Paper · 2007 · Agro-Science

Influence of liming on the performance of high-yielding soybean varieties in southeastern Nigeria

D Okpara; C O Muoneke; N Ihediwa

8
claims
16
verbatim quotes
6
citations
4
research areas
✓
Open access · cc-by

Abstract

Field experiments were conducted during the 2003 and 2004 cropping seasons at Umudike, Southeastern Nigeria, to assess the effect of liming on the performance of four high yielding soybean [Glycine max (L.) Merril] varieties (early maturing TGX 1485-1D, TGX 1799-8F, TGX 1805-8F and medium maturing TGX 1440-1E). In each year, the experiment was laid out as a split plot in a randomized complete block design using three replications. Five lime rates of 0, 0.5, 1.0, 1.5 and 2.0 t/ha were applied to the main plots while the four soybean varieties were planted in the sub-plots. Liming significantly increased soil pH, number of nodules and number of pods per plant and grain yield, especially in 2004 but did not significantly influence plant height, shoot dry matter, days to 50% flowering and 100-seed weight. The 1.0 t/ha lime rate proved to be optimum and is thus recommended for high grain yield in soybean. Mean grain yield at 1.0 t/ha lime rates was higher than the yield in the control (no lime) by 66%. The medium maturing TGX 1440-1E gave, on the average, significantly higher number of leaves and number of pods per plant and grain yield than other varieties. There were generally no significant effects of lime and crop variety interactions on soybean growth and yield. Agro-Science Vol. 6 (2) 2007: pp. 16-24

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 8

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Liming significantly increased the number of nodules, number of pods per plant and grain yield of soybean, especially in 2004.

Taxon
soybeanGlycine maxe0
Treatment
Liminge1
Outcome
number of nodules and number of pods per plant and grain yielde1
Direction
increasede1
Qualifier
especially in 2004e1
Comparator
control (no lime)e3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Field experiments were conducted during the 2003 and 2004 cropping seasons at Umudike, Southeastern Nigeria, to assess the effect of liming on the performance of four high yielding soybean [Glycine max (L.) Merril] varieties”

✓ located verbatim in the source · abstract, characters 0–224 · show in text ↑
e1

“Liming significantly increased soil pH, number of nodules and number of pods per plant and grain yield, especially in 2004 but did not significantly influence plant height, shoot dry matter, days to 50% flowering and 100-seed weight”

✓ located verbatim in the source · abstract, characters 579–811 · show in text ↑
e3

“Mean grain yield at 1.0 t/ha lime rates was higher than the yield in the control (no lime) by 66%”

✓ located verbatim in the source · abstract, characters 914–1011 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Liming significantly increased soil pH in the soybean field experiments.

Taxon
soybeanGlycine maxe0
Treatment
Liminge1
Outcome
soil pHe1
Direction
increasede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Field experiments were conducted during the 2003 and 2004 cropping seasons at Umudike, Southeastern Nigeria, to assess the effect of liming on the performance of four high yielding soybean [Glycine max (L.) Merril] varieties”

✓ located verbatim in the source · abstract, characters 0–224 · show in text ↑
e1

“Liming significantly increased soil pH, number of nodules and number of pods per plant and grain yield, especially in 2004 but did not significantly influence plant height, shoot dry matter, days to 50% flowering and 100-seed weight”

✓ located verbatim in the source · abstract, characters 579–811 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Liming did not significantly influence plant height, shoot dry matter or days to 50% flowering of soybean.

Taxon
soybeanGlycine maxe0
Treatment
Liminge1
Outcome
plant height, shoot dry matter, days to 50% floweringe1
Direction
no_changeinferrede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Field experiments were conducted during the 2003 and 2004 cropping seasons at Umudike, Southeastern Nigeria, to assess the effect of liming on the performance of four high yielding soybean [Glycine max (L.) Merril] varieties”

✓ located verbatim in the source · abstract, characters 0–224 · show in text ↑
e1

“Liming significantly increased soil pH, number of nodules and number of pods per plant and grain yield, especially in 2004 but did not significantly influence plant height, shoot dry matter, days to 50% flowering and 100-seed weight”

✓ located verbatim in the source · abstract, characters 579–811 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Liming did not significantly influence the 100-seed weight of soybean.

Taxon
soybeanGlycine maxe0
Treatment
Liminge1
Outcome
100-seed weighte1
Direction
no_changeinferrede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Field experiments were conducted during the 2003 and 2004 cropping seasons at Umudike, Southeastern Nigeria, to assess the effect of liming on the performance of four high yielding soybean [Glycine max (L.) Merril] varieties”

✓ located verbatim in the source · abstract, characters 0–224 · show in text ↑
e1

“Liming significantly increased soil pH, number of nodules and number of pods per plant and grain yield, especially in 2004 but did not significantly influence plant height, shoot dry matter, days to 50% flowering and 100-seed weight”

✓ located verbatim in the source · abstract, characters 579–811 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

A lime rate of 1.0 t/ha is optimum and recommended for high grain yield in soybean.

Taxon
soybeanGlycine maxe2
Treatment
1.0 t/ha lime ratee2
Outcome
high grain yielde2
Value
1.0 t/hae2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e2

“The 1.0 t/ha lime rate proved to be optimum and is thus recommended for high grain yield in soybean”

✓ located verbatim in the source · abstract, characters 813–912 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mean grain yield at 1.0 t/ha lime was 66% higher than in the control without lime.

Taxon
soybeanGlycine maxe0
Treatment
1.0 t/ha lime ratese3
Outcome
Mean grain yielde3
Direction
highere3
Value
66%e3
Comparator
control (no lime)e3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Field experiments were conducted during the 2003 and 2004 cropping seasons at Umudike, Southeastern Nigeria, to assess the effect of liming on the performance of four high yielding soybean [Glycine max (L.) Merril] varieties”

✓ located verbatim in the source · abstract, characters 0–224 · show in text ↑
e3

“Mean grain yield at 1.0 t/ha lime rates was higher than the yield in the control (no lime) by 66%”

✓ located verbatim in the source · abstract, characters 914–1011 · show in text ↑
Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Medium maturing cultivar TGX 1440-1E had significantly higher number of leaves, number of pods per plant and grain yield than other varieties.

Taxon
soybeanGlycine maxe0
Material
TGX 1440-1Ee4
Outcome
number of leaves and number of pods per plant and grain yielde4
Direction
highere4
Comparator
other varietiese4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Field experiments were conducted during the 2003 and 2004 cropping seasons at Umudike, Southeastern Nigeria, to assess the effect of liming on the performance of four high yielding soybean [Glycine max (L.) Merril] varieties”

✓ located verbatim in the source · abstract, characters 0–224 · show in text ↑
e4

“The medium maturing TGX 1440-1E gave, on the average, significantly higher number of leaves and number of pods per plant and grain yield than other varieties”

✓ located verbatim in the source · abstract, characters 1013–1170 · show in text ↑
Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Lime and crop variety interactions had no significant effect on soybean growth and yield.

Taxon
soybeanGlycine maxe5
Treatment
lime and crop variety interactionse5
Outcome
growth and yielde5
Direction
no_changeinferrede5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Field experiments were conducted during the 2003 and 2004 cropping seasons at Umudike, Southeastern Nigeria, to assess the effect of liming on the performance of four high yielding soybean [Glycine max (L.) Merril] varieties”

✓ located verbatim in the source · abstract, characters 0–224 · show in text ↑
e5

“There were generally no significant effects of lime and crop variety interactions on soybean growth and yield”

✓ located verbatim in the source · abstract, characters 1172–1281 · show in text ↑

lime · growth · Glycine max (soybean)Results differ

34 papers: 29 positive, 5 negative or no effect

4 papers in the same direction as this paper · 29 in the opposite direction

  1. positive
  2. positive
  3. positive

30 papers more in this group

See all 34 papers →

lime · soil: chemistry · Glycine max (soybean)Positive and negative results

29 papers: 28 positive, 1 negative or no effect

27 papers in the same direction as this paper · 1 reporting no difference from an alternative

  1. no effect
  2. positive
  3. positive

25 papers more in this group

See all 29 papers →

lime · yield · Glycine max (soybean)Positive and negative results

141 papers: 108 positive, 33 negative or no effect

107 papers in the same direction as this paper · 31 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

137 papers more in this group

See all 141 papers →

lime · symbiosis · Glycine max (soybean)Results agree

17 papers: 17 positive, 0 negative or no effect

16 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

13 papers more in this group

See all 17 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.