Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Later nitrogen fertilization reduced its production benefit and tended to decrease dry yield.

Treatment: nitrogen fertilizere0
Outcome: dry pasturage yielde0
Direction: decrease tende0

Not reportedTaxonComparator

Verbatim

e0
“With fertilization time delay gradually,the role of nitrogen fertilizer on the increase production decreased uccording to the experiment data and there was decrease tend in the dry pasturage yield.”
✓ located verbatim in the source · abstract, characters 525–722

Title

Effect of Fertilization on Aboveground Biomass of Alpine Meadow in Region of Three-river Source

Zhang Dong-jie Chinese Qinghai Journal of Animal and Veterinary Sciences 2011

Other claims from this paper (7)

Intervention effect Fertilization significantly increased pasturage yield.
Observation Pasturage yield varied with fertilizer amount and timing, which interacted.
Intervention effect The first fertilizer amount increased dry yield by 138.65% versus no fertilizer.
Intervention effect The second fertilizer amount increased dry yield by 161.72% versus no fertilizer.
Intervention effect The third fertilizer amount increased dry yield by 122.51% versus no fertilizer.
Observation Yield had a parabolic response to fertilizer amount between 0 and 450 kg/hm2.
Recommendation Fertilizing between 10 and 25 June at 150–300 kg/hm2 urea was recommended for higher yield and lower cost.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mixture selection history decreased yield variability only in monocultures.

Taxon: mixturee0
Treatment: mixture selection historye0
Outcome: variabilitye0
Direction: decreasee0
Qualifier: only in monoculturese0

Not reportedComparator

Verbatim

e0
“a mixture selection history can increase yield productivity and decrease its variability, although only in monocultures”
✓ located verbatim in the source · abstract, characters 883–1002

Title

Data from: Ecological and evolutionary effects of crop diversity decrease yield variability

López-Angulo, Jesus; Stefan, Laura; Engbersen, Nadine; et al. Zenodo (CERN European Organization for Nuclear Research) 2022. doi:10.5281/zenodo.7544811

Other claims from this paper (3)

Observation Species yield varied more over years in mixtures than in monocultures.
Intervention effect Community yield variability was lower in mixtures than monocultures only with fertilizer under Mediterranean climate.
Intervention effect Mixture selection history increased yield productivity only in monocultures.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

N fertilization did not decrease species diversity over time.

Treatment: N fertilizatione0
Outcome: species diversitye0
Direction: did not decreasee0

Not reportedTaxonComparator

Verbatim

e0
“N fertilization did not decrease species diversity through time.”
✓ located verbatim in the source · abstract, characters 1389–1453

Title

Long‐Term Biomass Yield and Species Composition in Native Perennial Bioenergy Cropping Systems

Jacob M. Jungers; Adam T. Clark; Kevin Betts; et al. Agronomy Journal 2015. doi:10.2134/agronj15.0014

Other claims from this paper (14)

Observation Without N, switchgrass monocultures had among the highest biomass yields, 5.1 Mg ha −1.
Observation Without N, the eight-species mixture had among the highest biomass yields, 5.1 Mg ha −1.
Intervention effect With N, switchgrass monocultures yielded 6.8 Mg ha −1.
Intervention effect With N, four-species grass mixtures yielded 6.4 Mg ha −1.
Association Switchgrass biomass yield increased over time.
Association Canada wild rye biomass yield decreased over time.
Association High diversity mixtures maintained stable biomass yield over time.
Association Other mixtures showed nonlinear yield changes, possibly linked to species composition changes.
Observation Individual species relative abundance changed over time.
Observation Shannon diversity was constant except in the four-species legume mixture.
Observation Shannon diversity decreased in the four-species legume mixture.
Association Diversity was positively associated with biomass yield after establishment.
Association The diversity–yield association weakened with stand age.
Observation Native plant mixtures with or without N yielded similarly to highly productive monocultures.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

decrease the percentage of wild white clover

Taxon: PERMANENT PASTURESt0
Outcome: percentage of wild white clovere0
Direction: decreasee0

Not reportedTreatmentComparator

Verbatim

e0
“decrease the percentage of wild white clover”
✓ located verbatim in the source · abstract, characters 1063–1107

t0
“PERMANENT PASTURES”
✓ located verbatim in the source · title, characters 90–108

Title

THE EFFECTS OF VARIOUS INCREMENTS OF N, P AND K ON THE YIELD AND BOTANICAL COMPOSITION OF PERMANENT PASTURES

T. C. Chiasson Canadian Journal of Plant Science 1960. doi:10.4141/cjps60-034

Other claims from this paper (12)

Intervention effect Phosphorus, at rates up to 80 pounds per acre, brought about the most marked improvement
Intervention effect This element was responsible for highly significant increases in yield
Intervention effect increased wild white clover and useful grasses
Intervention effect decreased weeds, moss and bare ground markedly
Intervention effect Potassium, up to 60 pounds per acre, also gave highly significant increases in yield
Intervention effect Potassium had relatively little effect on the prevalence of species at first
Intervention effect by the fourth year had maintained white clover better than phosphorus
Intervention effect had also decreased weeds and moss
Intervention effect Nitrogen, at 15 pounds per acre, increased yields each year but only during the early part of the season
Intervention effect Thirty pounds per acre was superior to the 15-pound rate one year only
Intervention effect It actually tended to decrease yields during July and August
Intervention effect a corresponding increase in grasses

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

It actually tended to decrease yields during July and August

Taxon: PERMANENT PASTURESt0
Outcome: yieldse0
Direction: decreasee0

Not reportedTreatmentComparator

Verbatim

e0
“It actually tended to decrease yields during July and August”
✓ located verbatim in the source · abstract, characters 938–998

t0
“PERMANENT PASTURES”
✓ located verbatim in the source · title, characters 90–108

Title

THE EFFECTS OF VARIOUS INCREMENTS OF N, P AND K ON THE YIELD AND BOTANICAL COMPOSITION OF PERMANENT PASTURES

T. C. Chiasson Canadian Journal of Plant Science 1960. doi:10.4141/cjps60-034

Other claims from this paper (12)

Intervention effect Phosphorus, at rates up to 80 pounds per acre, brought about the most marked improvement
Intervention effect This element was responsible for highly significant increases in yield
Intervention effect increased wild white clover and useful grasses
Intervention effect decreased weeds, moss and bare ground markedly
Intervention effect Potassium, up to 60 pounds per acre, also gave highly significant increases in yield
Intervention effect Potassium had relatively little effect on the prevalence of species at first
Intervention effect by the fourth year had maintained white clover better than phosphorus
Intervention effect had also decreased weeds and moss
Intervention effect Nitrogen, at 15 pounds per acre, increased yields each year but only during the early part of the season
Intervention effect Thirty pounds per acre was superior to the 15-pound rate one year only
Intervention effect decrease the percentage of wild white clover
Intervention effect a corresponding increase in grasses

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mixture selection history increased yield productivity only in monocultures.

Taxon: mixturee0
Treatment: mixture selection historye0
Outcome: yield productivitye0
Direction: increasee0
Qualifier: only in monoculturese0

Not reportedComparator

Verbatim

e0
“a mixture selection history can increase yield productivity and decrease its variability, although only in monocultures”
✓ located verbatim in the source · abstract, characters 883–1002

Title

Data from: Ecological and evolutionary effects of crop diversity decrease yield variability

López-Angulo, Jesus; Stefan, Laura; Engbersen, Nadine; et al. Zenodo (CERN European Organization for Nuclear Research) 2022. doi:10.5281/zenodo.7544811

Other claims from this paper (3)

Observation Species yield varied more over years in mixtures than in monocultures.
Intervention effect Community yield variability was lower in mixtures than monocultures only with fertilizer under Mediterranean climate.
Intervention effect Mixture selection history decreased yield variability only in monocultures.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Drying stress did not necessarily decrease percentage cover of the studied sedges.

Taxon: studied sedgese0
Treatment: Drying stresse0
Outcome: percentage covere0
Direction: not necessarilye0

Not reportedComparator

Verbatim

e0
“Drying stress decreased the yield, but not necessarily the percentage cover of the studied sedges”
✓ located verbatim in the source · abstract, characters 1474–1571

Title

Management of dominant Carex species on floodplain meadows

Newman, Sonia K. Open Research Online (The Open University) 2014. doi:10.21954/ou.ro.0000ef00

Other claims from this paper (7)

Intervention effect Double cutting controlled C. acuta and C. acutiformis on floodplain meadows.
Association Cutting frequency mattered more than the timing of the additional cut for sedge control.
Intervention effect Timing of defoliation did not affect Carex traits.
Intervention effect Double cutting significantly decreased flowering in C. acuta relative to a single cut.
Intervention effect The microbial community had no effect on the plant community in the mesocosm.
Intervention effect Drying stress decreased yield of the studied sedges.
Intervention effect Drying increased cover of drought tolerant plants in field and mesocosm experiments.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Diversified crop rotation without chemical protection did not decrease weed species diversity or functional diversity relative to continuous rye cropping.

Taxon: ryeSecale cerealee1
Treatment: Diversified crop rotation with no chemical protectione1
Interactor: weede3weed
Outcome: weed species diversity or functional diversitye3
Direction: without a decreasee3
Comparator: continuous rye cropping (CC)e2

Verbatim

e1
“Diversified crop rotation with no chemical protection resulted in a satisfactory rye yield and reduced weed abundance”
✓ located verbatim in the source · abstract, characters 703–820

e2
“Long-term continuous rye cropping (CC) provided a background for comparison”
✓ located verbatim in the source · abstract, characters 424–499

e3
“without a decrease in weed species diversity or functional diversity”
✓ located verbatim in the source · abstract, characters 848–916

Title

Crop Rotation Compared with Continuous Rye Cropping for Weed Biodiversity and Rye Yield. A Case Study of a Long-Term Experiment in Poland

Magdalena Jastrzębska; Marta K. Kostrzewska; Marek Marks; et al. Agronomy 2019. doi:10.3390/agronomy9100644

Other claims from this paper (6)

Observation Diversified crop rotation without chemical protection gave a satisfactory rye yield.
Intervention effect Diversified crop rotation without chemical protection reduced weed abundance relative to continuous rye cropping.
Association Herbicide application had no effect on rye yield protection when rye was grown under crop rotation.
Association Herbicide application was harmful to weed biodiversity under crop rotation of rye.
Association Rye yield correlated negatively with weed biomass.
Association Rye yield showed no link with weed biodiversity.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Development decreased plant cover ratios, but the decrease ceased in the burnt plot in the third year.

Taxon: Sarcopoterium spinosumSarcopoterium spinosume3
Treatment: Developmente1
Outcome: plant cover ratiose1
Direction: decreasede1
Qualifier: but this decrease ceased in the burnt plot in the third yeare1

Not reportedComparator

Verbatim

e3
“prickly burnet (Sarcopoterium spinosum) control measures”
✓ located verbatim in the source · abstract, characters 31–87

e1
“Development decreased plant cover ratios, but this decrease ceased in the burnt plot in the third year”
✓ located verbatim in the source · abstract, characters 971–1073

Title

Effects of Prickly Burnet (Sarcopoterium spinosum (L.) Spach.) Control and Sheep Grazing on Hay Yield and Quality on Gökçeada Island, Turkey

Fırat Alatürk; Ahmet Gökkuş; Altıngül Özaslan Parlak; et al. Animals 2022. doi:10.3390/ani12223073

Other claims from this paper (18)

Intervention effect Pulling out, burning and cutting reduced prickly burnet shrub levels by 50-60% in the first year.
Intervention effect Pulling out, burning and cutting increased herbaceous species in the first year.
Intervention effect Forbs increased more in the pulled and burnt plots.
Intervention effect Grasses increased more in the cut plots.
Observation In the third year the shrub level rose to 60-65%.
Observation In the third year herbaceous species decreased, mostly in forbs.
Observation Plant cover was mostly composed of annual species, at 58%.
Intervention effect Grazing reduced plant cover.
Observation Crude protein, NDF and ADF content did not vary significantly over the experimental period.
Observation Digestible dry matter content did not vary significantly over the experimental period.
Intervention effect In the development plots, crude protein and digestible dry matter increased.
Intervention effect In the development plots, NDF decreased.
Intervention effect In the development plots, ADF did not change.
Intervention effect Development efforts did not produce significant differences in GDM yield or nutritional values.
Recommendation Burning is recommended over the entire rangeland for temporary control of S. spinosum.
Recommendation Burning or pulling out is recommended over smooth terrain for temporary control of S. spinosum.
Association Pulling out creates erosion on sloping surfaces.
Observation Cutting is difficult over stony and rough terrain.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Network complexity decreased at N120.

Taxon: maizeZea mayst0
Treatment: N120e0
Outcome: network complexitye0
Direction: decreasee0

Not reportedComparator

Verbatim

t0
“maize”
✓ located verbatim in the source · title, characters 71–76

e0
“a decrease in network complexity was observed at N120”
✓ located verbatim in the source · abstract, characters 1397–1450

Title

Impact of nitrogen fertilizer application on soil fungal diversity and maize yield variation in Shandong Province, China

Lara Sindhu; Yingying Song; Lili Li; et al. Plant Stress 2024. doi:10.1016/j.stress.2024.100460

Other claims from this paper (10)

“yield decrease”

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