Search claims · PlantClaims

Method / resourceobservedoriginal resultpositivebasis n/a

Claim · model-written summary

FLORSYS is described as the first weed model simulating competition for light, water and nitrogen.

Taxon: cropt0
Outcome: competition for light, water and nitrogene0
Comparator: first weed modele0

Verbatim

e0
“The FLORSYS becomes the first weed model to simulate competition for light, water and nitrogen”
✓ located verbatim in the source · abstract, characters 138–232

t0
“crop/weed interactions”
✓ located verbatim in the source · title, characters 132–154

Title

Adapting FLORSYS for climate change: implementing plant-plant competition for water in a 3D mechanistic model for predicting future crop/weed interactions and their consequences in arable cropping systems

Cournault, Quentin; Moreau, Delphine; Castel, Thierry; et al. Open MIND 2026. doi:10.5281/zenodo.18872809

Mechanismauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Compensatory growth after early waterlogging results from diminished interplant competition for nitrogen, water and light.

Taxon: winter wheatTriticum aestivumt0
Outcome: compensatory growthe4
Qualifier: diminished interplant competition for nitrogen, water and lighte4

Verbatim

t0
“Effects of single and multiple waterloggings on the growth and yield of winter wheat on a clay soil”
✓ located verbatim in the source · title, characters 0–99

e4
“Subsequently, compensatory growth resulted from diminished interplant competition for nitrogen, water and light: a greater proportion of tillers survived and the flag leaves were larger, although ears at harvest were fewer in all treatments waterlogged before emergence”
✓ located verbatim in the source · abstract, characters 871–1140

Title

Effects of single and multiple waterloggings on the growth and yield of winter wheat on a clay soil

Robert K. Belford; Robert Q. Cannell; Robert J. Thomson Journal of the Science of Food and Agriculture 1985. doi:10.1002/jsfa.2740360304

Other claims from this paper (11)

Intervention effect Pre-emergence waterlogging restricted winter wheat plant population to 35 m-2 compared with 338 m-2 under free drainage.
Observation Oxygen concentration in the soil declined most rapidly during waterlogging when the soil was warmer and at shallower depths.
Association A decrease in soil solution nitrate during waterlogging was accompanied by an increase in nitrous oxide evolution.
Intervention effect Waterlogging before emergence gave a greater proportion of surviving tillers.
Intervention effect Waterlogging before emergence left the flag leaves larger.
Intervention effect Waterlogging before emergence gave fewer ears at harvest in all treatments.
Intervention effect After waterlogging during tillering, grain loss was accounted for entirely by fewer ear-bearing tillers.
Intervention effect After waterlogging during stem elongation, yield losses were associated with fewer grains per spikelet.
Intervention effect Single waterlogging depressed grain yield by about 4–12%.
Intervention effect Any two waterloggings depressed grain yield by 20%.
Intervention effect Waterlogging on all three occasions depressed grain yield by 32%.

Mechanismauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

The negative effects of biosolids on broom are suggested to be due to increased competition from other plants for light and water.

Taxon: broome0
Treatment: biosolidse0
Outcome: negative effects of biosolids on broome0
Qualifier: increased competition from other plants for light and watere0

Verbatim

e0
“This suggests that the negative effects of biosolids on broom are due to increased competition from other plants for light and water”
✓ located verbatim in the source · abstract, characters 2314–2446

Title

Scotch broom (cytisus scoparius) and soil nitrogen : ecological implications

Shaben, Jacqueline cIRcle (University of British Columbia) 2010. doi:10.14288/1.0092790

Other claims from this paper (12)

Association No difference in nitrogen availability was observed between broom-present and broom-absent plots.
Association A weak trend of higher NH4+ was found at Rocky Point.
Association Phosphorus availability at Rocky Point was significantly lower in broom-present plots.
Association Plant richness was independent of broom presence.
Association Multivariate analysis showed that species identity and abundance differed in broom-invaded plots.
Association Native species declined in broom-invaded plots.
Association Introduced species increased in broom-invaded plots.
Intervention effect Grass growth did not differ between broom and native shrub treatments in a bioassay.
Intervention effect Biosolids plots had the fewest broom seedlings compared with ammonium nitrate.
Intervention effect Vegetation biomass tended to be highest in biosolids plots.
Intervention effect No difference in broom germination rate was found when seeds grew without plant competition.
Intervention effect Addition of sewage biosolids to disturbed sites causes broom seedlings to lose their competitive advantage in dense vegetation.

Mechanismauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

There was evidence of competition for nitrogen by grasses, which could not be separated from competition for water.

Taxon: Fagus sylvaticaFagus sylvaticae0
Treatment: grassese5
Outcome: competition for nitrogene5
Qualifier: could not be separated from that of competition for watere5

Verbatim

e0
“We examined morphological and physiological responses of beech (Fagus sylvatica L.) seedlings to grass-induced below ground competition in full-light conditions”
✓ located verbatim in the source · abstract, characters 0–160

e5
“There was evidence of competition for nitrogen (N) by grasses, but its effect on seedling development could not be separated from that of competition for water”
✓ located verbatim in the source · abstract, characters 819–978

Title

Morphological and physiological responses of beech (Fagus sylvatica) seedlings to grass-induced belowground competition

L. Coll; P. Balandier; C. Picon-Cochard Tree Physiology 2004. doi:10.1093/treephys/24.1.45

Other claims from this paper (9)

Intervention effect Grass presence reduced diameter and height growth and annual shoot elongation of beech seedlings.
Intervention effect Grass presence reduced stem, root and leaf biomass of beech seedlings.
Intervention effect Grass presence increased the root to shoot biomass ratio of beech seedlings.
Intervention effect Grasses reduced soil water availability.
Association Soil water availability was positively correlated with daily seedling diameter increment of beech seedlings in full light.
Mechanism Beech seedlings seem to anticipate water deficit by closing stomata early.
Intervention effect Beech seedlings absorbed little nitrogen when grasses were present.
Observation Grasses took up more than 97% of the total nitrogen absorbed in the container.
Intervention effect Grass competition may strongly restrict the development of beech seedlings in full-light conditions.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Interspecific competition intensity for light and soil water decreased from 2018 to 2019.

Taxon: soybeanGlycine maxt0
Outcome: interspecific competition intensity for light and soil watere1
Direction: decreasede1
Setting: from 2018 to 2019e1

Verbatim

t0
“apple–soybean alley cropping system”
✓ located verbatim in the source · title, characters 91–126

e1
“The interspecific competition intensity for light and soil water decreased from 2018 to 2019, while root and soil nitrate nitrogen (NN) increased”
✓ located verbatim in the source · abstract, characters 1156–1301

Title

Photosynthetic characteristics, soil nutrients, and their interspecific competitions in an apple–soybean alley cropping system subjected to different drip fertilizer regimes on the Loess Plateau, China

Chengwei Luo; Ruoshui Wang; Chaonan Li; et al. Agricultural Water Management 2022. doi:10.1016/j.agwat.2022.108001

Other claims from this paper (9)

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Authors suggest nitrogen competition mediated the vine effect on tree growth.

Taxon: Liquidambar styracifluaLiquidambar styracifluat0
Outcome: tree growthe0
Qualifier: competition for nitrogene0

Verbatim

e0
“competition for nitrogen mediated the effects of belowground competition of vines on tree growth.”
✓ located verbatim in the source · abstract, characters 1221–1318

t0
“Liquidambar styraciflua”
✓ located verbatim in the source · title, characters 90–113

Title

Effects of Vine Competition on Availability of Light, Water, and Nitrogen to a Tree Host (Liquidambar styraciflua)

Lucia R. Dillenburg; Dennis F. Whigham; Alan H. Teramura; et al. American Journal of Botany 1993. doi:10.2307/2445347

Other claims from this paper (5)

Intervention effect Vines reduced light penetration through tree canopies.
Association The reduction in light penetration was not clearly related to tree growth.
Intervention effect Vines did not reduce predawn leaf water potential.
Intervention effect Belowground L. japonica competition reduced tree leaf nitrogen.
Association Leaf nitrogen concentration correlated positively with tree diameter growth.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors interpreted nitrogen competition as mediating effects of vines on tree growth.

Taxon: Liquidambar styracifluaLiquidambar styracifluat0
Outcome: tree growthe0
Qualifier: competition for nitrogene0

Verbatim

e0
“competition for nitrogen mediated the effects of belowground competition of vines on tree growth”
✓ located verbatim in the source · abstract, characters 1222–1318

t0
“LIQUIDAMBAR STYRACIFLUA”
✓ located verbatim in the source · title, characters 90–113

Title

EFFECTS OF VINE COMPETITION ON AVAILABILITY OF LIGHT, WATER, AND NITROGEN TO A TREE HOST (LIQUIDAMBAR STYRACIFLUA)

Lucia R. Dillenburg; Dennis F. Whigham; Alan H. Teramura; et al. American Journal of Botany 1993. doi:10.1002/j.1537-2197.1993.tb13797.x

Other claims from this paper (5)

Intervention effect Vines significantly reduced light penetration through tree canopies.
Association The light reduction was not clearly related to tree growth responses.
Intervention effect Vines did not reduce tree predawn leaf water potential.
Intervention effect Belowground competition with L. japonica significantly reduced tree leaf nitrogen.
Association Annual leaf nitrogen concentration correlated positively with tree diameter growth.

Method / resourceobservedoriginal resultpositivebasis n/a

Claim · model-written summary

STICS was improved to account for aluminum toxicity, water excess and crop–weed competition.

Taxon: maizeZea mayse1
Outcome: improved for the specific purpose of the studye0
Qualifier: Aluminum toxicity, water excess and competition between crop and weeds for light, water and nitrogene0

Not reportedComparatorValue

Verbatim

e0
“STICS, an existing crop model, had to be improved for the specific purpose of the study, in order to take into account Aluminum toxicity, water excess and competition between crop and weeds for light, water and nitrogen”
✓ located verbatim in the source · abstract, characters 523–742

e1
“case study on maize in small-scale farms of central Brazil”
✓ located verbatim in the source · abstract, characters 110–168

Title

Yield gap assessment and diagnosis in Brazil using a crop model

François Affholder; José Madeira Netto; Éric Scopel Agritrop (Cirad) 2004

Other claims from this paper (3)

Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors attributed better miscanthus development with melilot to stronger competition in woad intercrops and melilot nitrogen fixation.

Taxon: MiscanthusMiscanthust0
Outcome: developed bettere1
Qualifier: stronger competition for water, nutrients, and light in WAM and (ii) nitrogen fixation advantage in melilote0

Verbatim

e0
“stronger competition for water, nutrients, and light in WAM and (ii) nitrogen fixation advantage in melilot”
✓ located verbatim in the source · abstract, characters 986–1093

e1
“The miscanthus developed better in YAM than WAM.”
✓ located verbatim in the source · abstract, characters 905–953

t0
“Miscanthus (Miscanthus × giganteus Greef et Deuter)”
✓ located verbatim in the source · title, characters 40–91

Title

Improving the Ecological Performance of Miscanthus (Miscanthus × giganteus Greef et Deuter) through Intercropping with Woad (Isatis tinctoria L.) and Yellow Melilot (Melilotus officinalis L.)

Moritz von Cossel; Yasir Iqbal; Iris Lewandowski Agriculture 2019. doi:10.3390/agriculture9090194

Other claims from this paper (8)

Observation Woad reached full bloom in the second year.
Observation Melilot reached full bloom in the second year.
Observation Woad flowered earlier than melilot.
Observation Woad remained harvestable until spring 2019.
Observation Brown hare destroyed aboveground melilot in autumn 2018.
Observation Shed melilot seeds reemerged homogeneously in 2019.
Intervention effect Miscanthus developed better with yellow melilot than with woad.
Recommendation The authors concluded that melilot intercropping could improve ecological performance of miscanthus.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Increasing plant density negatively affected ajowan traits through competition for resources.

Taxon: ajowane0
Treatment: increasing the plant densitye0
Outcome: traits of ajowane0
Direction: negative effecte0
Qualifier: interspecific competition for light, nutrients, water and other resourcese0

Verbatim

e0
“increasing the plant density with enhancing the interspecific competition for light, nutrients, water and other resources, had negative effect on traits of ajowan.”
✓ located verbatim in the source · abstract, characters 3829–3992

Title

Effect of Plant Density and Nitrogen Fertilizeron Morphological Traits, Seed and Essential Oil Yield and Essential Oil Content of Ajowan (Carum copticum L.)

S.Ali Tabatabaei; ehsan shakeri DOAJ (DOAJ: Directory of Open Access Journals) 2017. doi:10.22067/jhorts4.v0i0.36944

Other claims from this paper (8)

Intervention effect At 60 plants per m2 and 120 kg/ha nitrogen, the highest flower number was 25/27 per plant.
Intervention effect At 60 plants per m2 and 120 kg/ha nitrogen, the highest flowering branch number was 7/77.
Intervention effect At 60 plants per m2 and 120 kg/ha nitrogen, the greatest plant top diameter was 32 cm.
Intervention effect At 60 plants per m2 and 120 kg/ha nitrogen, the highest seed yield was 301/4 kg/ha.
Intervention effect At 60 plants per m2 and 120 kg/ha nitrogen, the highest essential oil yield was 12/45 kg/ha.
Intervention effect Only nitrogen fertilizer significantly affected essential oil content, which was highest at 120 kg/ha nitrogen with a value of 4/07.
Association Seed yield was positively and significantly correlated with plant height, umbel number and flowering branch number.
Recommendation The authors concluded that ajowan requires substantial nitrogen for reasonable yield.

“competition for light, water and nitrogen”

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