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“decrease in density”

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Taxon: spring barley ✕

Taxon groups are the verbatim names found in the abstracts (case-insensitive), not normalised: maize, corn and Zea mays are separate groups here. The Organism view merges them through NCBI Taxonomy.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher sowing density decreased grain number per spike.

Taxon: spring barleyHordeum vulgaret0
Treatment: higher sowing densitye0
Outcome: grain number per spikee0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“the higher sowing density brought about a decrease in the grain number per spike”
✓ located verbatim in the source · abstract, characters 584–664

t0
“spring barley”
✓ located verbatim in the source · title, characters 38–51

Title

Genotype variations in grain yield of spring barley depending on sowing density

Aleksandar Paunovic; Desimir Knezevic; Milomirka Madic Genetika 2006. doi:10.2298/gensr0602107k

Other claims from this paper (4)

Observation Cultivars differed highly significantly in grain number per spike.
Observation Cultivars differed highly significantly in grain yield.
Intervention effect Increasing sowing density increased spike number in every research year.
Intervention effect Increasing sowing density increased grain yield in every research year.

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 resultnegativemeasured

Claim · model-written summary

Increasing crop density decreased grain bulk density in both years.

Taxon: spring barleyHordeum vulgaret0
Treatment: Increasing crop densitye0
Outcome: grain bulk density (kg hl−1)e0
Direction: decreasee0
Qualifier: both yearse0

Not reportedComparator

Verbatim

t0
“spring barley”
✓ located verbatim in the source · title, characters 133–146

e0
“Increasing crop density caused a decrease in grain bulk density (kg hl−1) both years”
✓ located verbatim in the source · abstract, characters 1241–1325

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, McCollough Rose Zenodo (CERN European Organization for Nuclear Research) 2022. doi:10.5281/zenodo.7817431

Other claims from this paper (11)

Intervention effect Increasing barley density increased reduction in intrarow surrogate weed biomass from 49% to 82%.
Intervention effect Increasing barley density increased reduction in ambient weed biomass from 53% to 99%.
Intervention effect Increasing crop density decreased grain protein in one year.
Intervention effect Increasing crop density decreased thousand-kernel weight in one year.
Intervention effect Row spacing did not affect intrarow weeds.
Intervention effect Barley yield was 7% to 8% lower at 20 cm than at 15 cm row spacing.
Intervention effect Increasing crop density did not affect barley yield.
Intervention effect In one year harrowing reduced surrogate and ambient weed biomass.
Intervention effect In one year harrowing increased 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 resultnegativemeasured

Claim · model-written summary

Increasing crop density decreased grain protein in one year.

Taxon: spring barleyHordeum vulgaret0
Treatment: Increasing crop densitye0
Outcome: grain protein (%)e0
Direction: decreasee0
Qualifier: in one yeare0

Not reportedComparator

Verbatim

t0
“spring barley”
✓ located verbatim in the source · title, characters 133–146

e0
“Increasing crop density caused a decrease in grain bulk density (kg hl−1) both years, and grain protein (%) and 1,000-kernel weight (g) in one year”
✓ located verbatim in the source · abstract, characters 1241–1388

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, McCollough Rose Zenodo (CERN European Organization for Nuclear Research) 2022. doi:10.5281/zenodo.7817431

Other claims from this paper (11)

Intervention effect Increasing barley density increased reduction in intrarow surrogate weed biomass from 49% to 82%.
Intervention effect Increasing barley density increased reduction in ambient weed biomass from 53% to 99%.
Intervention effect Increasing crop density decreased grain bulk density in both years.
Intervention effect Increasing crop density decreased thousand-kernel weight in one year.
Intervention effect Row spacing did not affect intrarow weeds.
Intervention effect Barley yield was 7% to 8% lower at 20 cm than at 15 cm row spacing.
Intervention effect Increasing crop density did not affect barley yield.
Intervention effect In one year harrowing reduced surrogate and ambient weed biomass.
Intervention effect In one year harrowing increased 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 resultnegativemeasured

Claim · model-written summary

Increasing crop density decreased thousand-kernel weight in one year.

Taxon: spring barleyHordeum vulgaret0
Treatment: Increasing crop densitye0
Outcome: 1,000-kernel weight (g)e0
Direction: decreasee0
Qualifier: in one yeare0

Not reportedComparator

Verbatim

t0
“spring barley”
✓ located verbatim in the source · title, characters 133–146

e0
“Increasing crop density caused a decrease in grain bulk density (kg hl−1) both years, and grain protein (%) and 1,000-kernel weight (g) in one year”
✓ located verbatim in the source · abstract, characters 1241–1388

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, McCollough Rose Zenodo (CERN European Organization for Nuclear Research) 2022. doi:10.5281/zenodo.7817431

Other claims from this paper (11)

Intervention effect Increasing barley density increased reduction in intrarow surrogate weed biomass from 49% to 82%.
Intervention effect Increasing barley density increased reduction in ambient weed biomass from 53% to 99%.
Intervention effect Increasing crop density decreased grain bulk density in both years.
Intervention effect Increasing crop density decreased grain protein in one year.
Intervention effect Row spacing did not affect intrarow weeds.
Intervention effect Barley yield was 7% to 8% lower at 20 cm than at 15 cm row spacing.
Intervention effect Increasing crop density did not affect barley yield.
Intervention effect In one year harrowing reduced surrogate and ambient weed biomass.
Intervention effect In one year harrowing increased 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

Cover cropping tended to reduce soil bulk density.

Taxon: spring barleyHordeum vulgaree0
Treatment: cover crope1
Outcome: soil bulk densitye1
Direction: decreasee1
Qualifier: tended toe1

Not reportedComparator

Verbatim

e0
“spring barley (Hordeum vulgare L.)”
✓ located verbatim in the source · abstract, characters 438–472

e1
“The establishment of cover crop has resulted in a significantly higher soil microporosity and lower mesoporosity as well as tended to decrease the soil bulk density”
✓ located verbatim in the source · abstract, characters 1075–1239

Title

Response of spring barley root and soil physical properties to changes under cover crop and different tillage

Agnė Veršulienė; Gražina Kadžienė; Mykola Kochiieru; et al. Zemdirbyste-Agriculture 2022. doi:10.13080/z-a.2022.109.037

Other claims from this paper (10)

Intervention effect Ploughing yielded significantly higher topsoil total porosity and microporosity.
Intervention effect Direct drilling produced significantly higher soil bulk density.
Intervention effect Direct drilling lowered soil total porosity and microporosity.
Intervention effect Direct drilling did not change meso- and microporosity.
Intervention effect Cover cropping significantly increased soil microporosity.
Intervention effect Cover cropping reduced soil mesoporosity.
Intervention effect Cover cropping tended to increase barley root diameter and volume across tillage treatments in the 5-20 cm layer.
Association Barley root length and volume correlated positively with soil total porosity.
Association Barley root parameters correlated negatively with bulk density.
Association Cover crop and tillage interacted significantly for soil bulk density and root diameter.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Increasing crop density decreased grain protein and 1,000-kernel weight in one year.

Taxon: spring barleyHordeum vulgaree0
Treatment: Increasing crop densitye1
Outcome: grain protein (%) and 1,000-kernel weight (g)e2
Direction: decreasee1
Qualifier: in one yeare2

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

e2
“grain protein (%) and 1,000-kernel weight (g) in one year”
✓ located verbatim in the source · abstract, characters 1349–1406

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 bulk density in spring barley in both years.
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 resultnegativemeasured

Claim · model-written summary

High compaction lowered intensive barley grain yield by 25%.

Taxon: spring barleyHordeum vulgaree0
Material: intensive varietye0
Treatment: high (1.4 g/cm3) level of compactione1
Outcome: yield of spring barley graine0
Direction: decreasee0
Value: 25e0
Comparator: low (1.0 g/cm3) levele1

Verbatim

e0
“a decrease in the yield of spring barley grain was revealed: intensive variety — by 25”
✓ located verbatim in the source · abstract, characters 1574–1660

t0
“spring barley varieties”
✓ located verbatim in the source · title, characters 102–125

e1
“In the course of field research, a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties; phosphorus — by 3.4 and 4.7%; potassium — by 10.7 and 6.3%, respectively, at a high (1.4 g/cm3) level of compaction compared to its low (1.0 g/cm3) level. Under the same conditions, a decrease in the yield of spring barley grain was revealed: intensi…” Show full quote
✓ located verbatim in the source · abstract, characters 1222–1686

Title

Influence of structural density and soil moisture on the productivity of intensive and semi-intensive spring barley varieties

K. Uvarenko Visnyk agrarnoi nauky 2021. doi:10.31073/agrovisnyk202101-10

Other claims from this paper (10)

Intervention effect At 1.2 g/cm3 and 80% LMC, barley germination, development and biomass improved relative to compacted soil.
Observation Vzirets attained maximum biomass at 1.2 g/cm3 and 100% LMC with 90 kg/ha NPK fertilizer.
Observation Zdobutok attained maximum biomass at 1.2 g/cm3 and 80% LMC with the stated NP and K rates.
Intervention effect High compaction reduced soil nitrogen use by 4.0% in intensive barley.
Intervention effect High compaction reduced soil nitrogen use by 2.0% in semi-intensive barley.
Intervention effect High compaction reduced phosphorus use by 3.4% in intensive barley.
Intervention effect High compaction reduced phosphorus use by 4.7% in semi-intensive barley.
Intervention effect High compaction reduced potassium use by 10.7% in intensive barley.
Intervention effect High compaction reduced potassium use by 6.3% in semi-intensive barley.
Intervention effect High compaction lowered semi-intensive barley grain yield by 22%.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High compaction reduced soil nitrogen use by 4.0% in intensive barley.

Taxon: spring barleyHordeum vulgaret0
Material: intensivee0
Treatment: high (1.4 g/cm3) level of compactione1
Outcome: use of nutrients from the soile0
Direction: decreasee0
Value: 4.0%e0
Comparator: low (1.0 g/cm3) levele1

Verbatim

e0
“a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive”
✓ located verbatim in the source · abstract, characters 1255–1350

t0
“spring barley varieties”
✓ located verbatim in the source · title, characters 102–125

e1
“In the course of field research, a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties; phosphorus — by 3.4 and 4.7%; potassium — by 10.7 and 6.3%, respectively, at a high (1.4 g/cm3) level of compaction compared to its low (1.0 g/cm3) level. Under the same conditions, a decrease in the yield of spring barley grain was revealed: intensi…” Show full quote
✓ located verbatim in the source · abstract, characters 1222–1686

Title

Influence of structural density and soil moisture on the productivity of intensive and semi-intensive spring barley varieties

K. Uvarenko Visnyk agrarnoi nauky 2021. doi:10.31073/agrovisnyk202101-10

Other claims from this paper (10)

Intervention effect At 1.2 g/cm3 and 80% LMC, barley germination, development and biomass improved relative to compacted soil.
Observation Vzirets attained maximum biomass at 1.2 g/cm3 and 100% LMC with 90 kg/ha NPK fertilizer.
Observation Zdobutok attained maximum biomass at 1.2 g/cm3 and 80% LMC with the stated NP and K rates.
Intervention effect High compaction reduced soil nitrogen use by 2.0% in semi-intensive barley.
Intervention effect High compaction reduced phosphorus use by 3.4% in intensive barley.
Intervention effect High compaction reduced phosphorus use by 4.7% in semi-intensive barley.
Intervention effect High compaction reduced potassium use by 10.7% in intensive barley.
Intervention effect High compaction reduced potassium use by 6.3% in semi-intensive barley.
Intervention effect High compaction lowered intensive barley grain yield by 25%.
Intervention effect High compaction lowered semi-intensive barley grain yield by 22%.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High compaction reduced phosphorus use by 3.4% in intensive barley.

Taxon: spring barleyHordeum vulgaret0
Material: intensivee1
Treatment: high (1.4 g/cm3) level of compactione1
Outcome: phosphoruse0
Direction: decreasee1
Value: 3.4e0
Comparator: low (1.0 g/cm3) levele1

Verbatim

e0
“phosphorus — by 3.4 and 4.7%”
✓ located verbatim in the source · abstract, characters 1392–1420

t0
“spring barley varieties”
✓ located verbatim in the source · title, characters 102–125

e1
“In the course of field research, a decrease in the use of nutrients from the soil was revealed: nitrogen by 4.0% — for intensive and 2.0% — for semi-intensive varieties; phosphorus — by 3.4 and 4.7%; potassium — by 10.7 and 6.3%, respectively, at a high (1.4 g/cm3) level of compaction compared to its low (1.0 g/cm3) level. Under the same conditions, a decrease in the yield of spring barley grain was revealed: intensi…” Show full quote
✓ located verbatim in the source · abstract, characters 1222–1686

Title

Influence of structural density and soil moisture on the productivity of intensive and semi-intensive spring barley varieties

K. Uvarenko Visnyk agrarnoi nauky 2021. doi:10.31073/agrovisnyk202101-10

Other claims from this paper (10)

Intervention effect At 1.2 g/cm3 and 80% LMC, barley germination, development and biomass improved relative to compacted soil.
Observation Vzirets attained maximum biomass at 1.2 g/cm3 and 100% LMC with 90 kg/ha NPK fertilizer.
Observation Zdobutok attained maximum biomass at 1.2 g/cm3 and 80% LMC with the stated NP and K rates.
Intervention effect High compaction reduced soil nitrogen use by 4.0% in intensive barley.
Intervention effect High compaction reduced soil nitrogen use by 2.0% in semi-intensive barley.
Intervention effect High compaction reduced phosphorus use by 4.7% in semi-intensive barley.
Intervention effect High compaction reduced potassium use by 10.7% in intensive barley.
Intervention effect High compaction reduced potassium use by 6.3% in semi-intensive barley.
Intervention effect High compaction lowered intensive barley grain yield by 25%.
Intervention effect High compaction lowered semi-intensive barley grain yield by 22%.

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“decrease in density”

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