Search claims · PlantClaims

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

A model was developed to estimate cone index from bulk density and soil texture.

Outcome: estimate CI from bulk densitye1

Not reportedComparator

Verbatim

e1
“A model was developed to estimate CI from bulk density”
✓ located verbatim in the source · abstract, characters 729–783

Title

Bulk Density Values Diagnostic of Restricted Root Growth in Coarse‐textured Soils

M. J. Vepraskas Soil Science Society of America Journal 1988. doi:10.2136/sssaj1988.03615995005200040042x

Other claims from this paper (2)

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)

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Soil bulk density significantly affected carrot yield and shape.

Taxon: carrotDaucus carotae0
Treatment: Soil bulk densitye0
Outcome: carrot yield and shapee0

Not reportedComparatorDirection

Verbatim

e0
“Soil bulk density had a significant effect on carrot yield and shape.”
✓ located verbatim in the source · abstract, characters 394–463

Title

Effects of soil bulk density and water regime on carrot yield harvested at different growth stages

I. G. A. M. Sri Agung; G. J. Blair Journal of Horticultural Science 1989. doi:10.1080/14620316.1989.11515922

Other claims from this paper (6)

Intervention effect At 1.70 Mg m−3 all measured carrot characteristics decreased significantly.
Observation At 1.70 Mg m−3, 0.91 to 1.56 cm of storage root projected above soil.
Observation Bulk-density effects were generally consistent at each growth stage in both water regimes.
Intervention effect Carrot yield was always higher with high than low water.
Observation Maximum carrot yield was 92.3 g plant−1 at 1.40 Mg m−3 under high water.
Intervention effect Under low moisture carrot shape was more conical at high bulk density.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The effect of increasing bulk density on rice emergence was considerable at lower soil moisture.

Taxon: RiceOryza sativat0
Treatment: increasing bulk densitye2
Outcome: effect of increasing bulk densitye2
Qualifier: considerable at tower soil moisturee2

Not reportedDirection

Verbatim

t0
“Rice Seedling Emergence”
✓ located verbatim in the source · title, characters 0–23

e2
“The effect of increasing bulk density was considerable at tower soil moisture”
✓ located verbatim in the source · abstract, characters 160–237

Title

Rice Seedling Emergence as Influenced by Soil Moisture, Bulk Density and Seeding Depth

C. V. Mali; S. B. Varade Journal of the Indian Society of Soil Science 1981

Other claims from this paper (6)

Intervention effect Rice seedling emergence decreased significantly with reduced soil moisture content.
Intervention effect Rice seedling emergence decreased significantly with increased soil bulk density.
Association Soil moisture of 33 per cent with 1.0 to 1.15 g/cc bulk density was the most favourable condition.
Association The rate of rice seedling emergence was reduced with increasing bulk density at all soil moisture levels.
Association Seedling emergence was faster in variety IR-8 than in Tuljapur-1.
Association IR-8 showed a higher percentage of seedling emergence than Tuljapur-1 at all seeding depths.

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

The harvested crop had a bulk density of 220 kg/m3.

Taxon: sweet sorghumt0
Outcome: bulk densitye0
Value: 220 kg/m3e0

Verbatim

e0
“a bulk density of 220 kg/m3”
✓ located verbatim in the source · abstract, characters 398–425

t0
“sweet sorghum”
✓ located verbatim in the source · title, characters 37–50

Title

A harvesting and handling system for sweet sorghum

G. E. Monroe; H. R. Sumner Paper, American Society of Agricultural Engineers 1983

Other claims from this paper (7)

Method / resource The total energy of the combined harvesting components at 8 t/h was 1.0 kW-h/t.
Method / resource The net energy of the combined harvesting components at 8 t/h was 0.3 kW-h/t.
Method / resource Leaf stripping used 55% of the total energy.
Method / resource The harvested crop had 4% leaves.
Method / resource The harvested crop had a 70% mass fraction of billets 30 to 40 cm long.
Method / resource The harvested crop had a 49 degree angle of repose.
Method / resource A 16-m3 self-unloading forage wagon successfully discharged the harvested crop at 2 t/h.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Root length decreased with increasing bulk density.

Taxon: CornZea mays subsp. mayst0
Treatment: bulk densitye0
Outcome: root lengthe0
Direction: decreasede0

Verbatim

e0
“As bulk density increased, root length decreased.”
✓ located verbatim in the source · abstract, characters 1315–1364

t0
“Corn Seedling”
✓ located verbatim in the source · title, characters 0–13

Title

Corn Seedling Root Growth as Influenced by Soil Physical Properties¹

S. D. Logsdon; R. B. Reneau; J. C. Parker Agronomy Journal 1987. doi:10.2134/agronj1987.00021962007900020010x

Other claims from this paper (9)

Observation Maximum root elongation occurred at the specified moisture, density and temperature ranges.
Intervention effect High bulk density reduced root elongation.
Intervention effect Oxygen stress reduced root elongation.
Intervention effect Low temperature reduced root elongation most strongly.
Intervention effect Water stress reduced root elongation.
Intervention effect At day six root length at 21°C was about 20% of that at 25°C.
Intervention effect At day six root length at 17°C was about 5% of that at 25°C.
Intervention effect High soil moisture stimulated root growth after four days.
Intervention effect Low soil moisture reduced root length only at the lowest level.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Wear treatment did not change soil bulk density.

Taxon: CREEPING BENTGRASSAgrostis stoloniferat0
Treatment: wear treatmente0
Outcome: soil bulk densitye0
Direction: unalterede0

Not reportedComparator

Verbatim

e0
“soil bulk density was unaltered by wear treatment”
✓ located verbatim in the source · abstract, characters 540–589

t0
“CREEPING BENTGRASS”
✓ located verbatim in the source · title, characters 38–56

Title

THE INFLUENCE OF WEAR AND NITROGEN ON CREEPING BENTGRASS GROWTH

G. P. KOHLMEIER; J. L. EGGENS Canadian Journal of Plant Science 1983. doi:10.4141/cjps83-019

Other claims from this paper (7)

Observation Turf injury was attributable to direct wear stress rather than compaction.
Intervention effect Increasing wear reduced thatch thickness, clipping yields and healing potential.
Intervention effect Leaf electrical resistance decreased with greater wear stress.
Method / resource Electrical resistance rapidly and reliably estimated leaf wear injury.
Intervention effect Nitrogen at 3 kg∙100 m −2 increased healing potential, greenness and root production versus zero N.
Intervention effect At 6 kg N, healing potential and root growth did not significantly increase over the 3-kg rate.
Intervention effect The 6-kg N rate increased annual bluegrass content.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Rice seedling emergence decreased significantly with increased soil bulk density.

Taxon: riceOryza sativae1
Treatment: increase in bulk densitye1
Outcome: emergencee1
Direction: decreasede1

Not reportedComparator

Verbatim

e1
“emergence of rice seedlings in a clay soil decreased significantly with reduction in soil moisture content and increase in bulk density”
✓ located verbatim in the source · abstract, characters 23–158

Title

Rice Seedling Emergence as Influenced by Soil Moisture, Bulk Density and Seeding Depth

C. V. Mali; S. B. Varade Journal of the Indian Society of Soil Science 1981

Other claims from this paper (6)

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Manure decreased the bulk density of clay loam soil.

Treatment: Manuree4
Outcome: bulk densitye4
Direction: decreasede4
Setting: clay loam soile4

Not reportedTaxon

Verbatim

e4
“Manure has increased the hydraulic conductivity and decreased the bulk density of clay loam soil”
✓ located verbatim in the source · abstract, characters 400–496

Title

Manure Effects on Crop Yields and Soil Properties

A. C. Mathers; B. A. Stewart Transactions of the ASAE 1984. doi:10.13031/2013.32916

Other claims from this paper (6)

Recommendation Annual application of 22 Mg/ha of beef feedlot manure is adequate for high yields of good quality crops.
Association Higher manure rates resulted in high nitrate levels in the forage.
Association Higher manure rates reduced yields in some cases.
Association Higher manure rates wasted nitrogen.
Association Higher manure rates contributed to high nitrate levels in the subsoil.
Association Manure increased the hydraulic conductivity of clay loam soil.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Repeated manipulation consistently increased the bulk density of wheat.

Taxon: wheatTriticum aestivume3
Treatment: Repeated manipulatione3
Outcome: bulk densitye3
Direction: increasede3

Verbatim

e3
“Repeated manipulation consistently increased the bulk density of wheat, decreased that of grain sorghum, and had little effect on that of corn”
✓ located verbatim in the source · abstract, characters 581–723

Title

Bulk Density Changes Effected by Insect-Produced Dust in Sound Wheat, Grain Sorghum and Corn

Carl Reed; George A. Milliken Transactions of the ASAE 1988. doi:10.13031/2013.30692

Other claims from this paper (4)

“bulk density”

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