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“yield decrease”

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paper W4395701435 ✕

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Yield loss per unit weed biomass was 0.07 c/ha (0.03%) for second-year grasses.

Taxon: perennial grassese0 e1 e2 e3 t0
Outcome: yield lossese0 e1 e2 e3 t0
Direction: lossese0 e1 e2 e3 t0
Value: 0.07 c/ha (0.03%)e0 e1 e2 e3 t0

Verbatim

e0
“including from 1 g/m2 at the time of mowing 0.150 c/ha (0.05%) and 0.07 c/ha (0.03%)”
✓ located verbatim in the source · abstract, characters 1141–1225

e1
“Yield losses from the total value of the raw phytomass of weeds amounted to 15.75 c/ha (5.3%) and 2.51 c/ha (1%)”
✓ located verbatim in the source · abstract, characters 1027–1139

e2
“Under the influence of mineral fertilizers, the hazard coefficients decreased by 2.6 and 5.7 times”
✓ located verbatim in the source · abstract, characters 1568–1666

e3
“The introduction of high doses of mineral fertilizers and the use of herbicides in the integrated crop protection system of grain-grass-row crop rotation led to a decrease in the harmfulness of weeds.”
✓ located verbatim in the source · abstract, characters 1227–1427

t0
“perennial grasses”
✓ located verbatim in the source · title, characters 43–60

Title

The harmfulness of weeds in the herbage of perennial grasses in the north-west of the Russian Federation

A. M. Shpanev Agrarian science 2024. doi:10.32634/0869-8155-2024-381-4-85-88

Other claims from this paper (15)

Observation Weeds harmed first-year perennial grasses 6.3 times more than second-year grasses.
Observation Weed-associated yield loss was 15.75 c/ha (5.3%) in first-year grasses.
Observation Weed-associated yield loss was 2.51 c/ha (1%) in second-year grasses.
Observation Yield loss per unit weed biomass was 0.150 c/ha (0.05%) for first-year grasses.
Intervention effect High mineral fertilizer doses reduced weed harmfulness.
Intervention effect Herbicide use reduced weed harmfulness.
Observation Treatment effects were stronger in second-year grasses.
Intervention effect Mineral fertilizers reduced hazard coefficients 2.6 times in first-year grasses.
Intervention effect Mineral fertilizers reduced hazard coefficients 5.7 times in second-year grasses.
Intervention effect Protective measures reduced hazard coefficients 1.4 times in first-year grasses.
Intervention effect Protective measures reduced hazard coefficients 4.2 times in second-year grasses.
Intervention effect Mineral fertilizers reduced green mass yield losses 2.6 times in first-year grasses.
Intervention effect Mineral fertilizers reduced green mass yield losses 10.7 times in second-year grasses.
Intervention effect Protective measures reduced green mass yield losses 1.9 times in first-year grasses.
Intervention effect Protective measures reduced green mass yield losses 8.9 times in second-year grasses.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Yield loss per unit weed biomass was 0.150 c/ha (0.05%) for first-year grasses.

Taxon: perennial grassese0 e1 e2 e3 t0
Interactor: weedse0 e1 e2 e3 t0weed
Outcome: yield lossese0 e1 e2 e3 t0
Direction: lossese0 e1 e2 e3 t0
Value: 0.150 c/ha (0.05%)e0 e1 e2 e3 t0
Qualifier: 1 g/m2 at the time of mowinge0 e1 e2 e3 t0

Verbatim

e0
“including from 1 g/m2 at the time of mowing 0.150 c/ha (0.05%) and 0.07 c/ha (0.03%)”
✓ located verbatim in the source · abstract, characters 1141–1225

e1
“Yield losses from the total value of the raw phytomass of weeds amounted to 15.75 c/ha (5.3%) and 2.51 c/ha (1%)”
✓ located verbatim in the source · abstract, characters 1027–1139

e2
“Under the influence of mineral fertilizers, the hazard coefficients decreased by 2.6 and 5.7 times”
✓ located verbatim in the source · abstract, characters 1568–1666

e3
“The introduction of high doses of mineral fertilizers and the use of herbicides in the integrated crop protection system of grain-grass-row crop rotation led to a decrease in the harmfulness of weeds.”
✓ located verbatim in the source · abstract, characters 1227–1427

t0
“perennial grasses”
✓ located verbatim in the source · title, characters 43–60

Title

The harmfulness of weeds in the herbage of perennial grasses in the north-west of the Russian Federation

A. M. Shpanev Agrarian science 2024. doi:10.32634/0869-8155-2024-381-4-85-88

Other claims from this paper (15)

Observation Weeds harmed first-year perennial grasses 6.3 times more than second-year grasses.
Observation Weed-associated yield loss was 15.75 c/ha (5.3%) in first-year grasses.
Observation Weed-associated yield loss was 2.51 c/ha (1%) in second-year grasses.
Observation Yield loss per unit weed biomass was 0.07 c/ha (0.03%) for second-year grasses.
Intervention effect High mineral fertilizer doses reduced weed harmfulness.
Intervention effect Herbicide use reduced weed harmfulness.
Observation Treatment effects were stronger in second-year grasses.
Intervention effect Mineral fertilizers reduced hazard coefficients 2.6 times in first-year grasses.
Intervention effect Mineral fertilizers reduced hazard coefficients 5.7 times in second-year grasses.
Intervention effect Protective measures reduced hazard coefficients 1.4 times in first-year grasses.
Intervention effect Protective measures reduced hazard coefficients 4.2 times in second-year grasses.
Intervention effect Mineral fertilizers reduced green mass yield losses 2.6 times in first-year grasses.
Intervention effect Mineral fertilizers reduced green mass yield losses 10.7 times in second-year grasses.
Intervention effect Protective measures reduced green mass yield losses 1.9 times in first-year grasses.
Intervention effect Protective measures reduced green mass yield losses 8.9 times in second-year grasses.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mineral fertilizers reduced hazard coefficients 5.7 times in second-year grasses.

Taxon: perennial grassese0 e1 e2 e3 t0
Treatment: mineral fertilizerse0 e1 e2 e3 t0
Outcome: hazard coefficientse0 e1 e2 e3 t0
Direction: decreasede0 e1 e2 e3 t0
Value: 5.7 timese0 e1 e2 e3 t0

Not reportedComparator

Verbatim

e0
“Under the influence of mineral fertilizers, the hazard coefficients decreased by 2.6 and 5.7 times”
✓ located verbatim in the source · abstract, characters 1568–1666

e1
“Yield losses from the total value of the raw phytomass of weeds amounted to 15.75 c/ha (5.3%) and 2.51 c/ha (1%)”
✓ located verbatim in the source · abstract, characters 1027–1139

e2
“Under the influence of mineral fertilizers, the hazard coefficients decreased by 2.6 and 5.7 times”
✓ located verbatim in the source · abstract, characters 1568–1666

e3
“The introduction of high doses of mineral fertilizers and the use of herbicides in the integrated crop protection system of grain-grass-row crop rotation led to a decrease in the harmfulness of weeds.”
✓ located verbatim in the source · abstract, characters 1227–1427

t0
“perennial grasses”
✓ located verbatim in the source · title, characters 43–60

Title

The harmfulness of weeds in the herbage of perennial grasses in the north-west of the Russian Federation

A. M. Shpanev Agrarian science 2024. doi:10.32634/0869-8155-2024-381-4-85-88

Other claims from this paper (15)

Observation Weeds harmed first-year perennial grasses 6.3 times more than second-year grasses.
Observation Weed-associated yield loss was 15.75 c/ha (5.3%) in first-year grasses.
Observation Weed-associated yield loss was 2.51 c/ha (1%) in second-year grasses.
Observation Yield loss per unit weed biomass was 0.150 c/ha (0.05%) for first-year grasses.
Observation Yield loss per unit weed biomass was 0.07 c/ha (0.03%) for second-year grasses.
Intervention effect High mineral fertilizer doses reduced weed harmfulness.
Intervention effect Herbicide use reduced weed harmfulness.
Observation Treatment effects were stronger in second-year grasses.
Intervention effect Mineral fertilizers reduced hazard coefficients 2.6 times in first-year grasses.
Intervention effect Protective measures reduced hazard coefficients 1.4 times in first-year grasses.
Intervention effect Protective measures reduced hazard coefficients 4.2 times in second-year grasses.
Intervention effect Mineral fertilizers reduced green mass yield losses 2.6 times in first-year grasses.
Intervention effect Mineral fertilizers reduced green mass yield losses 10.7 times in second-year grasses.
Intervention effect Protective measures reduced green mass yield losses 1.9 times in first-year grasses.
Intervention effect Protective measures reduced green mass yield losses 8.9 times in second-year grasses.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mineral fertilizers reduced hazard coefficients 2.6 times in first-year grasses.

Taxon: perennial grassese0 e1 e2 e3 t0
Treatment: mineral fertilizerse0 e1 e2 e3 t0
Interactor: weedse0 e1 e2 e3 t0weed
Outcome: hazard coefficientse0 e1 e2 e3 t0
Direction: decreasede0 e1 e2 e3 t0
Value: 2.6e0 e1 e2 e3 t0

Not reportedComparator

Verbatim

e0
“Under the influence of mineral fertilizers, the hazard coefficients decreased by 2.6 and 5.7 times”
✓ located verbatim in the source · abstract, characters 1568–1666

e1
“Yield losses from the total value of the raw phytomass of weeds amounted to 15.75 c/ha (5.3%) and 2.51 c/ha (1%)”
✓ located verbatim in the source · abstract, characters 1027–1139

e2
“Under the influence of mineral fertilizers, the hazard coefficients decreased by 2.6 and 5.7 times”
✓ located verbatim in the source · abstract, characters 1568–1666

e3
“The introduction of high doses of mineral fertilizers and the use of herbicides in the integrated crop protection system of grain-grass-row crop rotation led to a decrease in the harmfulness of weeds.”
✓ located verbatim in the source · abstract, characters 1227–1427

t0
“perennial grasses”
✓ located verbatim in the source · title, characters 43–60

Title

The harmfulness of weeds in the herbage of perennial grasses in the north-west of the Russian Federation

A. M. Shpanev Agrarian science 2024. doi:10.32634/0869-8155-2024-381-4-85-88

Other claims from this paper (15)

Observation Weeds harmed first-year perennial grasses 6.3 times more than second-year grasses.
Observation Weed-associated yield loss was 15.75 c/ha (5.3%) in first-year grasses.
Observation Weed-associated yield loss was 2.51 c/ha (1%) in second-year grasses.
Observation Yield loss per unit weed biomass was 0.150 c/ha (0.05%) for first-year grasses.
Observation Yield loss per unit weed biomass was 0.07 c/ha (0.03%) for second-year grasses.
Intervention effect High mineral fertilizer doses reduced weed harmfulness.
Intervention effect Herbicide use reduced weed harmfulness.
Observation Treatment effects were stronger in second-year grasses.
Intervention effect Mineral fertilizers reduced hazard coefficients 5.7 times in second-year grasses.
Intervention effect Protective measures reduced hazard coefficients 1.4 times in first-year grasses.
Intervention effect Protective measures reduced hazard coefficients 4.2 times in second-year grasses.
Intervention effect Mineral fertilizers reduced green mass yield losses 2.6 times in first-year grasses.
Intervention effect Mineral fertilizers reduced green mass yield losses 10.7 times in second-year grasses.
Intervention effect Protective measures reduced green mass yield losses 1.9 times in first-year grasses.
Intervention effect Protective measures reduced green mass yield losses 8.9 times in second-year grasses.

Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Treatment effects were stronger in second-year grasses.

Taxon: perennial grassese0 e1 e2 e3 t0
Outcome: identified effectse0 e1 e2 e3 t0
Direction: more pronouncede0 e1 e2 e3 t0
Comparator: herbs of the 1st yeare0 e1 e2 e3 t0

Verbatim

e0
“In the perennial herbs of the 2nd year of use, the identified effects were significantly more pronounced than in the herbs of the 1st year.”
✓ located verbatim in the source · abstract, characters 1428–1567

e1
“Yield losses from the total value of the raw phytomass of weeds amounted to 15.75 c/ha (5.3%) and 2.51 c/ha (1%)”
✓ located verbatim in the source · abstract, characters 1027–1139

e2
“Under the influence of mineral fertilizers, the hazard coefficients decreased by 2.6 and 5.7 times”
✓ located verbatim in the source · abstract, characters 1568–1666

e3
“The introduction of high doses of mineral fertilizers and the use of herbicides in the integrated crop protection system of grain-grass-row crop rotation led to a decrease in the harmfulness of weeds.”
✓ located verbatim in the source · abstract, characters 1227–1427

t0
“perennial grasses”
✓ located verbatim in the source · title, characters 43–60

Title

The harmfulness of weeds in the herbage of perennial grasses in the north-west of the Russian Federation

A. M. Shpanev Agrarian science 2024. doi:10.32634/0869-8155-2024-381-4-85-88

Other claims from this paper (15)

Observation Weeds harmed first-year perennial grasses 6.3 times more than second-year grasses.
Observation Weed-associated yield loss was 15.75 c/ha (5.3%) in first-year grasses.
Observation Weed-associated yield loss was 2.51 c/ha (1%) in second-year grasses.
Observation Yield loss per unit weed biomass was 0.150 c/ha (0.05%) for first-year grasses.
Observation Yield loss per unit weed biomass was 0.07 c/ha (0.03%) for second-year grasses.
Intervention effect High mineral fertilizer doses reduced weed harmfulness.
Intervention effect Herbicide use reduced weed harmfulness.
Intervention effect Mineral fertilizers reduced hazard coefficients 2.6 times in first-year grasses.
Intervention effect Mineral fertilizers reduced hazard coefficients 5.7 times in second-year grasses.
Intervention effect Protective measures reduced hazard coefficients 1.4 times in first-year grasses.
Intervention effect Protective measures reduced hazard coefficients 4.2 times in second-year grasses.
Intervention effect Mineral fertilizers reduced green mass yield losses 2.6 times in first-year grasses.
Intervention effect Mineral fertilizers reduced green mass yield losses 10.7 times in second-year grasses.
Intervention effect Protective measures reduced green mass yield losses 1.9 times in first-year grasses.
Intervention effect Protective measures reduced green mass yield losses 8.9 times in second-year grasses.

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