule number showed the strongest correlations with other parameters.
Association Seed yield correlated with node number at r = 0.925.
Association Seed yield correlated with leaf dry weight at r = 0.885.
Observation Nitrogen and phosphorus use efficiency were higher in year one, multi-cap seed and the combined treatment.
Intervention effect Integrated bacterial application increased sesame nitrogen and phosphorus uptake.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Nitrogen partial factor productivity, crop nitrogen use efficiency and soil nitrogen use efficiency decreased with greater N fertilizer application.

Treatment: N fertilizer applicatione0
Outcome: nitrogen partial factor productivity, crop nitrogen use efficiency and soil nitrogen use efficiencye0
Direction: decreasede0

Not reportedTaxon

Verbatim

e0
“Except for W1N2 treatment, the irrigation water use efficiency increased as the N application rate rose, while the nitrogen partial factor productivity, crop nitrogen use efficiency and soil nitrogen use efficiency decreased with an increase in N fertilizer application.”
✓ located verbatim in the source · abstract, characters 1327–1597

Title

Potato growth, nitrogen balance, quality, and productivity response to water-nitrogen regulation in a cold and arid environment

Dandan Su; Hengjia Zhang; Anguo Teng; et al. Frontiers in Plant Science 2024. doi:10.3389/fpls.2024.1451350

Other claims from this paper (11)

Intervention effect Greater nitrogen and irrigation increased potato tuber yield and growth traits.
Intervention effect Greater nitrogen and irrigation increased potato stem and leaf area index.
Observation Tuber starch, vitamin C and protein content rose then fell across treatments.
Observation Tuber reducing sugar content consistently decreased.
Association Irrigation water use efficiency increased as nitrogen application rose, except for W1N2.
Intervention effect W1N2 yielded 43.16 t ha-1.
Intervention effect W1N2 gave the highest crop nitrogen use efficiency at 0.95.
Observation W1N2 achieved systematic nitrogen use efficiency of 0.72.
Observation W1N2 maintained moderate soil nitrate and ammonium nitrogen.
Observation W1N2 had the highest integrated evaluation index of 0.978.
Recommendation The authors recommended W1N2 for sustainable potato production in northwest China.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Drought reduced photosynthetic nitrogen use efficiency, nitrogen utilization efficiency and biomass nitrogen use efficiency.

Taxon: sugarcanet0
Treatment: drought stresse0
Outcome: photosynthetic NUE, nitrogen utilization efficiency and biomass NUEe0
Direction: reducede0

Not reportedComparator

Verbatim

e0
“drought stress reduced the photosynthetic rate, growth parameters including plant height, leaf area; partial and total dry weights; and nitrogen use efficiency (NUE) traits including photosynthetic NUE, nitrogen utilization efficiency and biomass NUE”
✓ located verbatim in the source · abstract, characters 292–542

t0
“sugarcane varieties”
✓ located verbatim in the source · title, characters 64–83

Title

Nitrogen use efficiency and drought tolerant ability of various sugarcane varieties under drought stress at early growth stage

Dinh Thai Hoang; Takaragawa Hiroo; Kawamitsu Yoshinobu Plant Production Science 2018. doi:10.1080/1343943x.2018.1540277

Other claims from this paper (7)

Intervention effect Drought reduced photosynthetic rate in sugarcane varieties.
Intervention effect Drought reduced plant height and leaf area in sugarcane varieties.
Intervention effect Drought reduced partial and total dry weights in sugarcane varieties.
Observation Sugarcane varieties differed significantly in growth parameters, dry weights and NUE traits.
Observation Sugarcane varieties differed significantly in drought tolerant index.
Association NUE traits were positively correlated with drought tolerant index.
Recommendation Aboveground and stalk dry-weight drought tolerant indices were proposed for evaluating drought tolerance in sugarcane varieties.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Biochar-loaded nitrogen reduced nitrogen recovery use efficiency.

Taxon: Paddyt0
Treatment: Biochar Loadingt0
Outcome: nitrogen recovery use efficiencye0
Direction: reducede0

Not reportedComparator

Verbatim

e0
“reduced nitrogen recovery use efficiency”
✓ located verbatim in the source · abstract, characters 634–674

t0
“Biochar Loading on Paddy Growth”
✓ located verbatim in the source · title, characters 34–65

Title

[Effects of Returning Nitrogen by Biochar Loading on Paddy Growth, Root Morphology, and Nitrogen Use Efficiency].

Ying-Liang Yu; Yue-Man Wang; Peng-Fu Hou; et al. PubMed 2018. doi:10.13227/j.hjkx.201804034

Other claims from this paper (10)

Intervention effect Biochar-loaded nitrogen decreased aboveground paddy biomass by 16% versus nitrogen solution.
Intervention effect Biochar-loaded nitrogen decreased aboveground paddy nitrogen uptake by 14% versus nitrogen solution.
Intervention effect Biochar-loaded nitrogen increased paddy root-shoot biomass ratios by 25%-27%.
Intervention effect The two nitrogen application methods affected paddy adventitious root length and volume.
Association Paddy underground biomass correlated positively with soil ammonium content.
Association Paddy underground nitrogen uptake correlated positively with soil ammonium content.
Association Aboveground paddy nitrogen uptake correlated negatively with root tips.
Intervention effect Plant uptake nitrogen use efficiency did not differ significantly between chemical and biochar-loaded nitrogen.
Intervention effect Biochar promoted soil mineral nitrogen content for plant uptake.
Recommendation The authors recommend biochar as a carrier to return nitrogen from waterbodies to fields.

“nitrogen use efficiency”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics