Abstract
Abstract Crop nutrition under different tillage systems continues to be an issue. Corn (Zea mays L.) growth and nutrient (N, P, K, Ca, Mg) uptake were monitored for two years under either no‐tillage or conventional (moldboard plow plus disc) tillage management. Two rates of applied N (84, 168 kg N ha‐1) were imposed as well. The crop was planted in mid‐May, and sampled about 60 days after planting and at crop maturity. Grain yields were generally increased by the higher N application rate and by tillage reduction. Phosphorus, calcium, and magnesium uptake were generally unaffected by treatment. Total nitrogen recovery by the crop was lowered by no‐tillage soil management at the 84 kg N ha‐1 application rate, but was equal across tillage treatments at the 168 kg N ha‐1 rate. Potassium acquisition by the crop was strongly related to the surface stratification of K in the no‐till soil environment.
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Claims 6
Claim · model-written summary
Higher nitrogen application generally increased corn grain yield.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- higher N application ratee0
- Outcome
- Grain yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yields were generally increased by the higher N application rate and by tillage reduction”
t0“Nutrient uptake of corn grown using moldboard plow or no‐tillage soil management”
Claim · model-written summary
Tillage reduction generally increased corn grain yield.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- tillage reductione0
- Outcome
- Grain yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yields were generally increased by the higher N application rate and by tillage reduction”
t0“Nutrient uptake of corn grown using moldboard plow or no‐tillage soil management”
Claim · model-written summary
Phosphorus, calcium and magnesium uptake was generally unaffected by treatments.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- treatmente0
- Outcome
- Phosphorus, calcium, and magnesium uptakee0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus, calcium, and magnesium uptake were generally unaffected by treatment”
t0“Nutrient uptake of corn grown using moldboard plow or no‐tillage soil management”
Claim · model-written summary
No-tillage lowered crop nitrogen recovery at 84 kg N ha‐1.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- no‐tillage soil managemente0
- Outcome
- Total nitrogen recoverye0
- Direction
- lowerede0
- Qualifier
- 84 kg N ha‐1 application ratee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total nitrogen recovery by the crop was lowered by no‐tillage soil management at the 84 kg N ha‐1 application rate”
t0“Nutrient uptake of corn grown using moldboard plow or no‐tillage soil management”
Claim · model-written summary
Nitrogen recovery was equal across tillage treatments at 168 kg N ha‐1.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- tillage treatmentse0
- Outcome
- nitrogen recoverye0
- Direction
- equale0
- Qualifier
- 168 kg N ha‐1 ratee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total nitrogen recovery by the crop was lowered by no‐tillage soil management at the 84 kg N ha‐1 application rate, but was equal across tillage treatments at the 168 kg N ha‐1 rate”
t0“Nutrient uptake of corn grown using moldboard plow or no‐tillage soil management”
Claim · model-written summary
Crop potassium acquisition was strongly related to soil K stratification under no-till.
- Taxon
- CornZea mays subsp. mayst0
- Compound
- Ke0
- Outcome
- Potassium acquisitione0
- Direction
- strongly relatede0
- Setting
- no‐till soil environmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium acquisition by the crop was strongly related to the surface stratification of K in the no‐till soil environment”
t0“Nutrient uptake of corn grown using moldboard plow or no‐tillage soil management”
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