Search claims · PlantClaims

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher irrigation increased nitrogen use efficiency and assimilatory nitrogen use efficiency.

Taxon: Fraser Firt0
Treatment: Higher irrigation treatmentse0
Outcome: nitrogen use efficiency (NUE) and assimilatory nitrogen use efficiencye0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Higher irrigation treatments increased nitrogen use efficiency (NUE) and assimilatory nitrogen use efficiency”
✓ located verbatim in the source · abstract, characters 670–779

t0
“Fraser Fir”
✓ located verbatim in the source · title, characters 62–72

Title

Growth, Biomass, and Nitrogen Use Efficiency of Containerized Fraser Fir (Abies fraseri) as Related to Irrigation and Nitrogen Fertilization

Pascal Nzokou; Bert M. Cregg HortScience 2010. doi:10.21273/hortsci.45.6.946

Other claims from this paper (11)

Intervention effect Height growth increased by 12% to 35% with increased irrigation.
Intervention effect Stem diameter growth increased by 4% to 32% with increased irrigation.
Association Irrigation was inversely related to foliar nitrogen content.
Intervention effect Irrigation had no effect on foliar phosphorus, potassium, magnesium and manganese.
Intervention effect Irrigation increased foliar calcium.
Observation Approximately 2.0% to 4.5% of applied nitrogen was lost through leaching.
Mechanism High irrigation increased total biomass through greater root and stem biomass.
Mechanism Higher irrigation may raise nitrogen use efficiency through increased carbon assimilation and net primary productivity.
Intervention effect Irrigation had no clear effect on root weight ratio.
Intervention effect The lowest irrigation gave a higher index of nitrogen availability per unit foliage.
Mechanism Under water stress, nutrient supply to organs may buffer reduced assimilation and nitrogen use efficiency.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Optimized water and nitrogen supply improved nitrogen use efficiency, partial nitrogen production efficiency and water use efficiency.

Taxon: CucumberCucumis sativust0
Treatment: optimized water and nitrogen supplye0
Outcome: nitrogen use efficiency,partial nitrogen production efficiency,and the water use efficiencye0
Direction: improvede0

Not reportedComparator

Verbatim

t0
“Greenhouse Winter-spring Cucumber”
✓ located verbatim in the source · title, characters 100–133

e0
“optimized water and nitrogen supply improved nitrogen use efficiency,partial nitrogen production efficiency,and the water use efficiency”
✓ located verbatim in the source · abstract, characters 1542–1678

Title

Effects of Water and Nitrogen Supply on Dry Matter Accumulation,Nutrient Uptake and Distribution in Greenhouse Winter-spring Cucumber

Huijun Wu Acta Agriculturae Boreali-Sinica 2012

Other claims from this paper (17)

Observation Dry matter accumulation and nutrient uptake of cucumber had similar S-curve characteristics.
Observation The fruiting stage was the critical stage for dry matter accumulation and nutrient uptake.
Intervention effect Root dry matter was not significantly affected by the different water and nitrogen application patterns.
Intervention effect Dry matter of leaves, stems and fruits was affected by water and nitrogen application patterns during the fruiting stage.
Intervention effect Optimized water and nitrogen application rates improved dry matter accumulation and its ratio to total dry matter, especially in fruit.
Intervention effect Optimized water and nitrogen application rates decreased the root to shoot ratio.
Observation Cucumber absorbed 396 to 490 kg/ha N to attain a yield of 150 to 200 t/ha.
Observation Cucumber absorbed 93 to 127 kg/ha P.
Observation Cucumber absorbed 516 to 529 kg/ha K.
Observation Nutrient uptake followed the order K, N, P to attain a cucumber yield of 150 to 200 t/ha.
Observation The N:P:K ratio of nutrient uptake was 1:0.21:1.17 under optimized water and nitrogen application rates.
Intervention effect Nitrogen fertilization improved dry matter and nitrogen uptake of cucumber.
Intervention effect Reduced water supply improved dry matter and nitrogen uptake of cucumber.
Intervention effect Compared with conventional supply, optimized water and nitrogen application improved dry matter accumulation, nitrogen uptake and the ratio of nitrogen in fruit.
Intervention effect The ratios of P and K to N were increased by the optimized treatment.
Intervention effect The uptake of P and K was decreased by the optimized treatment.
Intervention effect Optimized water and nitrogen supply decreased luxury uptake of phosphorus and potassium.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Increased nitrogen accumulation enhanced agronomic and recovery nitrogen use efficiency.

Taxon: cottonGossypium hirsutumt0
Outcome: agronomic nitrogen use efficiency and recovery nitrogen use efficiencye0
Direction: enhancede0

Verbatim

e0
“enhanced agronomic nitrogen use efficiency and recovery nitrogen use efficiency”
✓ located verbatim in the source · abstract, characters 826–905

t0
“cotton”
✓ located verbatim in the source · title, characters 16–22

Title

Integrated soil-cotton management system enhances nitrogen use efficiency under different soil fertility levels

Xinyue Zhang; Hongkun Yang; Rizwan Zahoor; et al. Archives of Agronomy and Soil Science 2019. doi:10.1080/03650340.2019.1697874

Other claims from this paper (8)

Intervention effect Integrated management increased soil available nitrogen 9.5–21.2% in middle and later growth stages.
Intervention effect Integrated management improved average nitrogen accumulation rate 30.4–36.2%.
Intervention effect Integrated management improved maximum nitrogen accumulation rate 39.9–45.1%.
Intervention effect Integrated management postponed onset of rapid nitrogen accumulation by 3–6 days.
Intervention effect Integrated management raised final nitrogen accumulation 32.5–38.3%.
Observation Increased nitrogen accumulation improved leaf area index, leaf area duration, and boll number.
Recommendation Authors suggest omitting nitrogen fertilizer on more fertile soil under integrated management.
Observation Integrated management diminished the decline in nitrogen use efficiency.

Associationobservedoriginal resultmixedmeasured

Claim · model-written summary

Nitrogen use efficiency varied by cotton genotype and efficiency measure.

Taxon: cottonGossypium hirsutumt0
Material: genotypese0
Outcome: nitrogen use efficiencye0

Not reportedDirection

Verbatim

e0
“The nitrogen use efficiency varied with the genotypes and type of ef- ficiency calculated”
✓ located verbatim in the source · abstract, characters 785–874

t0
“cotton”
✓ located verbatim in the source · title, characters 27–33

Title

Nitrogen use efficiency by cotton varieties

Araújo, Érica De Oliveira; Camacho, Marcos Antonio; Vincensi, Marion Martins Revistas SARC 2019. doi:10.19084/rca.16275

Other claims from this paper (4)

Intervention effect Nitrogen application had a significant linear effect on cotton shoot dry matter production.
Intervention effect Nitrogen application had a significant linear effect on cotton nitrogen content.
Intervention effect Nitrogen application had a significant linear effect on cotton nitrogen concentration.
Intervention effect Higher nitrogen doses reduced nitrogen recovery by cotton.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Chongqing and Renshou had the lowest wheat SPAD, light use efficiency, nitrogen use efficiency and grain yield.

Taxon: wheatTriticum aestivumt0
Outcome: SPAD, light use efficiency, nitrogen use efficiency and grain yielde0
Direction: loweste0
Setting: Chongqing and Renshoue0

Verbatim

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

e0
“Chongqing and Renshou had the lowest SPAD, light use efficiency, nitrogen use efficiency and grain yield”
✓ located verbatim in the source · abstract, characters 191–295

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 higher wheat SPAD and nitrogen use efficiency.
Observation Xichang had lower wheat CAP and PAR use efficiency.
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.

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

The enhanced nitrogen use efficiency corresponded to improved photosynthetic nitrogen-use efficiency in leaves at a topdressed nitrogen fraction of 30%.

Taxon: malting barleyt0
Organ / stage: leavese1
Treatment: fraction of topdressed nitrogen of 30%e1
Outcome: nitrogen use efficiencye1
Direction: enhancede1

Verbatim

t0
“malting barley”
✓ located verbatim in the source · title, characters 118–132

e1
“The enhanced nitrogen use efficiency was corresponding to the improved photosynthetic nitrogen-use efficiency in the leaves at fraction of topdressed nitrogen of 30%”
✓ located verbatim in the source · abstract, characters 1251–1416

Title

Effects of split nitrogen fertilization on post-anthesis photoassimilates, nitrogen use efficiency and grain yield in malting barley

Jian Cai; Dong Jiang; Fulai Liu; et al. Acta Agriculturae Scandinavica Section B - Soil & Plant Science 2011. doi:10.1080/09064710.2010.497158

Other claims from this paper (7)

Recommendationauthor interpretationreview summarypositivebasis n/a

Claim · model-written summary

Proper agronomic practices can increase nitrogen use efficiency.

Taxon: crope0
Outcome: nitrogen use efficiencye0
Direction: increasee0

Verbatim

e0
“Proper use of these agronomical practices can increase the crop yield and nitrogen use efficiency”
✓ located verbatim in the source · abstract, characters 635–732

Title

Nitrogen Use Efficiency: Farming Practices and Sustainability

Muhammad Haroon; Fahad Idrees; Hamza Armghan Naushahi; et al. Journal of Experimental Agriculture International 2019. doi:10.9734/jeai/2019/v36i330235

Other claims from this paper (3)

Observation Excess nitrogen use is not beneficial to plants.
Observation Nitrogen use efficiency in plants is reported as 30 to 50%.
Recommendation Proper agronomic practices can increase crop yield.

Associationobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

Wheat nitrogen fruiting efficiency was not significantly correlated with nitrogen use efficiency.

Taxon: winter wheatTriticum aestivumt0
Outcome: Nitrogen fruiting efficiencye0
Direction: not significantly correlatede0
Qualifier: nitrogen use efficiencye0
Comparator: nitrogen use efficiencye0

Not reportedOrgan / stage

Verbatim

e0
“Nitrogen fruiting efficiency was positively correlated with nitrogen utilization efficiency, negatively correlated with nitrogen uptake efficiency, but not significantly correlated with nitrogen use efficiency.”
✓ located verbatim in the source · abstract, characters 408–618

t0
“winter wheat”
✓ located verbatim in the source · title, characters 97–109

Title

[Correlation between nitrogen fruiting efficiency and nitrogen utilization and remobilization in winter wheat at different sowing dates].

Yuan Gang Zhu; Jin Peng Chu; Xiu Zhang; et al. PubMed 2019. doi:10.13287/j.1001-9332.201904.005

Other claims from this paper (14)

Intervention effect Grain yield did not differ significantly among wheat sowing dates.
Intervention effect Grain number per unit area did not differ significantly among wheat sowing dates.
Intervention effect Delayed sowing lowered wheat nitrogen accumulation in both shoots and spikes.
Intervention effect Delayed sowing lowered wheat nitrogen uptake efficiency.
Intervention effect Delayed sowing raised wheat nitrogen utilization efficiency.
Intervention effect Delayed sowing raised wheat nitrogen fruiting efficiency.
Association Wheat nitrogen fruiting efficiency was positively correlated with nitrogen utilization efficiency.
Association Wheat nitrogen fruiting efficiency was negatively correlated with nitrogen uptake efficiency.
Intervention effect Wheat nitrogen nutrition index tended toward optimum under delayed sowing.
Association Wheat nitrogen nutrition index changed synchronously with improved nitrogen fruiting efficiency.
Intervention effect Later wheat sowing lowered Pre-anthesis nitrogen remobilization amount.
Intervention effect Later wheat sowing lowered post-anthesis nitrogen accumulation amount.
Intervention effect Later wheat sowing raised pre-anthesis nitrogen remobilization efficiency.
Association Wheat nitrogen fruiting efficiency correlated positively with nitrogen remobilization efficiency.

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.

“nitrogen use efficiency”

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