Abstract
The aim of research is to determine the parameters of biological activity of meadow-chernozem soil and its phytoimmunity in grain-fallow crop rotation at different levels of cultivation intensification and the use of chemicals. The studies were carried out in a long-term (launched in 1973) stationary experiment in grain-fallow crop rotation (fallow – wheat – peas – wheat – barley) under pea crop in the Federal State Budgetary Scientific Institution Omsk Agrarian Scientific Center. In certain periods of 2022 and 2023, with favorable soil moisture, the presence of a significant amount of plant residues in the variant with minimum-zero tillage and the use of complex chemicals, the number of soil micromycetes and nodule bacteria increased to 93.0 thousand and 13.9 million CFU/g, respectively. The total number of soil microflora in the arable layer under different soil cultivation systems for peas without the use of complex chemicals was 51.4–61.2 million CFU/g with a difference of 19.0 % in the ascending series: No-till < moldboard < combined. The use of mineral fertilizers in combination with plant protection products in moldboard and combined tillage did not have a significant effect on the amount of soil microflora, a slight decrease to 17.0 % within the experimental error was noted. In the variants with No-till tillage in combination with intensification products, stimulation of the growth of the number of microorganisms to 22.0 % in relation to the control was noted. On average, according to the soil tillage factor, the greatest development of pea root rot was observed in the No-till variant (3.8 %), a slight decrease (3.2–3.6 %) – in moldboard and combined tillage. The use of plant protection products during the growing season of peas made it possible to reduce the development of root rot by 47.0 % relative to the control, depending on the soil tillage method. With combined treatment, the greatest prevalence of pea root system disease was noted (37.8 %), the least – with No-till treatment (30.8 %). In laboratory conditions, using the wet chamber method, a complex of root rot pathogens was determined, among which fungi of the genus Fusarium spp. prevailed.
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Claims 11
Claim · model-written summary
No-till combined with intensification products stimulated soil microorganism numbers by 22.0 % relative to the control.
- Taxon
- PEA
Lathyrus oleraceust1 - Treatment
- No-till tillage in combination with intensification productse1
- Outcome
- number of microorganismse1
- Direction
- stimulation of the growthe1
- Value
- 22.0 %e1
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“UNDER PEA SOWING”
e1“In the variants with No-till tillage in combination with intensification products, stimulation of the growth of the number of microorganisms to 22.0 % in relation to the control was noted”
Claim · model-written summary
Plant protection products reduced pea root rot development by 47.0 % relative to the control, depending on tillage.
- Taxon
- peasLathyrus oleraceuse2
- Treatment
- plant protection productse2
- Outcome
- development of root rote2
- Direction
- reducee2
- Value
- 47.0 %e2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“UNDER PEA SOWING”
e2“The use of plant protection products during the growing season of peas made it possible to reduce the development of root rot by 47.0 % relative to the control”
Claim · model-written summary
The greatest pea root rot development was observed in the No-till variant (3.8 %).
- Taxon
- peaLathyrus oleraceuse3
- Treatment
- No-tille3
- Outcome
- development of pea root rote3
- Value
- 3.8 %e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“UNDER PEA SOWING”
e3“the greatest development of pea root rot was observed in the No-till variant (3.8 %)”
Claim · model-written summary
With combined treatment the greatest prevalence of pea root system disease was noted (37.8 %).
- Taxon
- peaLathyrus oleraceuse4
- Treatment
- combined treatmente4
- Outcome
- prevalence of pea root system diseasee4
- Value
- 37.8 %e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“UNDER PEA SOWING”
e4“With combined treatment, the greatest prevalence of pea root system disease was noted (37.8 %)”
Claim · model-written summary
The least prevalence of pea root system disease was with No-till treatment (30.8 %).
- Taxon
- peaLathyrus oleraceust1
- Treatment
- No-till treatmente5
- Outcome
- prevalence of pea root system diseasee4
- Value
- 30.8 %e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“UNDER PEA SOWING”
e4“With combined treatment, the greatest prevalence of pea root system disease was noted (37.8 %)”
e5“the least – with No-till treatment (30.8 %)”
Claim · model-written summary
Total soil microflora in the arable layer under the pea soil cultivation systems was 51.4–61.2 million CFU/g.
- Taxon
- peasLathyrus oleraceuse6
- Treatment
- different soil cultivation systemse6
- Outcome
- total number of soil microflorae6
- Value
- 51.4–61.2 million CFU/ge6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“UNDER PEA SOWING”
e6“The total number of soil microflora in the arable layer under different soil cultivation systems for peas without the use of complex chemicals was 51.4–61.2 million CFU/g”
Claim · model-written summary
Total soil microflora differed by 19.0 % across No-till, moldboard and combined tillage in ascending order.
- Taxon
- peasLathyrus oleraceuse6
- Outcome
- total number of soil microflorae6
- Value
- 19.0 %e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“UNDER PEA SOWING”
e6“The total number of soil microflora in the arable layer under different soil cultivation systems for peas without the use of complex chemicals was 51.4–61.2 million CFU/g”
e7“with a difference of 19.0 % in the ascending series: No-till < moldboard < combined”
Claim · model-written summary
Mineral fertilizers with plant protection products in moldboard and combined tillage did not significantly affect soil microflora; a slight decrease of 17.0 % was within experimental error.
- Taxon
- peaLathyrus oleraceust1
- Treatment
- mineral fertilizers in combination with plant protection productse1
- Outcome
- amount of soil microflorae1
- Direction
- did not have a significant effecte1
- Value
- 17.0 %e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“UNDER PEA SOWING”
e1“The use of mineral fertilizers in combination with plant protection products in moldboard and combined tillage did not have a significant effect on the amount of soil microflora”
e2“a slight decrease to 17.0 % within the experimental error was noted”
Claim · model-written summary
In laboratory tests a complex of root rot pathogens was determined, among which Fusarium spp. prevailed.
- Taxon
- peaLathyrus oleraceust1
- Outcome
- complex of root rot pathogense2
- Setting
- laboratory conditionse3
FusariumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“UNDER PEA SOWING”
e2“a complex of root rot pathogens was determined, among which fungi of the genus Fusarium spp. prevailed”
e3“In laboratory conditions, using the wet chamber method”
Claim · model-written summary
Soil micromycetes increased to 93.0 thousand CFU/g in the minimum-zero tillage variant with complex chemicals.
- Taxon
- peaLathyrus oleraceust1
- Treatment
- minimum-zero tillage and the use of complex chemicalse3
- Outcome
- number of soil micromycetese2
- Value
- 93.0 thousande2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“UNDER PEA SOWING”
e2“the number of soil micromycetes and nodule bacteria increased to 93.0 thousand and 13.9 million CFU/g, respectively”
e3“the variant with minimum-zero tillage and the use of complex chemicals”
Claim · model-written summary
Nodule bacteria increased to 13.9 million CFU/g in the same minimum-zero tillage variant with complex chemicals.
- Taxon
- peaLathyrus oleraceust1
- Treatment
- minimum-zero tillage and the use of complex chemicalse3
- Outcome
- nodule bacteriae2
- Value
- 13.9 million CFU/ge2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“UNDER PEA SOWING”
e2“the number of soil micromycetes and nodule bacteria increased to 93.0 thousand and 13.9 million CFU/g, respectively”
e3“the variant with minimum-zero tillage and the use of complex chemicals”