Abstract
Abstract No‐tillage and conventional tillage (plow, disk, cultivate) were used for corn grown in monoculture for 6 years with three rates of nitrogen fertilization. Phosphorus and potassium were applied uniformly each year with the planter and as surface bulk applications during 2 years of the study. Grain yields were higher for notillage than for conventional tillage treatments at all N levels. Most of the P applied to the soil surface between rows of no‐tillage treatments remained in the surface 2.5 cm of soil. K was also concentrated near the soil surface. P and K concentration in leaves of maize grown without tillage were equal to plants grown with conventional tillage when sampled at tasseling and significantly higher when sampled at the 8 to 10 leaf stage.
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Claims 5
Claim · model-written summary
No-tillage produced higher grain yield than conventional tillage at all N levels.
- Treatment
- notillagee0
- Outcome
- Grain yieldse0
- Direction
- highere0
- Qualifier
- at all N levelse0
- Comparator
- conventional tillage treatmentse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize”
e0“Grain yields were higher for notillage than for conventional tillage treatments at all N levels.”
Claim · model-written summary
Most surface-applied P remained in the top 2.5 cm of soil in no-tillage rows.
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize”
e0“Most of the P applied to the soil surface between rows of no‐tillage treatments remained in the surface 2.5 cm of soil.”
Claim · model-written summary
K was concentrated near the soil surface.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize”
e0“K was also concentrated near the soil surface.”
Claim · model-written summary
At tasseling, leaf P and K concentrations were equal under no-tillage and conventional tillage.
- Organ / stage
- tasselinge0
- Treatment
- without tillagee0
- Outcome
- P and K concentration in leavese0
- Direction
- equale0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize”
e0“P and K concentration in leaves of maize grown without tillage were equal to plants grown with conventional tillage when sampled at tasseling”
Claim · model-written summary
At the 8 to 10 leaf stage, leaf P and K concentrations were significantly higher without tillage.
- Organ / stage
- 8 to 10 leaf stagee0
- Treatment
- without tillagee0
- Outcome
- P and K concentration in leavese0
- Direction
- highere0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize”
e0“P and K concentration in leaves of maize grown without tillage were equal to plants grown with conventional tillage when sampled at tasseling and significantly higher when sampled at the 8 to 10 leaf stage.”
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See all 1,099 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.