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“yield decrease”

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paper W4395701435 ✕

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Weed-associated yield loss was 2.51 c/ha (1%) in second-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: 2.51 c/ha (1%)e0 e1 e2 e3 t0

Verbatim

e0
“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

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 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 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

Weed-associated yield loss was 15.75 c/ha (5.3%) in 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: 15.75 c/ha (5.3%)e0 e1 e2 e3 t0
Qualifier: raw phytomass of weedse0 e1 e2 e3 t0

Verbatim

e0
“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

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 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 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 0.07 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.

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