Abstract
Abstract An experiment was conducted over two years on a Typic Haplaquoll and an Aquic Argiudoll to determine the effect of tillage on the response of two corn hybrids (Zea mays) to soil K fertility. Four tillage systems were used: moldboard plow, chisel plow, disk, and no‐till. The soil K treatments were 336 and 560 kg exchangeable K/ha and 336 kg exchangeable K + 73 kg banded K/ha. Increase in exchangeable soil K increased midseason leaf K each year. Banded K increased leaf K only in the drier year. Tillage affected grain yields only in the growing season with the higher precipitation. The lowest grain yields were obtained with the no‐till system, the highest with the chisel system. Potassium treatment did not affect grain yields. It was concluded that K fertility recommendations developed for moldboard plow systems are adequate for reduced tillage systems.
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Claims 7
Claim · model-written summary
Increase in exchangeable soil K increased midseason leaf K in corn each year.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- exchangeable soil Ke1
- Outcome
- midseason leaf Ke1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine the effect of tillage on the response of two corn hybrids (Zea mays) to soil K fertility”
e1“Increase in exchangeable soil K increased midseason leaf K each year”
Claim · model-written summary
Banded K increased corn leaf K only in the drier year.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Banded Ke1
- Outcome
- leaf Ke1
- Direction
- increasede1
- Qualifier
- only in the drier yeare1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine the effect of tillage on the response of two corn hybrids (Zea mays) to soil K fertility”
e1“Banded K increased leaf K only in the drier year”
Claim · model-written summary
The no-till system gave the lowest corn grain yields, compared with the chisel system.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- no‐till systeme1
- Outcome
- grain yieldse1
- Direction
- loweste1
- Comparator
- chisel systeme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine the effect of tillage on the response of two corn hybrids (Zea mays) to soil K fertility”
e1“The lowest grain yields were obtained with the no‐till system, the highest with the chisel system”
Claim · model-written summary
The chisel system gave the highest corn grain yields, compared with the no-till system.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- chisel systeme1
- Outcome
- grain yieldse1
- Direction
- higheste1
- Comparator
- no‐till systeme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine the effect of tillage on the response of two corn hybrids (Zea mays) to soil K fertility”
e1“The lowest grain yields were obtained with the no‐till system, the highest with the chisel system”
Claim · model-written summary
Tillage affected corn grain yields only in the growing season with the higher precipitation.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Tillagee1
- Outcome
- grain yieldse1
- Qualifier
- only in the growing season with the higher precipitatione1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine the effect of tillage on the response of two corn hybrids (Zea mays) to soil K fertility”
e1“Tillage affected grain yields only in the growing season with the higher precipitation”
Claim · model-written summary
Potassium treatment did not change corn grain yields.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Potassium treatmente1
- Outcome
- grain yieldse1
- Direction
- no_changeinferrede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine the effect of tillage on the response of two corn hybrids (Zea mays) to soil K fertility”
e1“Potassium treatment did not affect grain yields”
Claim · model-written summary
The authors conclude that K fertility recommendations for moldboard plow systems are adequate for reduced tillage corn systems.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- K fertility recommendationse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to determine the effect of tillage on the response of two corn hybrids (Zea mays) to soil K fertility”
e1“K fertility recommendations developed for moldboard plow systems are adequate for reduced tillage systems”
The same questions in other papers
tillage · yield · Zea mays (maize)Positive and negative results
286 papers in the same direction as this paper · 812 in the opposite direction
- positive
- positive
- positive
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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.