Paper · 2011 · Communications in Soil Science and Plant Analysis

Effects of Coal- Derived Humic Substance on Some Soil Properties and Bread Wheat Yield

O. C. Turgay; A. Karaca; S. Unver; et al.

6
claims
12
verbatim quotes
45
citations
2
research areas
—
Not open access

Abstract

In the present study, gyttja and its humic–fulvic concentrate were applied to soil either alone or in combination with a chemical fertilizer in a 2-year replicated field experiment with continuous bread wheat cropping during two seasons between 2005 and 2007 in Cukurova, Adana, Turkey. The changes in soil organic matter (SOM) characteristics and available micronutrient status were monitored by soil samplings performed immediately after the harvest in the 2005 and 2006 cropping seasons. The results showed that single and combined applications of humic substances with different types and doses showed different inclinations on selected soil characteristics in consecutive cropping seasons. The levels of SOM, available phosphorus, and grain yield significantly increased under different humic treatments in the first year of the experiment. However, humic substances added to the soil did not affect selected soil parameters and macro- and micronutrient status in the second year of the experiment.

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Claims 6

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Humic substances showed varying effects on soil characteristics across seasons.

Taxon
Bread WheatTriticum aestivumt0
Treatment
single and combined applications of humic substancese0
Outcome
selected soil characteristicse0
Qualifier
consecutive cropping seasonse0

Not reportedComparatorDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The results showed that single and combined applications of humic substances with different types and doses showed different inclinations on selected soil characteristics in consecutive cropping seasons.”

✓ located verbatim in the source · abstract, characters 491–694 · show in text ↑
t0

“Bread Wheat”

✓ located verbatim in the source · title, characters 69–80 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

SOM increased under humic treatment in the first year.

Taxon
Bread WheatTriticum aestivumt0
Treatment
different humic treatmentse0
Outcome
SOMe0
Direction
increasede0
Qualifier
first year of the experimente0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The levels of SOM, available phosphorus, and grain yield significantly increased under different humic treatments in the first year of the experiment.”

✓ located verbatim in the source · abstract, characters 695–845 · show in text ↑
t0

“Bread Wheat”

✓ located verbatim in the source · title, characters 69–80 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

available phosphorus increased under humic treatment in the first year.

Taxon
Bread WheatTriticum aestivumt0
Treatment
different humic treatmentse0
Outcome
available phosphoruse0
Direction
increasede0
Qualifier
first year of the experimente0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The levels of SOM, available phosphorus, and grain yield significantly increased under different humic treatments in the first year of the experiment.”

✓ located verbatim in the source · abstract, characters 695–845 · show in text ↑
t0

“Bread Wheat”

✓ located verbatim in the source · title, characters 69–80 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

grain yield increased under humic treatment in the first year.

Taxon
Bread WheatTriticum aestivumt0
Treatment
different humic treatmentse0
Outcome
grain yielde0
Direction
increasede0
Qualifier
first year of the experimente0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The levels of SOM, available phosphorus, and grain yield significantly increased under different humic treatments in the first year of the experiment.”

✓ located verbatim in the source · abstract, characters 695–845 · show in text ↑
t0

“Bread Wheat”

✓ located verbatim in the source · title, characters 69–80 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Humic substances did not affect selected soil parameters in the second year.

Taxon
Bread WheatTriticum aestivumt0
Treatment
humic substances added to the soile0
Outcome
selected soil parameterse0
Direction
did not affecte0
Qualifier
second year of the experimente0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“However, humic substances added to the soil did not affect selected soil parameters and macro- and micronutrient status in the second year of the experiment.”

✓ located verbatim in the source · abstract, characters 846–1003 · show in text ↑
t0

“Bread Wheat”

✓ located verbatim in the source · title, characters 69–80 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Humic substances did not affect macro- and micronutrient status in the second year.

Taxon
Bread WheatTriticum aestivumt0
Treatment
humic substances added to the soile0
Outcome
macro- and micronutrient statuse0
Direction
did not affecte0
Qualifier
second year of the experimente0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“However, humic substances added to the soil did not affect selected soil parameters and macro- and micronutrient status in the second year of the experiment.”

✓ located verbatim in the source · abstract, characters 846–1003 · show in text ↑
t0

“Bread Wheat”

✓ located verbatim in the source · title, characters 69–80 · show in text ↑

other · nutrient: content · Triticum aestivum (wheat)Positive and negative results

75 papers: 64 positive, 11 negative or no effect

10 papers in the same direction as this paper · 64 in the opposite direction

  1. positive
  2. positive
  3. positive

71 papers more in this group

See all 75 papers →

other · yield · Triticum aestivum (wheat)Positive and negative results

223 papers: 206 positive, 17 negative or no effect

205 papers in the same direction as this paper · 14 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

219 papers more in this group

See all 223 papers →

other · soil: chemistry · Triticum aestivum (wheat)Results agree

24 papers: 24 positive, 0 negative or no effect

23 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

20 papers more in this group

See all 24 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.