Abstract
Abstract Broadcast interseeding cover crops in corn ( Zea mays L.) from the V2–V7 corn growth stages provides farmers the opportunity to establish cover crops over large areas quickly compared with drill interseeders. The objectives of this research were to evaluate broadcast interseeded cover crop establishment and biomass production as well as cover crop effect on corn grain yield in farmer's fields in Michigan. In 2017 and 2018, annual ryegrass ( Lolium multiflorum Lam.), crimson clover ( Trifolium incarnatum L.), and oilseed radish ( Raphanus sativus L.) were broadcast interseeded at the V3 and V6 corn growth stages in nine farm fields. Cover crop density was measured 30 d after interseeding; cover crop density and biomass were measured in October prior to grain corn harvest. Cover crop density varied across site‐years; annual ryegrass usually had the highest density. Fall biomass production of oilseed radish was usually equal to or greater than annual ryegrass and crimson clover biomass. Rainfall during the interseeding period improved cover crop emergence. Cover crop density and biomass were higher in sites that were tilled prior to corn planting compared with no‐till, likely due to better seed to soil contact. Grain yield did not differ in the cover crop vs. no cover crop control treatments. Successfully establishing cover crops by broadcast interseeding in corn is dependent on specific location conditions; conventional tillage and rainfall improved establishment and biomass production.
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
Annual ryegrass usually had the highest cover crop density.
- Taxon
- corn
Zea mays subsp. mayst0 - Material
- annual ryegrasse0
- Outcome
- densitye0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“annual ryegrass usually had the highest density”
t0“corn”
Claim · model-written summary
Oilseed radish fall biomass was usually at least as high as annual ryegrass and crimson clover.
- Taxon
- cornZea mays subsp. mayst0
- Material
- oilseed radishe0
- Outcome
- Fall biomass productione0
- Direction
- equal to or greater thane0
- Comparator
- annual ryegrass and crimson clovere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fall biomass production of oilseed radish was usually equal to or greater than annual ryegrass and crimson clover biomass”
t0“corn”
Claim · model-written summary
Rainfall during interseeding improved cover crop emergence.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Rainfall during the interseeding periode0
- Outcome
- cover crop emergencee0
- Direction
- improvede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rainfall during the interseeding period improved cover crop emergence”
t0“corn”
Claim · model-written summary
Prior tillage produced higher cover crop density and biomass than no-till.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- tilled prior to corn plantinge0
- Outcome
- Cover crop density and biomasse0
- Direction
- highere0
- Comparator
- no‐tille0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cover crop density and biomass were higher in sites that were tilled prior to corn planting compared with no‐till”
Claim · model-written summary
Corn grain yield did not differ between cover crop and no-cover-crop treatments.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- cover crope0
- Outcome
- Grain yielde0
- Direction
- did not differe0
- Comparator
- no cover crop control treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield did not differ in the cover crop vs. no cover crop control treatments”
t0“corn”
The same questions in other papers
Zea mays subsp. mays · growth · Zea mays (maize)Positive and negative results
59 papers in the same direction as this paper · 31 in the opposite direction · 3 reporting no difference from an alternative
- positive
- no effect
- negative
90 papers more in this group
See all 94 papers →cover crop · yield · Zea mays (maize)Positive and negative results
117 papers in the same direction as this paper · 104 in the opposite direction
- positive
- positive
- no effect
218 papers more in this group
See all 222 papers →tillage · growth · Zea mays (maize)Positive and negative results
195 papers in the same direction as this paper · 81 in the opposite direction · 6 reporting no difference from an alternative
- negative
- negative
- negative
279 papers more in this group
See all 283 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.