Abstract
Winter rye (Secale cereale L.) has become an important cover crop in South Dakota; yet, concerns over negative impacts on cash crop yields is one important limitation to the widespread adoption of winter rye in cropping systems. Two field studies were implemented at the Southeast Research Farm near Beresford, SD investigating the impacts of five seeding rates (0-90 kg ha-1) and termination timings (April 19th- May31st) with the objectives of examining the roles of winter rye management practices on soybean production and yield from nutrient cycling of nitrogen (N) and sulfur (S) in the agroecosystem. Plant, residue, and soybean samples were collected at critical points to observe changes in nutrient fluxes between sinks in the agroecosystem while fiber concentrations of rye and residue materials were analyzed to understand how management practices influenced the dynamics driving nutrient turnover. Delaying rye termination beyond May 13th resulted in dramatic increases in rye biomass leading to greater nutrient uptake and lower residue quality while seeding rate did not affect biomass production until 90 kg ha-1 was applied. Later termination dates and the 67-90 kg ha-1 seeding rates contributed to greater nutrient immobilization in crop residues and slower nutrient release as compared to earlier terminations and the 22-45 kg ha-1 seeding rates. This resulted in a decreased soybean S in both studies at later terminations and higher seeding rates; however, high fertility soils at the research location contributed sufficient S to alleviate impacts on grain yield. Yield was unaffected by seeding rate treatment while later termination timings produced a yield advantage possibly as a result of delayed soybean development.
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 10
Claim · model-written summary
Delaying rye termination beyond May 13th increased rye biomass.
- Taxon
- rye
Secale cerealee1 - Treatment
- Delaying rye termination beyond May 13the1
- Outcome
- rye biomasse1
- Direction
- increasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Delaying rye termination beyond May 13th resulted in dramatic increases in rye biomass leading to greater nutrient uptake and lower residue quality while seeding rate did not affect biomass production until 90 kg ha-1 was applied”
Claim · model-written summary
Delaying rye termination beyond May 13th increased nutrient uptake by rye.
- Taxon
- ryeSecale cerealee1
- Treatment
- Delaying rye termination beyond May 13the1
- Outcome
- nutrient uptakee1
- Direction
- greatere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Delaying rye termination beyond May 13th resulted in dramatic increases in rye biomass leading to greater nutrient uptake and lower residue quality while seeding rate did not affect biomass production until 90 kg ha-1 was applied”
Claim · model-written summary
Delaying rye termination beyond May 13th lowered rye residue quality.
- Taxon
- ryeSecale cerealee1
- Treatment
- Delaying rye termination beyond May 13the1
- Outcome
- residue qualitye1
- Direction
- lowere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Delaying rye termination beyond May 13th resulted in dramatic increases in rye biomass leading to greater nutrient uptake and lower residue quality while seeding rate did not affect biomass production until 90 kg ha-1 was applied”
Claim · model-written summary
Seeding rate did not affect rye biomass production until 90 kg ha-1 was applied.
- Taxon
- ryeSecale cerealee1
- Treatment
- seeding ratee2
- Outcome
- biomass productione2
- Direction
- did not affecte2
- Qualifier
- until 90 kg ha-1 was appliede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Delaying rye termination beyond May 13th resulted in dramatic increases in rye biomass leading to greater nutrient uptake and lower residue quality while seeding rate did not affect biomass production until 90 kg ha-1 was applied”
e2“seeding rate did not affect biomass production until 90 kg ha-1 was applied”
Claim · model-written summary
Later termination and 67-90 kg ha-1 seeding rates increased nutrient immobilization in rye crop residues compared with earlier termination and 22-45 kg ha-1 seeding rates.
- Taxon
- ryeSecale cerealee1
- Treatment
- Later termination dates and the 67-90 kg ha-1 seeding ratese3
- Outcome
- nutrient immobilization in crop residuese3
- Direction
- greatere3
- Comparator
- earlier terminations and the 22-45 kg ha-1 seeding ratese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Delaying rye termination beyond May 13th resulted in dramatic increases in rye biomass leading to greater nutrient uptake and lower residue quality while seeding rate did not affect biomass production until 90 kg ha-1 was applied”
e3“Later termination dates and the 67-90 kg ha-1 seeding rates contributed to greater nutrient immobilization in crop residues and slower nutrient release as compared to earlier terminations and the 22-45 kg ha-1 seeding rates”
Claim · model-written summary
Later termination and 67-90 kg ha-1 seeding rates slowed nutrient release from rye crop residues compared with earlier termination and 22-45 kg ha-1 seeding rates.
- Taxon
- ryeSecale cerealee1
- Treatment
- Later termination dates and the 67-90 kg ha-1 seeding ratese3
- Outcome
- nutrient releasee3
- Direction
- slowere3
- Comparator
- earlier terminations and the 22-45 kg ha-1 seeding ratese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Delaying rye termination beyond May 13th resulted in dramatic increases in rye biomass leading to greater nutrient uptake and lower residue quality while seeding rate did not affect biomass production until 90 kg ha-1 was applied”
e3“Later termination dates and the 67-90 kg ha-1 seeding rates contributed to greater nutrient immobilization in crop residues and slower nutrient release as compared to earlier terminations and the 22-45 kg ha-1 seeding rates”
Claim · model-written summary
Later termination and higher seeding rates decreased soybean S.
- Taxon
- soybean
Glycine maxe4 - Treatment
- later terminations and higher seeding ratese4
- Outcome
- soybean Se4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“This resulted in a decreased soybean S in both studies at later terminations and higher seeding rates”
Claim · model-written summary
High fertility soils at the research location contributed sufficient sulfur to alleviate the impact of rye management on soybean grain yield.
- Taxon
- soybeanGlycine maxe6
- Outcome
- impacts on grain yielde5
- Qualifier
- sufficient Se5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“high fertility soils at the research location contributed sufficient S to alleviate impacts on grain yield”
e6“on soybean production and yield”
Claim · model-written summary
Seeding rate treatment did not change soybean yield.
- Taxon
- soybeanGlycine maxe7
- Treatment
- seeding rate treatmente6
- Outcome
- Yielde6
- Direction
- unaffectede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Yield was unaffected by seeding rate treatment”
e7“on soybean production and yield”
Claim · model-written summary
Later termination timing produced a soybean yield advantage, possibly as a result of delayed soybean development.
- Taxon
- soybeanGlycine maxe7
- Treatment
- later termination timingse7
- Outcome
- yielde7
- Direction
- advantagee7
- Qualifier
- possibly as a result of delayed soybean developmente7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“later termination timings produced a yield advantage possibly as a result of delayed soybean development”
The same questions in other papers
density · organism · Glycine max (soybean)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- no effect
1 paper more in this group
See all 5 papers →density · yield · Secale cereale (rye)Positive and negative results
3 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →density · yield · Glycine max (soybean)Positive and negative results
97 papers in the same direction as this paper · 207 in the opposite direction
- positive
- positive
- positive
301 papers more in this group
See all 305 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.