Search claims · PlantClaims

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

The scheme effectively estimated crop density.

Taxon: crope0
Outcome: crop density estimatione0

Not reportedComparatorValue

Verbatim

e0
“the effectiveness of the proposed scheme of crop density estimation.”
✓ located verbatim in the source · abstract, characters 954–1022

Title

Crop detection and density estimation combing LiDAR points cloud with remote sensing image

Yun Yang; Ying Lin Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2009. doi:10.1117/12.834012

Other claims from this paper (1)

Method / resource The fused scheme improved crop detection accuracy.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Higher crop density increased grain yield.

Taxon: maizeZea mayst0
Treatment: Increasing crop densitye0
Outcome: GYe0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Increasing crop density significantly increased the PH, EH and GY”
✓ located verbatim in the source · abstract, characters 1042–1107

t0
“maize”
✓ located verbatim in the source · title, characters 30–35

Title

The effect of crop density on maize grain yield

Mandić Violeta; Bijelić Zorica; Krnjaja Vesna; et al. DOAJ (DOAJ: Directory of Open Access Journals) 2016

Other claims from this paper (13)

Observation Plant height, ear height and leaf number were higher in 2006 than 2007.
Observation Ear height was higher in 2006 than 2007.
Observation Leaf number was higher in 2006 than 2007.
Observation Ear length was higher in 2006 than 2007.
Observation Grain weight per ear was higher in 2006 than 2007.
Observation Cob weight was higher in 2006 than 2007.
Observation Thousand grain weight was higher in 2006 than 2007.
Observation Grain yield was higher in 2006 than 2007.
Intervention effect Higher crop density increased plant and ear height.
Intervention effect Higher crop density decreased ear length, grain numbers and ear diameter.
Intervention effect Higher crop density decreased grain weight per ear, cob weight and hundred grain weight.
Observation A density of 71429 plants ha-1 gave the highest grain yield.
Recommendation The authors recommend 71429 plants ha-1 for this hybrid in Srem.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Crop-load influence on flower density, fruit density and yield was generally most pronounced at 50% crop load.

Taxon: AppleMalus domesticat0
Treatment: 50% crop levele0
Outcome: flower density, fruit density, and yielde0
Direction: most pronouncede0
Qualifier: generallye0

Not reportedComparator

Verbatim

e0
“proportional influence on flower density, fruit density, and yield was generally most pronounced at the 50% crop level.”
✓ located verbatim in the source · abstract, characters 754–873

t0
“Apple”
✓ located verbatim in the source · title, characters 86–91

Title

Crop Load Overwhelms Effects of Gibberellic Acid and Ethephon on Floral Initiation in Apple

Tory Schmidt; Don C. Elfving; James R. McFerson; et al. HortScience 2009. doi:10.21273/hortsci.44.7.1900

Other claims from this paper (10)

Intervention effect Initial crop load was the primary determinant of apple return bloom in all trials.
Intervention effect GA 4 + 7 consistently reduced apple floral initiation.
Intervention effect Ethephon promoted apple floral initiation.
Intervention effect Historically alternating Cameo trees had greater flowering sensitivity to ethephon than annually bearing Cameo trees.
Intervention effect Historically alternating Cameo trees had less flowering sensitivity to GA 4 + 7 than annually bearing Cameo trees.
Mechanism The authors suggest nascent buds have a predilection for a fate before bioregulator or seed gibberellin influence.
Intervention effect Light crop loads generally promoted apple shoot extension.
Intervention effect GA 4 + 7 applications generally promoted apple shoot extension.
Intervention effect Heavy crops generally reduced apple shoot extension.
Intervention effect Ethephon generally reduced apple shoot extension.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Increasing crop density decreased grain bulk density in spring barley in both years.

Taxon: spring barleyHordeum vulgaree0
Treatment: Increasing crop densitye1
Outcome: grain bulk densitye1
Direction: decreasee1

Verbatim

e0
“In spring barley”
✓ located verbatim in the source · abstract, characters 423–439

e1
“Increasing crop density caused a decrease in grain bulk density”
✓ located verbatim in the source · abstract, characters 1257–1320

Title

Improving upon the interrow hoed cereal system: the effects of crop density and row spacing on intrarow weeds and crop parameters in spring barley

Margaret R. McCollough; Bo Melander Weed Science 2022. doi:10.1017/wsc.2022.14

Other claims from this paper (13)

Intervention effect Increasing crop density suppressed the growth of intrarow weeds in spring barley.
Association Increasing barley density raised the percent reduction in intrarow surrogate weed biomass from 49% to 82%.
Association Increasing barley density raised the percent reduction in ambient weed biomass from 53% to 99%.
Association Increasing crop density decreased grain protein and 1,000-kernel weight in one year.
Intervention effect Row spacing had no effect on intrarow weeds in spring barley.
Intervention effect Crop yields were 7% to 8% lower at 20 cm row spacing than at 15 cm.
Recommendation Narrow row sowing is advisable for spring barley because it avoids the yield loss at 20 cm.
Intervention effect Barley yields were unaffected by increasing crop density.
Intervention effect The effect of preemergence tine harrowing on spring barley was inconsistent.
Intervention effect In one year, harrowing reduced surrogate and ambient weed biomass.
Intervention effect In one year, harrowing increased spring barley yield.
Intervention effect In another year, harrowing increased ambient weed biomass.
Intervention effect In another year, harrowing did not affect yield or surrogate weed biomass.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Lower crop sowing density did not negatively affect crop yield.

Taxon: crope0
Treatment: lower sowing densitye0
Outcome: crop yielde0
Direction: without negatively affectinge0

Not reportedComparator

Verbatim

e0
“A lower sowing density of the crop increased floral resources without negatively affecting crop yield”
✓ located verbatim in the source · abstract, characters 1570–1671

Title

Reduced crop density increases floral resources to pollinators without affecting crop yield in organic and conventional fields

William Sidemo‐Holm; Romain Carrié; Johan Ekroos; et al. Journal of Applied Ecology 2021. doi:10.1111/1365-2664.13887

Other claims from this paper (7)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Crop species affected weed species density.

Taxon: crop speciese0
Treatment: crop speciese0
Interactor: weed speciese0weed
Outcome: weed species densitye0

Not reportedDirection

Verbatim

e0
“crop species can effect on weed species density”
✓ located verbatim in the source · abstract, characters 583–630

Title

Correlation between weeds and crops

International Journal of Biosciences (IJB) 2013. doi:10.12692/ijb/3.5.117-124

Other claims from this paper (11)

Association The first two CCA axes explained 93.2% of weed density variation at sampling 1.
Association The first two CCA axes explained 82.5% of weed density variation at sampling 2.
Association The first two CCA axes explained 88.5% of weed density variation at sampling 3.
Association The first two CCA axes explained 81.3% of weed density variation at sampling 4.
Association Lallemantia and Phaseolus 1 showed maximum correlation.
Association Helianthus and Zea showed maximum correlation.
Association Cicer and Zea showed minimum correlation.
Observation Chenopodium album dominated weeds at the beginning of crop life cycles.
Observation Polygonum aviculare dominated weeds at the end of crop life cycles.
Observation Ricinus plots were weed free in the fourth sampling.
Mechanism Authors suggest competition and allelopathy may explain weed-free Ricinus plots.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Higher crop density increased plant and ear height.

Taxon: maizeZea mayst0
Treatment: Increasing crop densitye0
Outcome: PH, EHe0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Increasing crop density significantly increased the PH, EH and GY”
✓ located verbatim in the source · abstract, characters 1042–1107

t0
“maize”
✓ located verbatim in the source · title, characters 30–35

Title

The effect of crop density on maize grain yield

Mandić Violeta; Bijelić Zorica; Krnjaja Vesna; et al. DOAJ (DOAJ: Directory of Open Access Journals) 2016

Other claims from this paper (13)

Observation Plant height, ear height and leaf number were higher in 2006 than 2007.
Observation Ear height was higher in 2006 than 2007.
Observation Leaf number was higher in 2006 than 2007.
Observation Ear length was higher in 2006 than 2007.
Observation Grain weight per ear was higher in 2006 than 2007.
Observation Cob weight was higher in 2006 than 2007.
Observation Thousand grain weight was higher in 2006 than 2007.
Observation Grain yield was higher in 2006 than 2007.
Intervention effect Higher crop density increased grain yield.
Intervention effect Higher crop density decreased ear length, grain numbers and ear diameter.
Intervention effect Higher crop density decreased grain weight per ear, cob weight and hundred grain weight.
Observation A density of 71429 plants ha-1 gave the highest grain yield.
Recommendation The authors recommend 71429 plants ha-1 for this hybrid in Srem.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Weed suppression was highly correlated with cover crop plant density.

Taxon: cover cropt0
Organ / stage: cover crop plant densitye0
Outcome: cover crop plant densitye0

Not reportedDirection

Verbatim

e0
“was highly correlated with cover crop plant density”
✓ located verbatim in the source · abstract, characters 1257–1308

t0
“Cover Crop”
✓ located verbatim in the source · title, characters 7–17

Title

Winter Cover Crop Growth and Weed Suppression on the Central Coast of California¹

ERIC B. BRENNAN; RICHARD F. SMITH Weed Technology 2005. doi:10.1614/wt-04-246r1.1

Other claims from this paper (8)

Observation Mustard produced more early-season biomass than oats and legume/oats mix.
Observation Cover crops did not differ in aboveground biomass at the end of growth.
Observation Mustard provided the greatest suppression of weed biomass.
Observation Mustard provided the greatest suppression of burning nettle seed production.
Association Weed suppression varied with early canopy development.
Observation In year 1, postincorporation weed emergence ranked legume/oats mix above oats above mustard.
Observation Postincorporation weed emergence did not differ among cover crops in year 2.
Recommendation The authors suggest that legume/oats mix could worsen weed problems in subsequent vegetable crops.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Crop value generally rose with crop density.

Treatment: CDe0
Outcome: Crop valuee0
Direction: increasede0

Not reportedTaxon

Verbatim

e0
“Crop value generally increased with increasing CD and declined with increasing CMD”
✓ located verbatim in the source · abstract, characters 640–722

Title

072 MITES AND CROP DENSITY INFLUENCE `DELICIOUS' APPLES

Richard P. Marini; Douglas G. Pfeiffer HortScience 1994. doi:10.21273/hortsci.29.5.438c

Other claims from this paper (10)

Association Apple yield rose with crop density.
Association Apple yield declined with cumulative mite days.
Observation Fruit weight, red color and soluble solids generally declined as mite load rose.
Observation Fruit weight, red color and soluble solids generally declined as crop density rose.
Observation Most response variables had a significant mite load by crop density interaction.
Observation Crop value generally declined with mite load.
Observation Mite feeding reduced crop value most under high crop density.
Recommendation Authors propose 1000 CMD economic injury threshold for light loads.
Recommendation Authors propose 500 CMD economic injury threshold for moderate loads.
Recommendation Authors propose 300 CMD economic injury threshold for heavy loads.

Associationobservedreview summarynegativebasis n/a

Claim · model-written summary

Increasing soil bulk density generally harms crop growth.

Taxon: cropst0
Treatment: increasing soil bulk densitye0
Outcome: crop growthe0
Direction: detrimentale0

Verbatim

e0
“increasing soil bulk density is detrimental to crop growth”
✓ located verbatim in the source · abstract, characters 205–263

t0
“crops”
✓ located verbatim in the source · abstract, characters 51–56

Title

Soil Compaction and Crop Growth

Donald C. Erbach SAE technical papers on CD-ROM/SAE technical paper series 1987. doi:10.4271/872012

Other claims from this paper (4)

“crop density”

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