Abstract
The research findings obtained on the educational and experimental field of Omsk State Agricultural University from 2020 through 2024 are discussed. The soil of the experimental plot was meadow-chernozem, medium-deep, low-humus, and medium-loamy. The Santana pea variety was sown at a rate of 1 million viable seeds per hectare. The experiments were established against two backgrounds: without fertilizers and with the application of ammonium phosphate fertilizer (N12P52) locally at sowing. The treatment of crops with the herbicide Germes, oil dispersion, (0.8 L ha) was performed at stage of the second pair of true leaves, and then in 5 and 10 days after the first treatment. The spraying fluid consumption was 200 L ha. The experiment was replicated four times; the plot area was 60 m2. Four out of five years of research were droughty, and in 2024 only, the hydrothermal coefficient was equal to 1.67. The research findings showed that with time displacement of pea crop herbicide treatment, the survival rate and yields of pea grain decreased, and the proportion of weeds in the agrophytocenosis, on the contrary, increased. The survival rate of pea plants fluctuated by years from 59.0 to 62.0% after the first treatment of pea crops and gradually decreased after subsequent treatments in 5 and 10 days. The proportion of weeds at treatment at stage of the second pair of true leaves was 6.49 and 6.98% depending on the fertilization background and increased to 7.09 and 7.42% at treatment in 10 days. The yield of pea grain against unfertilized background at the first treatment with herbicide was 3.28 t ha and decreased after later treatments to 3.20-3.03 t ha. The application of ammonium phosphate fertilizer increased grain yield by 0.10-0.17 t ha.
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Claims 9
Claim · model-written summary
Delaying herbicide treatment of pea decreased pea survival rate and grain yield.
- Taxon
- pea
Lathyrus oleraceust0 - Treatment
- time displacement of pea crop herbicide treatmente1
- Outcome
- the survival rate and yields of pea graine1
- Direction
- decreasede1
- Setting
- southern forest-steppe of the Omsk Regiont0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“with time displacement of pea crop herbicide treatment, the survival rate and yields of pea grain decreased”
t0“pea crops of the Santana variety in the southern forest-steppe of the Omsk Region”
Claim · model-written summary
Delaying herbicide treatment of pea increased the proportion of weeds in the agrophytocenosis.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- time displacement of pea crop herbicide treatmente1
- Interactor
- weedse2weed
- Outcome
- the proportion of weeds in the agrophytocenosise2
- Direction
- increasede2
- Setting
- southern forest-steppe of the Omsk Regiont0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“with time displacement of pea crop herbicide treatment, the survival rate and yields of pea grain decreased”
e2“the proportion of weeds in the agrophytocenosis, on the contrary, increased”
t0“pea crops of the Santana variety in the southern forest-steppe of the Omsk Region”
Claim · model-written summary
Pea survival rate fluctuated by years from 59.0 to 62.0% after the first herbicide treatment.
- Taxon
- peaLathyrus oleraceust0
- Outcome
- survival rate of pea plantse3
- Value
- 59.0 to 62.0%e3
- Qualifier
- fluctuated by yearse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The survival rate of pea plants fluctuated by years from 59.0 to 62.0% after the first treatment of pea crops”
t0“pea crops of the Santana variety in the southern forest-steppe of the Omsk Region”
Claim · model-written summary
Pea survival rate gradually decreased after herbicide treatments repeated at 5 and 10 days after the first treatment.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- subsequent treatments in 5 and 10 dayse4
- Outcome
- survival rate of pea plantse3
- Direction
- gradually decreasede4
- Comparator
- first treatmente3
- Setting
- southern forest-steppe of the Omsk Regiont0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The survival rate of pea plants fluctuated by years from 59.0 to 62.0% after the first treatment of pea crops”
e4“gradually decreased after subsequent treatments in 5 and 10 days”
t0“pea crops of the Santana variety in the southern forest-steppe of the Omsk Region”
Claim · model-written summary
At treatment at the second pair of true leaves, the proportion of weeds was 6.49 and 6.98%, depending on fertilization.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- treatment at stage of the second pair of true leavese5
- Interactor
- weedse5weed
- Outcome
- proportion of weedse5
- Value
- 6.49 and 6.98%e5
- Qualifier
- depending on the fertilization backgrounde5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The proportion of weeds at treatment at stage of the second pair of true leaves was 6.49 and 6.98% depending on the fertilization background”
t0“pea crops of the Santana variety in the southern forest-steppe of the Omsk Region”
Claim · model-written summary
Weed proportion increased to 7.09 and 7.42% when herbicide was applied 10 days later than at the second pair of true leaves.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- treatment in 10 dayse6
- Interactor
- weedse5weed
- Outcome
- proportion of weedse5
- Direction
- increasede6
- Value
- 7.09 and 7.42%e6
- Comparator
- treatment at stage of the second pair of true leavese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The proportion of weeds at treatment at stage of the second pair of true leaves was 6.49 and 6.98% depending on the fertilization background”
e6“increased to 7.09 and 7.42% at treatment in 10 days”
t0“pea crops of the Santana variety in the southern forest-steppe of the Omsk Region”
Claim · model-written summary
Pea grain yield at the first herbicide treatment on unfertilized background was 3.28 t/ha.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- first treatment with herbicidee7
- Outcome
- yield of pea graine7
- Value
- 3.28 t hae7
- Qualifier
- against unfertilized backgrounde7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“The yield of pea grain against unfertilized background at the first treatment with herbicide was 3.28 t ha”
t0“pea crops of the Santana variety in the southern forest-steppe of the Omsk Region”
Claim · model-written summary
Pea grain yield decreased to 3.20-3.03 t/ha after later herbicide treatments.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- later treatmentse6
- Outcome
- yield of pea graine7
- Direction
- decreasede6
- Value
- 3.20-3.03 t hae6
- Comparator
- first treatment with herbicidee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“The yield of pea grain against unfertilized background at the first treatment with herbicide was 3.28 t ha”
e6“decreased after later treatments to 3.20-3.03 t ha”
t0“pea crops of the Santana variety in the southern forest-steppe of the Omsk Region”
Claim · model-written summary
Ammonium phosphate fertilizer increased pea grain yield by 0.10-0.17 t/ha compared with unfertilized background.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- application of ammonium phosphate fertilizere6
- Outcome
- grain yielde6
- Direction
- increasede6
- Value
- 0.10-0.17 t hae6
- Comparator
- unfertilized backgrounde7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“The yield of pea grain against unfertilized background at the first treatment with herbicide was 3.28 t ha”
e6“The application of ammonium phosphate fertilizer increased grain yield by 0.10-0.17 t ha”
t0“pea crops of the Santana variety in the southern forest-steppe of the Omsk Region”
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