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
Claim · model-written summary
Humic substances showed varying effects on soil characteristics across seasons.
- Taxon
- Bread Wheat
Triticum 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.

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.”
t0“Bread Wheat”
Claim · model-written summary
SOM increased under humic treatment in the first year.
- Taxon
- Bread Wheat
Triticum 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.

Verbatim
e0“The levels of SOM, available phosphorus, and grain yield significantly increased under different humic treatments in the first year of the experiment.”
t0“Bread Wheat”
Claim · model-written summary
available phosphorus increased under humic treatment in the first year.
- Taxon
- Bread Wheat
Triticum 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.

Verbatim
e0“The levels of SOM, available phosphorus, and grain yield significantly increased under different humic treatments in the first year of the experiment.”
t0“Bread Wheat”
Claim · model-written summary
grain yield increased under humic treatment in the first year.
- Taxon
- Bread Wheat
Triticum 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.

Verbatim
e0“The levels of SOM, available phosphorus, and grain yield significantly increased under different humic treatments in the first year of the experiment.”
t0“Bread Wheat”
Claim · model-written summary
Humic substances did not affect selected soil parameters in the second year.
- Taxon
- Bread Wheat
Triticum 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.

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.”
t0“Bread Wheat”
Claim · model-written summary
Humic substances did not affect macro- and micronutrient status in the second year.
- Taxon
- Bread Wheat
Triticum 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.

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.”
t0“Bread Wheat”
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