Search claims · PlantClaims

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Low carbon inhibited root growth through high bulk density.

Taxon: treet0
Outcome: Root growth is also inhibitede0
Qualifier: high bulk densitye0

Verbatim

e0
“Root growth is also inhibited at low C contents, because of the high bulk density.”
✓ located verbatim in the source · abstract, characters 1136–1218

t0
“tree root growth”
✓ located verbatim in the source · title, characters 75–91

Title

Carbon content and bulk-density of an irrigated natrixeralf in relation to tree root growth and orchard management

WW Emerson; RC Foster; JM Tisdall; et al. Australian Journal of Soil Research 1994. doi:10.1071/sr9940939

Other claims from this paper (5)

Mechanismauthor interpretationoriginal resultsimulated

Claim · model-written summary

Reduced root growth accounted for the largest effect of bulk density on potassium uptake.

Taxon: soybeansGlycine maxt0
Treatment: soil bulk densitye0
Outcome: K uptakee0
Qualifier: reduction of root growthe0

Verbatim

e0
“The greatest effect of soil bulk density on K uptake was due to reduction of root growth”
✓ located verbatim in the source · abstract, characters 1446–1534

t0
“soybeans”
✓ located verbatim in the source · title, characters 73–81

Title

Simulation of effects of soil bulk density and p addition on k uptake by soybeans

M. Silberbush; W. B. Hallmark; S. A. Barber Communications in Soil Science and Plant Analysis 1983. doi:10.1080/00103628309367364

Other claims from this paper (4)

Method / resource Predicted and observed K uptake agreed for the P by K factorial.
Method / resource Predicted and observed K uptake agreed for the K by soil bulk density factorial.
Observation The model predicted maximum potassium influx at soil bulk density of 1.38 g cm‐3.
Mechanism Phosphorus addition increased potassium uptake through its effect on root growth.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors attributed the ridging benefit to lower penetration resistance and bulk density.

Taxon: cowpeaVigna unguiculatat0
Outcome: soil penetration resistance and bulk densitye0
Qualifier: lower soil penetration resistance and bulk densitye0

Verbatim

t0
“millet-cowpea”
✓ located verbatim in the source · title, characters 75–88

e0
“which was attributed to lower soil penetration resistance and bulk density”
✓ located verbatim in the source · abstract, characters 1095–1169

Title

On-farm evaluation of ridging and residue management options in a Sahelian millet-cowpea intercrop. 2. Crop development

K. Michels; C.L. Bielders Soil Use and Management 2002. doi:10.1079/sum2002136

Other claims from this paper (9)

Observation Millet grain yields on bare and ridged plots fell below 100 kg grain ha-1 after year one.
Mechanism The authors attributed low millet yields mainly to acidification and organic matter loss.
Intervention effect Ridging increased cowpea hay production 330% over four years versus bare plots.
Intervention effect Ridging reduced exchangeable acidity by 0.15 cmol(+)kg(-1).
Observation Millet grain yield under banded surface mulch stayed near 526 +/- 9 kg ha(-1), except in the severe drought year.
Observation Millet yield components compensated for each other depending on timing of abiotic stresses.
Intervention effect Cowpea productivity was consistently higher with buried than surface banded mulch.
Intervention effect Buried banded mulch failed to sustain millet yields.
Mechanism The authors attributed millet yield decline under buried mulch to greater cowpea nutrient uptake and faster acidification.

Mechanismobservedoriginal resultmeasured

Claim · model-written summary

Savanna fuel bulk density was lower, largely due to grasses.

Taxon: grassese0
Outcome: fuel bulk densitye0
Direction: lowere0
Qualifier: presence of grassese0

Verbatim

e0
“savanna was characterized by lower fuel bulk density, largely because of the presence of grasses”
✓ located verbatim in the source · abstract, characters 1183–1279

Title

Fuels or microclimate? Understanding the drivers of fire feedbacks at savanna–forest boundaries

WILLIAM A. HOFFMANN; SUSAN Y. JACONIS; KRISTEN L. MCKINLEY; et al. Austral Ecology 2011. doi:10.1111/j.1442-9993.2011.02324.x

Other claims from this paper (8)

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

FI was associated with increased soil bulk density.

Treatment: large amounts of water in FIe0
Outcome: increased soil bulk densitye0
Direction: increasede0

Not reportedTaxon

Verbatim

e0
“large amounts of water in FI would lead to increased soil bulk density and reduced soil temperature”
✓ located verbatim in the source · abstract, characters 1381–1480

Title

Soil nitrogen mineralisation dynamics under long-term different irrigation methods in greenhouses

Jinghong Ji; Yulong Zhang; Yulong Zhang; et al. Acta Agriculturae Scandinavica Section B - Soil & Plant Science 2014. doi:10.1080/09064710.2014.884157

Other claims from this paper (10)

Method / resource A first-order model predicted soil nitrogen mineralisation characteristics.
Observation Drip irrigation had the highest N0 in the upper soil layers, followed by furrow and subsurface irrigation.
Observation SI and DI had higher k values than FI except at 10 to 20 cm.
Observation FI had the highest t1/2, followed by DI and SI.
Mechanism FI was associated with reduced soil temperature.
Mechanism DI favored organic nitrogen mineralisation.
Mechanism SI led to nitrate accumulation in the upper soil.
Mechanism SI decreased pH in the upper soil.
Intervention effect DI increased the proportion of N0 to total soil nitrogen.
Recommendation DI gave the best soil fertility effect, followed by SI and FI.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Fescue reduced root biomass was attributed to high bulk density and low soil porosity.

Taxon: Fescuee0
Outcome: reduced root biomasse0
Qualifier: higher bulk density and lower soil porositye0

Verbatim

e0
“Fescue exhibited reduced root biomass due to higher bulk density and lower soil porosity”
✓ located verbatim in the source · abstract, characters 1004–1092

Title

Evaluation of forage resources under poorly drained soils for dairy systems

Gonzalo Berhongaray; María Josefina Massola; José Martín Jauregui; et al. Discover Soil. 2024. doi:10.1007/s44378-024-00018-z

Other claims from this paper (6)

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Dam inundation indirectly affected SMF through soil pH, bulk density and functional dispersion.

Outcome: indirect effectse0
Qualifier: soil pH, bulk density, and functional dispersione0

Not reportedTaxon

Verbatim

e0
“indirect effects mediated by soil pH, bulk density, and functional dispersion”
✓ located verbatim in the source · abstract, characters 1225–1302

Title

Dam Inundation Modulates the Effect of Plant Diversity on Soil Multifunctionality in the Riparian Zone of the Three Gorges Reservoir

Jie Zheng; Muhammad Arif; Wenqiu Cao; et al. Land Degradation and Development 2024. doi:10.1002/ldr.5317

Other claims from this paper (8)

Association Diversity metrics related to soil multifunctionality in positive and negative directions.
Association Most diversity metrics were negatively correlated with SMF.
Association Alpha and beta diversity contributed equally to SMF.
Association Functional diversity explained SMF better than taxonomic diversity.
Association Functional diversity explained SMF better than phylogenetic diversity.
Association Abiotic variables explained 24% of SMF variance.
Association Biotic variables explained 3% of SMF variance.
Association Dam inundation directly affected SMF.

Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Reduced soil bulk density enhanced soil moisture content.

Outcome: soil moisture contente0
Direction: enhancede0
Qualifier: reduction in soil bulk densitye0

Not reportedTaxon

Verbatim

e0
“significant reduction in soil bulk density from 1.46 (in the first year) to 1.32 (in the third year), which enhanced soil moisture content”
✓ located verbatim in the source · abstract, characters 1178–1316

Title

Effects of runoff harvesting through semi-circular bund on some soil characteristics

Mosayeb Heshmati; Mohammad Gheitury; M. Hosseini DOAJ (DOAJ: Directory of Open Access Journals) 2018. doi:10.22034/gjesm.2018.04.02.008

Other claims from this paper (5)

Intervention effect Soil organic carbon did not significantly differ among four treatments in year one.
Intervention effect Soil organic carbon increased in bund with protection and protection treatments after three years, with inconsistent reported significance notation.
Intervention effect Bund with protection significantly increased coarse and very coarse soil aggregates.
Intervention effect Bund with protection reduced soil bulk density from 1.46 to 1.32 by year three.
Intervention effect Bunds with protection significantly curtailed forest stand dieback and adverse regrowth.

Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors infer reduced field soil bulk density helps black walnut growth.

Taxon: black walnutJuglans nigrae0
Outcome: growth of black walnute0
Qualifier: reduction of field soil bulk densitye0

Verbatim

e0
“Apparently the reduction of field soil bulk density is important in increasing the growth of black walnut.”
✓ located verbatim in the source · abstract, characters 1110–1216

Title

Influence of soil mixing and sterilization on growth and nutrient uptake of black walnut seedlings

Felix Ponder Communications in Soil Science and Plant Analysis 1981. doi:10.1080/00103628109367202

Other claims from this paper (7)

Observation Forest soil had higher concentrations of tested elements other than Mg than field soil.
Intervention effect Disturbance raised P, K, Ca, Mg and Mn in both soils, except Ca in field soil.
Intervention effect Autoclaving yielded higher extractable nutrient amounts among variable sterilization effects.
Intervention effect Disturbed soil raised foliar N, P and Ca compared with other treatments.
Intervention effect Seedling nutrient concentrations were usually higher after autoclaving than fumigation.
Intervention effect Soil disturbance increased seedling height growth in field soil.
Intervention effect Soil disturbance did not increase seedling height growth in forest soil.

Mechanismauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

Mechanical impedance or increased soil strength with rising bulk density is proposed to reduce seedling emergence.

Taxon: upland riceOryza sativat0
Outcome: seedling emergencee4
Qualifier: mechanical impedance or the increased soil strength with increasing bulk densitiese4

Verbatim

t0
“Effect of Bulk Density and Seed Placement on Upland Rice Seedling Emergence”
✓ located verbatim in the source · title, characters 0–75

e4
“It seems that the mechanical impedance or the increased soil strength with increasing bulk densities affected seedling emergence adversely”
✓ located verbatim in the source · abstract, characters 815–953

Title

Effect of Bulk Density and Seed Placement on Upland Rice Seedling Emergence

S. B. Varade; B. P. Ghildyal Agronomy Journal 1968. doi:10.2134/agronj1968.00021962006000020029x

Other claims from this paper (4)

Intervention effect At 1.6 g/cc bulk density and depths down to 8 cm, lower densities and pressures did not limit seedling emergence when moisture was above field capacity.
Intervention effect Seed placement depths beyond 8 cm seem to limit seedling emergence at these bulk densities.
Intervention effect Seed placement below 5 cm seems to limit seedling emergence at 1.7 and 1.8 g/cc bulk densities.
Intervention effect A pressure of 2.8 hg/cm2 at 10 cm depth stopped seedling emergence completely.

“bulk density”

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