Abstract
A competitive crop utilizes resources before they are available to the weeds. The essential steps of developing a competitive crop begin with good stand establishment. A vigorously growing crop is also important towards establishing a competitive stand. Components of establishing a good and vigorous crop stand include crop rotation, seedbed preparation, crop type and variety selection, seed quality and treatment, seeding rate (stand density), seeding date, fertilizer rate and placement, pest and disease control, etc. Failure to properly manage these components leads to poor germination, week seedlings with poor grows and vigor therefore promotes weed competition with the crop. Biomass production and density of weeds and winter wheat plants was studied in a seeding time and nitrogen application small-plot field trial. This trial was a perfect example of how the proper management practices help us to decrease weediness and increase competition of winter wheat. The trial included 3 planting date treatments (early, optimum and late) and 2 nitrogen rate treatments (56 kg N ha-1 and 110 kg N ha-1) in spring top-dressing application. The influence of treatments on the weed infestation and crop plant vs. weed competition was studied at beginning of steam extension (BBCH 32-33, two visible nodes on the steam) and after harvest on the stubble-field. The competitiveness of weeds and crop plants were evaluated by biomass production and also by nutrient content of plant samples. Biomass forming of weeds in wheat canopy was negligible compared to that of weeds, but it was strong on the stubble. Delayed planting Leaded to poorer wheat growth and better weed biomass production. The higher rate of nitrogen resuited in a less weediness on early and optimum time seeded plots, but the tendency was opposite in the late seeded treatment.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 5
Claim · model-written summary
Weed biomass in the wheat canopy was negligible but strong in stubble.
- Taxon
- winter wheat
Triticum aestivume1 - Interactor
- weedse0weed
- Outcome
- Biomass forming of weedse0
- Setting
- wheat canopye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biomass forming of weeds in wheat canopy was negligible compared to that of weeds, but it was strong on the stubble”
e1“winter wheat plants”
t0“Crop competitiveness”
Claim · model-written summary
Delayed planting led to poorer wheat growth.
- Taxon
- winter wheatTriticum aestivume1
- Treatment
- Delayed plantinge0
- Outcome
- wheat growthe0
- Direction
- poorere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delayed planting Leaded to poorer wheat growth and better weed biomass production”
e1“winter wheat plants”
Claim · model-written summary
Delayed planting increased weed biomass production.
- Taxon
- winter wheatTriticum aestivume1
- Treatment
- Delayed plantinge0
- Interactor
- weede0weed
- Outcome
- weed biomass productione0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delayed planting Leaded to poorer wheat growth and better weed biomass production”
e1“winter wheat plants”
Claim · model-written summary
The higher nitrogen rate reduced weediness in early and optimum seeded plots.
- Taxon
- winter wheatTriticum aestivume1
- Treatment
- higher rate of nitrogene0
- Outcome
- weedinesse0
- Direction
- lesse0
- Qualifier
- early and optimum time seeded plotse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher rate of nitrogen resuited in a less weediness on early and optimum time seeded plots”
e1“winter wheat plants”
Claim · model-written summary
The higher nitrogen rate had the opposite weediness tendency in late seeded plots.
- Taxon
- winter wheatTriticum aestivume1
- Treatment
- higher rate of nitrogene0
- Outcome
- weedinesse0
- Direction
- increaseinferrede0
- Qualifier
- late seeded treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The higher rate of nitrogen resuited in a less weediness on early and optimum time seeded plots, but the tendency was opposite in the late seeded treatment”
e1“winter wheat plants”
The same questions in other papers
sowing time · weed · Triticum aestivum (wheat)Positive and negative results
5 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
6 papers more in this group
See all 10 papers →sowing time · growth · Triticum aestivum (wheat)Positive and negative results
47 papers in the same direction as this paper · 65 in the opposite direction
- positive
- positive
- positive
109 papers more in this group
See all 113 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.