Abstract
Abstract Grower acceptance of the no‐till technique for corn ( Zea mays L.) production is increasing due to reduced labor costs, improved water and soil conservation by the herbicide‐killed cover crop, and frequently higher yields compared to conventional tillage. Information regarding macro‐ and micronutrient uptake by corn produced under the unique no‐till system is limited. This field study compares elemental composition, plant population, and yield of corn (var. ‘Wisconsin 335A’) under no‐till and conventional culture at five lime levels. The concentration of Ca, Mg, Zn, Mo, B, and Al in corn leaf tissue was significantly reduced and K concentration was significantly increased under no‐till conditions. Significant soil pH increases were noted only under the no‐till system in the surface samples (O to 8 cm) at the two highest lime application rates (4 and 8 tons/ha). Plant population was reduced (16.1%), but silage yields increased (22.5%) with the no‐tillage method. This may reflect increased moisture conservation, since relatively dry growing conditions prevailed. The reduced nutrient utilization (with the exception of K) and plant population under no‐till conditions may justify changes in fertilization practice and an increase in seeding rates. The former is particularly important if no‐till methods were to be used over extended periods of time without plowing.
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Claims 7
Claim · model-written summary
No-till significantly reduced corn leaf Ca, Mg and Zn concentrations.
- Taxon
- corn
Zea mays subsp. mayse0 - Organ / stage
- leaf tissuee0
- Treatment
- no‐till conditionse0
- Outcome
- concentration of Ca, Mg, Zne0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of Ca, Mg, Zn, Mo, B, and Al in corn leaf tissue was significantly reduced and K concentration was significantly increased under no‐till conditions”
Claim · model-written summary
No-till significantly reduced corn leaf Mo, B and Al concentrations.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- leaf tissuee0
- Treatment
- no‐till conditionse0
- Outcome
- Mo, B, and Ale0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of Ca, Mg, Zn, Mo, B, and Al in corn leaf tissue was significantly reduced and K concentration was significantly increased under no‐till conditions”
Claim · model-written summary
No-till significantly increased corn leaf K concentration.
- Taxon
- cornZea mays subsp. mayse1
- Organ / stage
- leaf tissuee1
- Treatment
- no‐till conditionse0
- Outcome
- K concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K concentration was significantly increased under no‐till conditions”
e1“corn leaf tissue”
Claim · model-written summary
No-till increased soil pH at the highest two lime rates in surface soil.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- no‐till systeme0
- Outcome
- soil pHe0
- Direction
- increasese0
- Qualifier
- at the two highest lime application rates (4 and 8 tons/ha)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant soil pH increases were noted only under the no‐till system in the surface samples (O to 8 cm) at the two highest lime application rates (4 and 8 tons/ha)”
e1“corn ( Zea mays L.)”
Claim · model-written summary
No-tillage reduced plant population by 16.1%.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- no‐tillage methode0
- Outcome
- Plant populatione0
- Direction
- reducede0
- Value
- 16.1%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant population was reduced (16.1%), but silage yields increased (22.5%) with the no‐tillage method”
e1“corn ( Zea mays L.)”
Claim · model-written summary
No-tillage increased silage yield by 22.5%.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- no‐tillage methode0
- Outcome
- silage yieldse0
- Direction
- increasede0
- Value
- 22.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant population was reduced (16.1%), but silage yields increased (22.5%) with the no‐tillage method”
e1“corn ( Zea mays L.)”
Claim · model-written summary
The authors suggested fertilizer and seeding-rate changes for no-till cultivation.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- no‐till conditionse0
- Outcome
- changes in fertilization practice and an increase in seeding ratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reduced nutrient utilization (with the exception of K) and plant population under no‐till conditions may justify changes in fertilization practice and an increase in seeding rates”
e1“corn ( Zea mays L.)”
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