Search claims · PlantClaims

Observationobservedoriginal resultmeasured

Claim · model-written summary

Melastoma was reported unable to fix N.

Taxon: MelastomaMelastomae0
Outcome: could not fix Ne0

Verbatim

e0
“Melastoma could not fix N”
✓ located verbatim in the source · abstract, characters 728–753

Title

POST DEFORESTATION LAND IN BENGKULU SUMATERA : II. Study on Fallow Vegetation

Iin Handayani; Priyono Prawito; Zainal Muktamar University of Bengkulu Scholar Repository (University of Bengkulu) 2002

Other claims from this paper (9)

Observation Melastoma and Wedelia were identified as rapidly mineralizing organic substrates for fallow improvement.
Observation Melastoma and Wedelia had higher N content than Saccharum, Chromolaena and Imperata.
Recommendation Melastoma was proposed as green manure for crops needing P, Mg and K.
Observation Melastoma roots supplied P at about 0.872%.
Observation Saccharum roots supplied P at about 0.880%.
Observation Imperata roots supplied P at about 0.858%.
Observation Chromolaena roots supplied P at about 0.765%.
Observation Melastoma and Saccharum roots had high K and Mg.
Observation Melastoma and Imperata roots had high Ca.

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

In nodulated soybeans, N FIX could be modeled as a linear function of N F.

Taxon: soybeansGlycine maxe0
Outcome: N FIXe0
Comparator: N Fe0

Verbatim

e0
“In nodulated soybeans, N FIX could be modelled as a liner function of N F .”
✓ located verbatim in the source · abstract, characters 1255–1330

Title

A Quantitative Method for Analyzing Nitrogen Assimilation in Soybeans

Jin Kakiuchi; Tohru Kobata Crop Science 2017. doi:10.2135/cropsci2016.05.0373

Other claims from this paper (4)

Observationobservedreview summarybasis n/a

Claim · model-written summary

Sesbania aculeata cover crops fix 90–130 kg N ha⁻¹.

Taxon: Sesbania aculeataSesbania bispinosae0
Outcome: fixe0
Value: 90–130 kg N ha⁻¹e0

Verbatim

e0
“legumes like Sesbania aculeata to fix 90–130 kg N ha⁻¹”
✓ located verbatim in the source · abstract, characters 919–973

Title

Soil Health and Sustainable Practices in Horticultural Systems: A Global Perspective

Pavan Shukla; Amit Kumar Pandey; Ashutosh Singh; et al. Journal of Scientific Research and Reports 2026. doi:10.9734/jsrr/2026/v32i54202

Other claims from this paper (4)

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

At Guinea savannah, legume fix had the highest N uptake, 95.53 kg N per hectare.

Taxon: soybeanGlycine maxt0
Treatment: legume fixe0
Outcome: N uptakee0
Direction: higheste0
Value: 95.53 kg N ha-1e0
Comparator: all treatments except legume fix + cattle manuree0
Setting: Guinea savannahe0

Verbatim

t0
“soybean (Glycine max)”
✓ located verbatim in the source · title, characters 12–33

e0
“At Guinea savannah legume fix gave the highest N uptake value (95.53 kg N ha-1) which was significantly different from all treatments except legume fix + cattle manure.”
✓ located verbatim in the source · abstract, characters 731–899

Title

Response of soybean (Glycine max) to Rhizobia inoculation, mineral nitrogen and inoculation amendment at the two agro ecological zones of northern Nigerian savannah

A, Abdulkadir N; Ewusi-Mensah N; Opuko A; et al. Zenodo (CERN European Organization for Nuclear Research) 2021. doi:10.5281/zenodo.5059687

Other claims from this paper (5)

Intervention effect Legume fix gave the highest grain N uptake, 90.51 kg N per hectare.
Intervention effect At Guinea savannah, 50 kg N per hectare gave the lowest N uptake, 48.64 kg N per hectare.
Intervention effect Legume fix gave the highest P uptake, 9.66 kg P per hectare.
Intervention effect Alosca plus cattle manure gave the highest K uptake, 49.99 kg K per hectare, in Sudan savannah.
Intervention effect Fixed N differed significantly among treatments and control in both soybean fields.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

At Guinea savannah, legume fix gave the highest N uptake, 95.53 kg N ha-1.

Taxon: soybean (Glycine max)Glycine maxt0
Treatment: legume fixe0
Outcome: N uptakee0
Direction: higheste0
Value: 95.53 kg N ha-1e0
Comparator: all treatments except legume fix + cattle manuree0
Setting: Guinea savannahe0

Verbatim

e0
“At Guinea savannah legume fix gave the highest N uptake value (95.53 kg N ha-1) which was significantly different from all treatments except legume fix + cattle manure”
✓ located verbatim in the source · abstract, characters 731–898

t0
“soybean (Glycine max)”
✓ located verbatim in the source · title, characters 12–33

Title

Response of soybean (Glycine max) to Rhizobia inoculation, mineral nitrogen and inoculation amendment at the two agro ecological zones of northern Nigerian savannah

Abdulkadir N A; Ewusi-Mensah N; Opuko A; et al. GSC Advanced Research and Reviews 2021. doi:10.30574/gscarr.2021.7.3.0073

Other claims from this paper (5)

Intervention effect Legume fix gave the highest grain N uptake, 90.51 kg N ha-1.
Intervention effect At Guinea savannah, 50 kg N ha-1 produced the lowest N uptake, 48.64 kg N ha-1.
Intervention effect Legume fix gave the highest P uptake, 9.66 kg P ha-1.
Intervention effect At Sudan savannah, alosca plus cattle manure gave the highest K uptake, 49.99 kg K ha-1.
Intervention effect Fixed N in the two soybean fields differed significantly among treatments and control.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Abundance of proteins involved in secondary metabolism increased in N fix nodules.

Taxon: Glycine maxGlycine maxt0
Organ / stage: N fix nodulese5
Outcome: abundance of proteins involved in secondary metabolisme5
Direction: increasee5

Verbatim

t0
“Glycine max Depending on Nitrogen Regime”
✓ located verbatim in the source · title, characters 53–93

e5
“an increase in abundance of proteins involved in secondary metabolism in N fix nodules”
✓ located verbatim in the source · abstract, characters 1302–1388

Title

Molecular Mechanisms of Tungsten Toxicity Differ for Glycine max Depending on Nitrogen Regime

Julian Preiner; Stefanie Wienkoop; Wolfram Weckwerth; et al. Frontiers in Plant Science 2019. doi:10.3389/fpls.2019.00367

Other claims from this paper (12)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Under water deficit, N-fix soybean had more complex total DEG responses than N-fed plants.

Taxon: soybeanGlycine maxt0
Material: N-fix plantse0
Treatment: WDe0
Outcome: total differentially expressed genes (DEGs)e0
Direction: more complexe0
Comparator: N-fed plantse0

Verbatim

e0
“N-fix plants under WD exhibited more complex responses in terms of total differentially expressed genes (DEGs) compared to N-fed plants”
✓ located verbatim in the source · abstract, characters 716–851

t0
“soybean”
✓ located verbatim in the source · title, characters 142–149

Title

Genes associated with translation and oxidative phosphorylation as components of the translational response in nodulated and water-restricted soybean

Mauro Martínez-Moré; Carla V. Filippi; Guillermo Eastman; et al. BMC Plant Biology 2025. doi:10.1186/s12870-026-09344-6

Other claims from this paper (5)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Shoot N alone explained 0·26 of variation in chickpea P fix.

Taxon: chickpeaCicer arietinume1
Organ / stage: shoote0
Outcome: P fixe0
Value: 0·26e0

Not reportedDirection

Verbatim

e0
“Simple regression coefficients (r2) for P fix were 0·26 with shoot N as the independent variable”
✓ located verbatim in the source · abstract, characters 931–1027

e1
“N of chickpea”
✓ located verbatim in the source · abstract, characters 464–477

Title

Chickpea in wheat-based cropping systems of northern New South Wales. III. Prediction of N 2 fixation and N balance using soil nitrate at sowing and chickpea yield

D. F. Herridge; H. Marcellos; M. B. Peoples; et al. Australian Journal of Agricultural Research 1997. doi:10.1071/a97068

Other claims from this paper (8)

Association Soil nitrate alone explained 0·59 of variation in chickpea P fix.
Association Grain yield alone explained 0·62 of variation in chickpea P fix.
Method / resource Soil nitrate plus shoot N gave a chickpea P fix multiple-regression coefficient of 0·74.
Method / resource Soil nitrate plus grain yield gave a chickpea P fix multiple-regression coefficient of 0·82.
Method / resource For total N2 fixed, the soil nitrate and grain-yield regression coefficient was lower at 0·68.
Method / resource The nitrate and grain-yield equation best predicted chickpea P fix in independent data with r squared 0·83.
Method / resource The functions predicted total chickpea N2 fixed poorly.
Recommendation The authors recommend further development of chickpea N2 fixation functions to improve accuracy and precision and extend them to other species.

Observationobservedoriginal resultmeasured

Claim · model-written summary

The smallest N-15 excess occurred in amino acids from proteins of legumes, which fix nitrogen

Taxon: legumese0
Outcome: excess of N 15e0
Direction: smalleste0

Verbatim

e0
“The smallest excess of N 15 occurred in amino acids from proteins of legumes, which fix nitrogen”
✓ located verbatim in the source · abstract, characters 1404–1500

Title

SIGNIFICANCE OF N¹⁵EXCESS IN NITROGENOUS COMPOUNDS OF BIOLOGICAL ORIGIN

O. H. Gaebler; Harold C. Choitz; Trieste G. Vitti; et al. Canadian Journal of Biochemistry and Physiology 1963. doi:10.1139/o63-124

Other claims from this paper (4)

Observationobservedreview summarypositivebasis n/a

Claim · model-written summary

Leguminous plants with root nodules containing rhizobia can fix more than 100 kg N per hectare per year.

Taxon: leguminous plantse2
Organ / stage: root nodulese2
Interactor: rhizobiae2symbiont
Outcome: fixe2
Value: more than 100 kg N per hectare per annume2

Verbatim

e2
“some leguminous plants, which have root nodules containing rhizobia, can fix more than 100 kg N per hectare per annum”
✓ located verbatim in the source · abstract, characters 712–829

Title

The significance of symbiotic nitrogen fixation in plant production

John E. Beringer; Andrew W. B. Johnston Critical Reviews in Plant Sciences 1984. doi:10.1080/07352688409382181

Other claims from this paper (3)

“fix N”

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