Abstract
The aim of this study was to evaluate the response of corn (Zea mays L.) grain yield to nitrogen (N) fertilizer application and its residual effect on soybean (Glycine max (L.) Merr.) seed yield. During the 2020 growing season, a corn-soybean rotation study was continued at Scandia, KS (USA), evaluating five N fertilizer rates in corn under both dryland and irrigated conditions. Average corn grain yields ranged from 110 to 206 bu/a for dryland, and from 198 to 221 bu/a for irrigated conditions. Under dryland, maximum corn yields were achieved with an apparent soil N supply level of 350 lb N/a (fertilizer N plus soil N); while removing the water limitations with irrigation resulted in corn grain yields maximized with ca. 250 lb N/a. Average soybean seed yields varied from 66 to 72 bu/a for dryland and from 72 to 79 bu/a for irrigated conditions. A lack of significant residual effect from previous corn N management was observed on soybean yields.
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Claims 7
Claim · model-written summary
Under dryland, corn yield was maximized at an apparent soil N supply of 350 lb N/a.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- apparent soil N supply level of 350 lb N/ae1
- Outcome
- corn yieldse1
- Direction
- maximume1
- Setting
- drylande1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield Response to Nitrogen Management in a Corn-Soybean Sequence in North Central Kansas”
e1“Under dryland, maximum corn yields were achieved with an apparent soil N supply level of 350 lb N/a (fertilizer N plus soil N)”
Claim · model-written summary
With irrigation, corn grain yield was maximized at about 250 lb N/a.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- ca. 250 lb N/ae2
- Outcome
- corn grain yieldse2
- Direction
- maximizede2
- Qualifier
- removing the water limitations with irrigatione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield Response to Nitrogen Management in a Corn-Soybean Sequence in North Central Kansas”
e2“removing the water limitations with irrigation resulted in corn grain yields maximized with ca. 250 lb N/a”
Claim · model-written summary
Average corn grain yields under dryland ranged from 110 to 206 bu/a.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- Average corn grain yieldse3
- Value
- 110 to 206 bu/ae3
- Setting
- drylande3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield Response to Nitrogen Management in a Corn-Soybean Sequence in North Central Kansas”
e3“Average corn grain yields ranged from 110 to 206 bu/a for dryland, and from 198 to 221 bu/a for irrigated conditions”
Claim · model-written summary
Average corn grain yields under irrigated conditions ranged from 198 to 221 bu/a.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- Average corn grain yieldse3
- Value
- 198 to 221 bu/ae3
- Setting
- irrigated conditionse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Yield Response to Nitrogen Management in a Corn-Soybean Sequence in North Central Kansas”
e3“Average corn grain yields ranged from 110 to 206 bu/a for dryland, and from 198 to 221 bu/a for irrigated conditions”
Claim · model-written summary
Average soybean seed yields under dryland ranged from 66 to 72 bu/a.
- Taxon
- soybean
Glycine maxe4 - Outcome
- Average soybean seed yieldse4
- Value
- 66 to 72 bu/ae4
- Setting
- drylande4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Average soybean seed yields varied from 66 to 72 bu/a for dryland and from 72 to 79 bu/a for irrigated conditions”
Claim · model-written summary
Average soybean seed yields under irrigated conditions ranged from 72 to 79 bu/a.
- Taxon
- soybeanGlycine maxe4
- Outcome
- Average soybean seed yieldse4
- Value
- 72 to 79 bu/ae4
- Setting
- irrigated conditionse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Average soybean seed yields varied from 66 to 72 bu/a for dryland and from 72 to 79 bu/a for irrigated conditions”
Claim · model-written summary
Previous corn nitrogen management had no significant residual effect on soybean yields.
- Taxon
- soybeanGlycine maxe5
- Treatment
- previous corn N managemente5
- Outcome
- soybean yieldse5
- Direction
- no_changeinferrede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“A lack of significant residual effect from previous corn N management was observed on soybean yields”
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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.