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.

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Vertebrate species richness did not decrease with cacao yield in smallholder agroforests in Indonesia.

Taxon: cacaoTheobroma cacaoe0
Outcome: vertebratese1
Direction: did not decreasee1
Setting: Indonesiae0

Verbatim

e0
“Here, we integrate biodiversity and crop productivity data for smallholder cacao in Indonesia to exemplify for tropical agroforests that there is little relationship between yield and biodiversity under current management”
✓ located verbatim in the source · abstract, characters 238–459

e1
“Species richness of trees, fungi, invertebrates, and vertebrates did not decrease with yield”
✓ located verbatim in the source · abstract, characters 529–621

Title

Combining high biodiversity with high yields in tropical agroforests

Yann Clough; Jan Barkmann; Jana Juhrbandt; et al. Proceedings of the National Academy of Sciences 2011. doi:10.1073/pnas.1016799108

Other claims from this paper (4)

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Species richness of trees, fungi and invertebrates did not decrease with cacao yield in smallholder agroforests in Indonesia.

Taxon: cacaoTheobroma cacaoe0
Outcome: Species richness of trees, fungi, invertebratese1
Direction: did not decreasee1
Setting: Indonesiae0

Verbatim

e0
“Here, we integrate biodiversity and crop productivity data for smallholder cacao in Indonesia to exemplify for tropical agroforests that there is little relationship between yield and biodiversity under current management”
✓ located verbatim in the source · abstract, characters 238–459

e1
“Species richness of trees, fungi, invertebrates, and vertebrates did not decrease with yield”
✓ located verbatim in the source · abstract, characters 529–621

Title

Combining high biodiversity with high yields in tropical agroforests

Yann Clough; Jan Barkmann; Jana Juhrbandt; et al. Proceedings of the National Academy of Sciences 2011. doi:10.1073/pnas.1016799108

Other claims from this paper (4)

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Oil palm is the most efficient land use, with the lowest ratio between ecosystem carbon storage loss or net primary production decrease and yield.

Taxon: Oil palme0
Outcome: ratio between ecosystem carbon storage loss or net primary production (NPP) decrease and yielde0
Direction: loweste0

Verbatim

e0
“Oil palm cultivation leads to the highest carbon losses but it is the most efficient land use, providing the lowest ratio between ecosystem carbon storage loss or net primary production (NPP) decrease and yield”
✓ located verbatim in the source · abstract, characters 606–816

Title

Carbon costs and benefits of Indonesian rainforest conversion to plantations

Thomas Guillaume; Martyna M. Kotowska; Dietrich Hertel; et al. Nature Communications 2018. doi:10.1038/s41467-018-04755-y

Other claims from this paper (6)

Intervention effect Rainforests in Sumatra converted to jungle rubber lost 116 Mg C ha −1 of carbon.
Intervention effect Rainforests in Sumatra converted to rubber lost 159 Mg C ha −1 of carbon.
Intervention effect Rainforests in Sumatra converted to oil palm monocultures lost 174 Mg C ha −1 of carbon.
Observation Up to 21% of the carbon losses after rainforest conversion to tree plantations originated from belowground pools.
Observation Soil organic matter in the converted tree plantations still decreases a decade after conversion.
Observation Oil palm cultivation leads to the highest carbon losses among the land uses.

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

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.

Associationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Covering P. praecox with organic materials would decrease DBH, uniformity and evenness.

Taxon: P.praecoxPhyllostachys praecoxe5
Treatment: covered with organic materialse5
Outcome: DBH,uniformity and evennesse5
Direction: decrease ine5

Verbatim

e5
“P.praecox covered with organic materials would lead to improper age structure,decrease in DBH,uniformity and evenness,degradation of forest and decreased bamboo shoot yield”
✓ located verbatim in the source · abstract, characters 816–988

Title

Stand structure and bamboo shoot number production based assessment of degradation degree of Phyllostachys praecox covered with organic materials

Liu Li; Shuanglin Chen; Yanhong Li Zhejiang Linxueyuan xuebao 2010

Other claims from this paper (6)

Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Lower fluorescence yield was significantly related to reduced fragment survival and regeneration.

Taxon: submerged aquatic plant speciese1
Treatment: decrease in F v / F me0
Outcome: fragment survival and regeneratione0
Direction: reducede0
Qualifier: decrease in F v / F me0

Verbatim

e0
“a decrease in F v / F m was significantly related to reduced fragment survival and regeneration.”
✓ located verbatim in the source · abstract, characters 1004–1100

e1
“Submerged aquatic plant species predominantly spread through vegetative propagules”
✓ located verbatim in the source · abstract, characters 9–91

Title

Chlorophyll fluorometry sheds light on the role of desiccation resistance for vegetative overland dispersal of aquatic plants

Patrick Heidbüchel; Peter Jahns; Andreas Hussner Freshwater Biology 2019. doi:10.1111/fwb.13313

Other claims from this paper (11)

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.

Associationobservedoriginal resultmixedmeasured

Claim · model-written summary

Biomass, seed yield and branch number first decreased and then increased with spacing.

Outcome: biomass,seed yield,and branch numbere0
Direction: increased after an initial decreasee0
Comparator: increasing distance between plantse0

Not reportedTaxon

Verbatim

e0
“With the increasing distance between plants,the individual number and plant height of dominant species increased,and the biomass,seed yield,and branch number increased after an initial decrease”
✓ located verbatim in the source · abstract, characters 801–994

Title

Competitions between wetland dominant plants in water-level fluctuation zone

Hong Liu Shengtaixue zazhi 2011

Other claims from this paper (10)

Observation The dominant community averaged 1.4 m height, 90% cover and 40 abundance.
Observation Community cover was 90%.
Observation Community abundance was 40.
Observation Maximum individual height was 2.6 m.
Observation Maximum individual biomass was 1622.3 g.
Association Competition intensity declined with distance between plants.
Observation Competition was strongest at plant spacing of 0-10 cm.
Association At 0-30 cm spacing, interspecific competition exceeded intraspecific competition.
Association Dominant-species individual number and height increased with plant spacing.
Association Species with high propagation capacity and growth rate had a competition advantage.

“yield decrease”

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