Abstract
Abstract Because the absence of tillage precludes the mixing of lime with soil when no‐tillage corn ( Zea mays L.) is grown, an experiment was conducted to determine if surface application would be effective. Information on the subject is not presently available but is needed to guide growers in neutralizing soil acidity caused by high rates of nitrogen applied to corn. Field studies over an 8‐year period compared continuous no‐tillage corn with surface‐applied lime to continuous conventionally tilled corn with lime incorporated into the soil. Comparisons of the two tillage methods were also made without lime to determine the degree of response to lime. Lime increased corn yield more than twice as much in no‐tillage culture as in conventional tillage. Lime was essential for highest yields with both tillage methods but the yield increase due to surface applied lime in no‐tillage culture averaged 31.3%, compared to a 13.5% yield increase due to incorporated, lime in conventional tillage culture. Associated with the larger yield increase from lime in the no‐tillage culture were 1) a higher pH in the 0 to 10‐cm soil layer (averaging 6.4 in no‐tillage compared to 6.0 in conventional tillage) in the eighth year; and 2) larger increase in exchangeable Ca and a reduction in exchangeable AI in the 0 to 10‐cm layer. The pH and exchangeable Ca and AI in the 10 to 20‐cm soil layers from tilled and nontilled soil were almost identical. A highly significant correlation was found between maturity of the corn and yield increase due to lime. Thus, it appears probable that the principal mechanism for the yield reduction caused by the lack of lime was reduced growth. This was especially apparent in early growth stages but was partially overcome later. It was more noticeable in no‐tillage corn than in conventionally tilled corn. At harvest, the increase in dry matter content of no‐tillage corn ears which was caused by lime was larger than that in conventionally tilled corn. Water use efficiency for the increased corn grain yield due to lime in no‐tillage was calculated to be almost three times that in conventional tillage.
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Claims 13
Claim · model-written summary
Lime increased corn yield more than twice as much under no tillage as conventional tillage.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- Limee0
- Outcome
- corn yielde0
- Direction
- increasede0
- Value
- more than twicee0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lime increased corn yield more than twice as much in no‐tillage culture as in conventional tillage.”
Claim · model-written summary
Surface lime increased no tillage corn yield by 31.3%.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- surface applied limee0
- Outcome
- yielde0
- Direction
- increasee0
- Value
- 31.3%e0
- Setting
- no‐tillage culturee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the yield increase due to surface applied lime in no‐tillage culture averaged 31.3%”
e1“no‐tillage corn ( Zea mays L.)”
Claim · model-written summary
Incorporated lime increased conventional tillage corn yield by 13.5%.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- incorporated, limee0
- Outcome
- yielde0
- Direction
- increasee0
- Value
- 13.5%e0
- Setting
- conventional tillage culturee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“13.5% yield increase due to incorporated, lime in conventional tillage culture.”
e1“corn yield”
Claim · model-written summary
Lime was needed for the highest corn yields under both tillage systems.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- Limee0
- Outcome
- highest yieldse0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lime was essential for highest yields with both tillage methods”
e1“corn yield”
Claim · model-written summary
No tillage had higher topsoil pH than conventional tillage in year eight.
- Taxon
- cornZea mays subsp. mayse1
- Outcome
- pH in the 0 to 10‐cm soil layere0
- Direction
- highere0
- Value
- 6.4e0
- Qualifier
- 6.0e0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a higher pH in the 0 to 10‐cm soil layer (averaging 6.4 in no‐tillage compared to 6.0 in conventional tillage) in the eighth year”
e1“continuous no‐tillage corn”
Claim · model-written summary
Liming under no tillage produced a larger increase in topsoil exchangeable Ca.
- Taxon
- cornZea mays subsp. mayse1
- Outcome
- exchangeable Cae0
- Direction
- larger increasee0
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“larger increase in exchangeable Ca and a reduction in exchangeable AI in the 0 to 10‐cm layer”
e1“continuous no‐tillage corn”
Claim · model-written summary
Liming under no tillage reduced topsoil exchangeable Al.
- Taxon
- cornZea mays subsp. mayse1
- Outcome
- exchangeable AIe0
- Direction
- reductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a reduction in exchangeable AI in the 0 to 10‐cm layer”
e1“continuous no‐tillage corn”
Claim · model-written summary
Subsoil pH and exchangeable Ca and Al were nearly identical under tilled and no tillage soil.
- Taxon
- cornZea mays subsp. mayse1
- Outcome
- pH and exchangeable Ca and AIe0
- Direction
- almost identicale0
- Comparator
- tilled and nontilled soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The pH and exchangeable Ca and AI in the 10 to 20‐cm soil layers from tilled and nontilled soil were almost identical.”
e1“continuous no‐tillage corn”
Claim · model-written summary
Corn maturity correlated significantly with yield gain from lime.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- maturity of the corne0
- Outcome
- yield increase due to limee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A highly significant correlation was found between maturity of the corn and yield increase due to lime.”
Claim · model-written summary
The authors attribute lime deficient corn yield loss principally to reduced growth, especially early.
- Taxon
- cornZea mays subsp. mayse1
- Organ / stage
- early growth stagese0
- Outcome
- yield reductione0
- Qualifier
- reduced growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the principal mechanism for the yield reduction caused by the lack of lime was reduced growth. This was especially apparent in early growth stages but was partially overcome later.”
e1“corn yield”
Claim · model-written summary
Growth reduction from lack of lime was more noticeable in no tillage corn.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- reduced growthe1
- Direction
- more noticeablee0
- Comparator
- conventionally tilled corne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was more noticeable in no‐tillage corn than in conventionally tilled corn.”
e1“reduced growth”
Claim · model-written summary
Lime increased ear dry matter more in no tillage corn than conventional corn.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- earse0
- Treatment
- limee0
- Outcome
- dry matter content of no‐tillage corn earse0
- Direction
- largere0
- Comparator
- conventionally tilled corne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase in dry matter content of no‐tillage corn ears which was caused by lime was larger than that in conventionally tilled corn.”
Claim · model-written summary
Water use efficiency for lime induced grain yield gain under no tillage was almost three times conventional tillage.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- Water use efficiencye0
- Direction
- increasede0
- Value
- almost three timese0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water use efficiency for the increased corn grain yield due to lime in no‐tillage was calculated to be almost three times that in conventional tillage.”
The same questions in other papers
lime · yield · Zea mays (maize)Positive and negative results
184 papers in the same direction as this paper · 31 in the opposite direction · 3 reporting no difference from an alternative
- positive
- positive
- positive
215 papers more in this group
See all 219 papers →lime · quality: grain · Zea mays (maize)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.