Abstract
Goal. To improve the system of soybean crops weed control under different methods of tillage. Methods. Field and laboratory experiment, mathematical and statistical method to assess the reliability of the obtained results. Results. The researched species composition of weeds in soybean crops included 12 species of 7 families, with a predominance of dicotyledonous species (80.1—93.3%), regardless of the tillage method the proportion of the monocotyledonous species made up 6.7—19.9%. The following species were most common: Chenopodium album L., Amaranthus retroflexus L., Polygonum lapathifolia L., Galinsoga parviflora Cav., Echinochloa crus-galli (L.) Pal. Beauv. and Setaria glauca (L.) Pal. Beauv. The maximum weediness of soybean crops before herbicides application was observed under the moldboardless main tillage use (to a depth of 10—12 cm) and amounted to 481.5 pcs./m2, of which dicotyledonous species made up 81.7% and monocots — 18.3%. The lowest number of weeds (at the level of 254 pcs./m2) was observed under the No-till technology, the share of dicot species made up 80.1%. With the use of the moldboard tillage in soybean crops before herbicides use, the total number of weeds was 425.5 pcs./ m2, where annual dicotyledonous species predominated (93.3%). Soybean crops subject to herbicides use on the moldboard tillage variant formed a 2.49 t/ha yield, which was 50% higher than that of the weeded control variant. The use of the moldboardless tillage and No-till technology ensured productivity in the range of 2.34—2.40 t/ ha. Conclusions. Regardless of the soil tillage method, dicotyledonous weed species occupied from 80.1 to 93.3% of the soybean crops, with the predominance of Chenopodium album L., the share of which was 66.6—77.3% and Polygonum lapathifoliа L. — 17.6—24.9%. The use of various methods of soil tillage and weed control ensures elimination of weeds at the level of 91.0—91.5% and maintaining productivity in the range of 45—50%.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 14
Claim · model-written summary
Soybean weed flora comprised 12 species in seven families.
- Taxon
- soybean
Glycine maxe0 - Outcome
- species composition of weedse0
- Value
- 12 species of 7 familiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“species composition of weeds in soybean crops included 12 species of 7 families”
Claim · model-written summary
Dicotyledonous species predominated at 80.1—93.3%.
- Taxon
- soybeanGlycine maxt0
- Outcome
- dicotyledonous speciese0
- Direction
- predominancee0
- Value
- 80.1—93.3%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“predominance of dicotyledonous species (80.1—93.3%)”
t0“soybean”
Claim · model-written summary
Monocotyledonous weeds comprised 6.7—19.9% regardless of tillage.
- Taxon
- soybeanGlycine maxt0
- Outcome
- proportion of the monocotyledonous speciese0
- Value
- 6.7—19.9%e0
- Qualifier
- regardless of the tillage methode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“regardless of the tillage method the proportion of the monocotyledonous species made up 6.7—19.9%”
t0“soybean”
Claim · model-written summary
Six weed species were most common in soybean crops.
- Taxon
- soybeanGlycine maxt0
- Interactor
- Chenopodium album L.
Chenopodium albume0weed - Outcome
- most commone0
- Qualifier
- Amaranthus retroflexus L., Polygonum lapathifolia L., Galinsoga parviflora Cav., Echinochloa crus-galli (L.) Pal. Beauv. and Setaria glauca (L.) Pal. Beauv.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The following species were most common: Chenopodium album L., Amaranthus retroflexus L., Polygonum lapathifolia L., Galinsoga parviflora Cav., Echinochloa crus-galli (L.) Pal. Beauv. and Setaria glauca (L.) Pal. Beauv.”
t0“soybean”
Claim · model-written summary
Moldboardless tillage produced maximum pre-herbicide weediness of 481.5 pcs./m2.
- Taxon
- soybeanGlycine maxe0
- Treatment
- moldboardless main tillagee0
- Outcome
- weediness of soybean cropse0
- Direction
- maximume0
- Value
- 481.5 pcs./m2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maximum weediness of soybean crops before herbicides application was observed under the moldboardless main tillage use (to a depth of 10—12 cm) and amounted to 481.5 pcs./m2”
Claim · model-written summary
No-till had the lowest pre-herbicide weed count of 254 pcs./m2.
- Taxon
- soybeanGlycine maxt0
- Treatment
- No-till technologye0
- Outcome
- number of weedse0
- Direction
- loweste0
- Value
- 254 pcs./m2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lowest number of weeds (at the level of 254 pcs./m2) was observed under the No-till technology”
t0“soybean”
Claim · model-written summary
Moldboard tillage had 425.5 pcs./m2 weeds before herbicides.
- Taxon
- soybeanGlycine maxe0
- Treatment
- moldboard tillagee0
- Outcome
- total number of weedse0
- Value
- 425.5 pcs./ m2e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moldboard tillage in soybean crops before herbicides use, the total number of weeds was 425.5 pcs./ m2”
Claim · model-written summary
Herbicide treated moldboard soybean yielded 2.49 t/ha, 50% higher than weeded control.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- herbicides use on the moldboard tillage variante0
- Outcome
- yielde0
- Direction
- highere0
- Value
- 2.49 t/hae0
- Qualifier
- 50%e0
- Comparator
- weeded control variante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean crops subject to herbicides use on the moldboard tillage variant formed a 2.49 t/ha yield, which was 50% higher than that of the weeded control variant”
Claim · model-written summary
Moldboardless tillage yielded 2.34—2.40 t/ha.
- Taxon
- soybeanGlycine maxt0
- Treatment
- moldboardless tillagee0
- Outcome
- productivitye0
- Value
- 2.34—2.40 t/ hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moldboardless tillage and No-till technology ensured productivity in the range of 2.34—2.40 t/ ha”
t0“soybean”
Claim · model-written summary
No-till yielded within 2.34—2.40 t/ha.
- Taxon
- soybeanGlycine maxt0
- Treatment
- No-till technologye0
- Outcome
- productivitye0
- Value
- 2.34—2.40 t/ hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“moldboardless tillage and No-till technology ensured productivity in the range of 2.34—2.40 t/ ha”
t0“soybean”
Claim · model-written summary
Chenopodium album predominated at 66.6—77.3%.
- Taxon
- soybeanGlycine maxt0
- Interactor
- Chenopodium album L.Chenopodium albume0weed
- Outcome
- sharee0
- Direction
- predominancee0
- Value
- 66.6—77.3%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“predominance of Chenopodium album L., the share of which was 66.6—77.3%”
t0“soybean”
Claim · model-written summary
Polygonum lapathifoliа comprised 17.6—24.9%.
- Taxon
- soybeanGlycine maxt0
- Interactor
- Polygonum lapathifoliа L.e0weed
- Outcome
- Polygonum lapathifoliа L.e0
- Value
- 17.6—24.9%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polygonum lapathifoliа L. — 17.6—24.9%”
t0“soybean”
Claim · model-written summary
Tillage and weed control eliminated 91.0—91.5% of weeds.
- Taxon
- soybeanGlycine maxt0
- Treatment
- various methods of soil tillage and weed controle0
- Outcome
- elimination of weedse0
- Value
- 91.0—91.5%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“various methods of soil tillage and weed control ensures elimination of weeds at the level of 91.0—91.5%”
t0“soybean”
Claim · model-written summary
Tillage and weed control maintained productivity in the range of 45—50%.
- Taxon
- soybeanGlycine maxt0
- Outcome
- productivitye0
- Value
- 45—50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maintaining productivity in the range of 45—50%”
t0“soybean”
The same questions in other papers
tillage · organism · Glycine max (soybean)Positive and negative results
11 papers in the same direction as this paper · 12 in the opposite direction
- positive
- positive
- positive
20 papers more in this group
See all 24 papers →tillage · yield · Glycine max (soybean)Positive and negative results
263 papers in the same direction as this paper · 100 in the opposite direction · 26 reporting no difference from an alternative
- no effect
- no effect
- no effect
386 papers more in this group
See all 390 papers →herbicide · yield · Glycine max (soybean)Positive and negative results
321 papers in the same direction as this paper · 112 in the opposite direction · 26 reporting no difference from an alternative
- no effect
- no effect
- no effect
456 papers more in this group
See all 460 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.