Search claims · PlantClaims

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Each additional sandstorm hour during the winter wheat growing season corresponded to a 1.4% yield decrease.

Taxon: winter wheatTriticum aestivume0
Treatment: sandstorme0
Outcome: yielde0
Direction: decreasee0
Value: 1.4%e0

Verbatim

e0
“Each additional hour of sandstorm during the winter wheat growing season corresponds to a 1.4% decrease in yield.”
✓ located verbatim in the source · abstract, characters 615–728

Title

Impacts of Sandstorms on Wheat Yield in Northern China

Jue Du; Lingling Hou; Yuanyuan Zhao; et al. American Journal of Agricultural Economics 2025. doi:10.1111/ajae.12532

Other claims from this paper (5)

Association Sandstorms reduced northern China winter wheat yield by 14.8%.
Association Sandstorms significantly decreased planted areas.
Observation Farmers increased fertilizer investments in response to sandstorms.
Observation Farmers increased labor investments in response to sandstorms.
Recommendation Timely irrigation after sandstorms, especially in drier areas, can mitigate adverse effects on wheat production.

Associationauthor interpretationoriginal resultnegativeprojected

Claim · model-written summary

Projected precipitation decline in northwestern Halkidiki may decrease olive yield through higher water needs.

Taxon: OliveOlea europaeat0
Outcome: yielde1
Direction: decreasee1
Qualifier: possiblee1
Setting: northwestern Halkidikie1

Verbatim

e1
“Precipitation is projected to decrease in northwestern Halkidiki, leading to enhanced water needs and resulting in a possible decrease in yield”
✓ located verbatim in the source · abstract, characters 395–538

t0
“Olive Crop Production in Halkidiki”
✓ located verbatim in the source · title, characters 32–66

Title

The Impact of Climate Change on Olive Crop Production in Halkidiki, Greece

Ilias Kalfas; Christina Anagnostopoulou; Errikos Michail Manios 16th International Conference on Meteorology, Climatology and Atmospheric Physics—COMECAP 2023 2023. doi:10.3390/environsciproc2023026069

Other claims from this paper (2)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Pruning caused a temporary decrease in total marigold yield during regeneration.

Taxon: Calendula officinalisCalendula officinalist0
Treatment: pruninge2
Outcome: total yielde2
Direction: decreasee2

Verbatim

t0
“marigold (Calendula officinalis L.)”
✓ located verbatim in the source · title, characters 74–109

e2
“the regeneration period following pruning led to a temporary decrease in total yield”
✓ located verbatim in the source · abstract, characters 548–632

Title

Effect of alternative nutrient supplements on the growth and flowering of marigold (Calendula officinalis L.)

Judit Csabai; Anzhela Kolesnyk; Beatris Kish; et al. Fenntartható Tájgazdálkodási Tudományos Műhely konferenciája 2025 : Innovatív megoldások a XXI. század mezőgazdaságában 2025. doi:10.71066/fttmk.1.13

Other claims from this paper (9)

Association Flower number in marigold dropped from 641 in July to 129 after pruning.
Intervention effect Pruned marigold rows had lower average flower diameter (3.00 to 3.16 cm) than non-pruned rows.
Association Rhyolite-treated marigold rows gave the highest fresh flower weight in June (12.42 g/row).
Intervention effect In July, flocculant gave the highest marigold yield (488.6 g), compared with 362 g in the control.
Observation In August, poultry manure rows produced 467.25 g of marigold flowers.
Observation In August, flocculant-treated marigold rows yielded 487.33 g.
Association Flocculant gave the highest cumulative marigold yield over the year (980.76 g per row).
Association Flocculant probably had a positive long-term effect on marigold flower production.
Recommendation Pruning of marigold should be applied only purposefully and with proper timing.

Intervention effectobservedoriginal resultno effectnot significant (as stated)projected

Claim · model-written summary

Keeping available water depletion below 25% produced no significant crop-yield decrease.

Treatment: maintaining AWC depletion below 25%e0
Outcome: crop yielde0
Direction: no significant decreasee0

Not reportedTaxonComparator

Verbatim

e0
“maintaining AWC depletion below 25% resulted in no significant decrease in crop yield and biomass”
✓ located verbatim in the source · abstract, characters 2160–2257

Title

Water Productivity of Irrigated Tomatoes in Eastern Canada Based on AquaCrop Simulations

Naresh Kumar Thangaraju Arumugagounder; Samuel Ihuoma; Chandra A. Madramootoo Journal of the ASABE 2022. doi:10.13031/ja.14792

Other claims from this paper (8)

Method / resource Measured seasonal harvest index improved AquaCrop performance over defaults.
Method / resource Calibration dry-yield RMSE was 0.57 ton ha-1.
Method / resource Calibration biomass RMSE was 0.89 ton ha-1.
Method / resource Verification dry-yield RMSE was 0.28 ton ha-1.
Method / resource Verification biomass RMSE was 0.01 ton ha-1.
Intervention effect Keeping available water depletion below 25% produced no significant biomass decrease.
Recommendation The authors recommend maintaining available water depletion below 25% for irrigated tomato production.
Observation Water productivity was highest in fully irrigated fields across soil types.

Observationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

The disease led to a significant yield decrease.

Taxon: cherrye0 t1 e2 e3
Interactor: Agrobacterium tumefaciens Conn.Agrobacterium tumefaciense0 t1 e2 e3pathogen
Outcome: yielde0 t1 e2 e3
Direction: decreasee0 t1 e2 e3

Verbatim

e0
“leads to a significant decrease in yield”
✓ located verbatim in the source · abstract, characters 1001–1041

t1
“cherry”
✓ located verbatim in the source · title, characters 25–31

e2
“virulent bacterium Agrobacterium tumefaciens Conn.”
✓ located verbatim in the source · abstract, characters 179–229

e3
“the incubation period of the disease begins”
✓ located verbatim in the source · abstract, characters 700–743

Title

Bacterial root cancer of cherry in the conditions of the Western part of Azerbaijan

L. Huseynova Interdepartmental Thematic Scientific Collection of Phytosanitary safety 2024. doi:10.36495/1606-9773.2023.69.330-337

Other claims from this paper (7)

Observation Bacterial root cancer was widespread in western cherry orchards.
Observation Bacterial root cancer severely damaged cherry trees.
Observation The disease incubation period was 4—7 weeks depending on temperature.
Observation Cancer growths did not rapidly kill cherry trees.
Observation The pathogen suppressed overall cherry growth and viability.
Observation The pathogen reduced cherry resistance to other infections.
Observation Affected cherry plants eventually dried and died.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Grain corn yield did not decrease with cover crops.

Taxon: grain corne5
Treatment: with CCe5
Outcome: yielde5
Direction: did not decreasee5

Not reportedComparator

Verbatim

e5
“Cover crops significantly increased vegetable crop yields and decreased the silage corn yield; however, grain corn, soybean, and winter wheat yield did not decrease with CC”
✓ located verbatim in the source · abstract, characters 1013–1185

Title

Do Cover Crops Increase Subsequent Crop Yield in Temperate Climates? A Meta-Analysis

Inderjot Chahal; Laura L. Van Eerd Sustainability 2023. doi:10.3390/su15086517

Other claims from this paper (15)

Intervention effect Legume cover crop species increased subsequent crop yield significantly more than grass, by 14%.
Intervention effect Legume cover crop species increased subsequent crop yield significantly more than nonlegume broadleaves, by 7%.
Intervention effect Legume cover crop species increased subsequent crop yield significantly more than mixtures, by 2%.
Intervention effect Incorporating cover crop residue into soil increased crop yield by about 15% compared with leaving the residue on the soil surface.
Intervention effect Grass cover crops enhanced crop yield by 14% relative to no cover crop in non-organic vegetable systems.
Intervention effect Legume cover crops enhanced crop yield by 19% relative to no cover crop in non-organic vegetable systems.
Intervention effect Legume cover crops increased crop yield by 18% relative to no cover crop in coarse textured soil.
Intervention effect Legume cover crops increased crop yield by 4% relative to no cover crop in medium textured soil.
Intervention effect Legume cover crops increased crop yield by 11% relative to no cover crop under high precipitation.
Intervention effect Cover crops significantly increased vegetable crop yields.
Intervention effect Cover crops decreased silage corn yield.
Intervention effect Soybean yield did not decrease with cover crops.
Intervention effect Winter wheat yield did not decrease with cover crops.
Intervention effect Cover crops in no-tillage and plow tillage systems increased crop yield compared with the no-CC control.
Recommendation Crop yield response to cover crops might become more robust when pedo-climatic and agronomic factors are considered.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Winter wheat yield did not decrease with cover crops.

Taxon: winter wheatTriticum aestivume5
Treatment: with CCe5
Outcome: yielde5
Direction: did not decreasee5

Not reportedComparator

Verbatim

e5
“Cover crops significantly increased vegetable crop yields and decreased the silage corn yield; however, grain corn, soybean, and winter wheat yield did not decrease with CC”
✓ located verbatim in the source · abstract, characters 1013–1185

Title

Do Cover Crops Increase Subsequent Crop Yield in Temperate Climates? A Meta-Analysis

Inderjot Chahal; Laura L. Van Eerd Sustainability 2023. doi:10.3390/su15086517

Other claims from this paper (15)

Intervention effect Legume cover crop species increased subsequent crop yield significantly more than grass, by 14%.
Intervention effect Legume cover crop species increased subsequent crop yield significantly more than nonlegume broadleaves, by 7%.
Intervention effect Legume cover crop species increased subsequent crop yield significantly more than mixtures, by 2%.
Intervention effect Incorporating cover crop residue into soil increased crop yield by about 15% compared with leaving the residue on the soil surface.
Intervention effect Grass cover crops enhanced crop yield by 14% relative to no cover crop in non-organic vegetable systems.
Intervention effect Legume cover crops enhanced crop yield by 19% relative to no cover crop in non-organic vegetable systems.
Intervention effect Legume cover crops increased crop yield by 18% relative to no cover crop in coarse textured soil.
Intervention effect Legume cover crops increased crop yield by 4% relative to no cover crop in medium textured soil.
Intervention effect Legume cover crops increased crop yield by 11% relative to no cover crop under high precipitation.
Intervention effect Cover crops significantly increased vegetable crop yields.
Intervention effect Cover crops decreased silage corn yield.
Intervention effect Grain corn yield did not decrease with cover crops.
Intervention effect Soybean yield did not decrease with cover crops.
Intervention effect Cover crops in no-tillage and plow tillage systems increased crop yield compared with the no-CC control.
Recommendation Crop yield response to cover crops might become more robust when pedo-climatic and agronomic factors are considered.

Associationauthor interpretationoriginal resultnegativeprojected

Claim · model-written summary

Above background temperature in south China, early rice yield was projected to decrease.

Taxon: early ricee0
Outcome: early rice yielde0
Direction: decreasee0
Setting: south Chinae0

Verbatim

e0
“above the background temperature in south China, the early rice yield will decrease”
✓ located verbatim in the source · abstract, characters 1635–1718

Title

Asymmetric Differences in the Effects of Average Air Temperature and Solar Radiation on Early Rice and Late Rice Yield

Shengbao Wei; Anchun Peng; Jing Liu; et al. Atmosphere 2021. doi:10.3390/atmos12121541

Other claims from this paper (13)

Intervention effectobservedreview summarynegativeprojected

Claim · model-written summary

Climate change is estimated to decrease wheat yield by 10-14%.

Taxon: wheatTriticum aestivume0
Treatment: CCe0
Outcome: wheat yielde0
Direction: decreasee0
Value: 10-14%e0

Not reportedComparator

Verbatim

e0
“By changing the environmental parameters, it is estimated that CC will lead to a 10-14% decrease in wheat yield.”
✓ located verbatim in the source · abstract, characters 479–591

Title

Effect of Climate Change on Wheat Yield and Water Productivity in Iran and the World

N. Heydari; F. Taran Iranica Journal of Energy and Environment 2024. doi:10.5829/ijee.2025.16.02.08

Other claims from this paper (11)

Intervention effect Climate change has adversely affected wheat yield, especially rain fed wheat in Iran and elsewhere.
Observation Some studies report wheat yield changes greater than the 10-14% estimate.
Mechanism Temperature increase and heat stress are identified as the most important factor in wheat climate impacts.
Intervention effect Climate change can reduce the wheat crop growth period.
Intervention effect Climate change can reduce the planting-to-flowering period.
Intervention effect Climate change can shorten the seed filling period.
Intervention effect Climate change can reduce the flowering-to-maturity and seed production period.
Recommendation Adaptation measures include heat-tolerant, low-water-requirement cultivars, longer-growing cultivars and planting date changes.
Recommendation Adaptation measures include improved on-farm water management, residue management and increased soil organic matter.
Recommendation Wheat adaptation strategies should focus on reducing temperature and heat stress effects, especially at critical growth stages.
Recommendation Climate effects on strategic crops should be mainstreamed and prioritized in national and sub-national research, especially in Iran, to ensure food security.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Reducing potassium to N60P60K30 did not significantly decrease soybean yield.

Taxon: soybeanGlycine maxe0
Treatment: N60P60K30e0
Outcome: soybean yielde0
Direction: no significant decreasee0

Not reportedComparator

Verbatim

e0
“There was no significant decrease in soybean yield in the variant of the experiment with a decrease in the proportion of potassium in the composition of complete mineral fertilizer (N60P60K30)”
✓ located verbatim in the source · abstract, characters 1454–1646

Title

Productivity and quality of soybean seeds with different fertilization on podzolized chernozem

H.M. Hospodarenko; I.V. Prokopchuk; K. P. Leonova; et al. Collected Works of Uman National University of Horticulture 2020. doi:10.31395/2415-8240-2020-97-1-136-144

Other claims from this paper (7)

Intervention effect Different fertilizer regimes increased crop yield by 18–77 %.
Intervention effect N110P60K80 in rotation, including N60P60K60 under soybean, gave the highest seed yield of 3,02 t/ha.
Intervention effect Excluding nitrogen from N60P60K60 reduced yield by 26 %.
Intervention effect Excluding phosphorus from complete fertilizer reduced yield by 17 %.
Intervention effect Excluding potassium from complete fertilizer reduced yield by 11 %.
Intervention effect N60К60 produced the largest 1000-seed mass.
Intervention effect N60P60K60 and N60P60K30 produced the highest seed protein content.

“yield decrease”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics