Abstract
Kura clover ( Trifolium ambiguum M. Bieb.) living mulches have been used successfully to produce corn ( Zea mays L.) in the upper Midwest. A study was conducted at Fruita, CO (39.1500° N, 108.7167° W), to evaluate corn production in a kura clover living mulch system under furrow irrigation. Living mulch treatments were: (i) no‐till, (ii) no‐till with a pre‐plant herbicide application, and (iii) strip‐tillage. Nitrogen fertilization rates of 0, 84, and 168 kg N ha −1 were applied to living mulch plots and 0, 168, and 336 kg N ha −1 were applied to conventional corn plots. Grain yield was responsive to N rate with highest yields in kura clover living mulch plots occurring at 168 kg N ha −1 (10.1 and 10.8 Mg ha −1 in 2007 and 2008, respectively). The strip‐till treatment performed best in 2007, yielding 11.7 Mg ha −1 at 168 kg N ha −1 , but did not differ from the no‐till with pre‐plant herbicide in 2008. Averaged across tillage treatments, kura clover biomass was highest (991 kg ha −1 ) when no N was applied and the difference in kura clover biomass was not significant between the 84 and 168 kg ha −1 N rates. There was no difference in kura clover production among suppression treatments (averaging 726 kg ha −1 ). Strip‐tillage at a 168 kg N ha −1 rate is a promising option for producing grain corn in a kura clover living mulch cropping system under furrow irrigation in the Intermountain West.
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Claims 7
Claim · model-written summary
Corn grain yield in living mulch responded to nitrogen, peaking at 168 kg N ha −1 in both years.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- 168 kg N ha −1e0
- Outcome
- Grain yielde0
- Direction
- higheste0
- Value
- 10.1 and 10.8 Mg ha −1e0
- Comparator
- N ratee0
- Setting
- kura clover living mulch plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield was responsive to N rate with highest yields in kura clover living mulch plots occurring at 168 kg N ha −1 (10.1 and 10.8 Mg ha −1 in 2007 and 2008, respectively)”
t0“Corn”
t1“Corn”
Claim · model-written summary
Strip tillage yielded 11.7 Mg ha −1 at 168 kg N ha −1 in 2007 and performed best.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- strip‐till treatmente0
- Outcome
- yieldinge0
- Direction
- beste0
- Value
- 11.7 Mg ha −1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The strip‐till treatment performed best in 2007, yielding 11.7 Mg ha −1 at 168 kg N ha −1”
t0“Corn”
t1“Corn”
Claim · model-written summary
Strip tillage did not differ from no till with preplant herbicide in 2008.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- strip‐till treatmente0
- Outcome
- did not differe0
- Direction
- did not differe0
- Comparator
- no‐till with pre‐plant herbicidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The strip‐till treatment performed best in 2007, yielding 11.7 Mg ha −1 at 168 kg N ha −1 , but did not differ from the no‐till with pre‐plant herbicide in 2008”
t0“Corn”
t1“Corn”
Claim · model-written summary
Kura clover biomass was highest without applied nitrogen, at 991 kg ha −1.
- Taxon
- kura clovere0
- Treatment
- no N was appliede0
- Outcome
- kura clover biomasse0
- Direction
- higheste0
- Value
- 991 kg ha −1e0
Not reportedComparator
Verbatim
e0“kura clover biomass was highest (991 kg ha −1 ) when no N was applied”
Claim · model-written summary
Kura clover biomass did not significantly differ between the 84 and 168 kg ha −1 nitrogen rates.
Verbatim
e0“the difference in kura clover biomass was not significant between the 84 and 168 kg ha −1 N rates”
Claim · model-written summary
Kura clover production did not differ among suppression treatments, averaging 726 kg ha −1.
- Taxon
- kura clovere0
- Treatment
- suppression treatmentse0
- Outcome
- kura clover productione0
- Direction
- no differencee0
- Value
- 726 kg ha −1e0
Not reportedComparator
Verbatim
e0“There was no difference in kura clover production among suppression treatments (averaging 726 kg ha −1 )”
Claim · model-written summary
The authors recommend strip tillage at 168 kg N ha −1 for furrow irrigated grain corn in living mulch.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- Strip‐tillage at a 168 kg N ha −1 ratee0
- Setting
- Intermountain Weste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strip‐tillage at a 168 kg N ha −1 rate is a promising option for producing grain corn in a kura clover living mulch cropping system under furrow irrigation in the Intermountain West”
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See all 2,185 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.