Abstract
The use of meta-response functions based on EPIC-generated data resulted in comparisons between variable (VRAT) and uniform rate application technologies for 36 simulated fields. VRAT was more profitable and less nitrogen was lost to the environment in most cases. When spatial variability was small, uniform rate application techniques were adopted. However, when nitrogen use is restricted, VRAT is used on all simulated fields.
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Claims 4
Claim · model-written summary
Variable rate nitrogen application was more profitable in most simulated fields.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- VRATe1
- Outcome
- profitablee1
- Direction
- moree1
- Qualifier
- most casese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn Fields”
e1“VRAT was more profitable and less nitrogen was lost to the environment in most cases.”
Claim · model-written summary
Variable rate nitrogen application reduced nitrogen losses in most simulated fields.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- VRATe1
- Outcome
- nitrogen was lost to the environmente1
- Direction
- lesse1
- Qualifier
- most casese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn Fields”
e1“VRAT was more profitable and less nitrogen was lost to the environment in most cases.”
Claim · model-written summary
Uniform rate application was adopted when spatial variability was small.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- uniform rate application techniques were adoptede1
- Qualifier
- spatial variability was smalle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn Fields”
e1“When spatial variability was small, uniform rate application techniques were adopted.”
Claim · model-written summary
Variable rate application was used on all simulated fields when nitrogen use was restricted.
- Taxon
- CornZea mays subsp. mayst0
- Outcome
- VRAT is used on all simulated fieldse1
- Qualifier
- nitrogen use is restrictede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn Fields”
e1“when nitrogen use is restricted, VRAT is used on all simulated fields.”