Abstract
Abstract Soils with unfavourable characteristics (pronounced acidity, disturbed structure, compaction, exhaustion, tiredness, etc.) cover a considerable area of Serbia. Specific crops, the fruit ones in particular, are being grown on these soils, yielding, however, considerably lower yields. The paper presents results of two‐year studies on the effect of natural zeolites, organic fertiliser—cattle manure and mineral NPK fertiliser (15:15:15) on soil properties and fruit yield and fruit properties of strawberry and blackberry plants grown on shallow eroded vertisol. The results have shown that the chemical properties of the soil improved with the natural zeolite ‘Agrozel’ (1 kg m −2 ) + Manure (1 kg m −2 ) treatment—resulting in a 0·94‐unit acidity decrease and a 0·58% humus content increase at a 0–20 cm soil depth. Positive but less pronounced changes were also detected at greater soil depths. The strawberry and blackberry cultivation in these soils using the above substances gave rise to a yield increase. In the second year of study, strawberry and blackberry yields increased by 13·15% and 6·27%, respectively. Basic chemical properties of strawberry and blackberry fruits (soluble solids and total acid contents) were not significantly affected by zeolite and organic fertiliser additions to the soil. Copyright © 2008 John Wiley & Sons, Ltd.
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Claims 6
Claim · model-written summary
Natural zeolite plus manure decreased soil acidity by 0.94 units.
- Treatment
- natural zeolite ‘Agrozel’ (1 kg m −2 ) + Manure (1 kg m −2 )e0
- Outcome
- aciditye0
- Direction
- decreasee0
- Value
- 0·94‐unite0
Not reportedTaxonComparator
Verbatim
e0“the chemical properties of the soil improved with the natural zeolite ‘Agrozel’ (1 kg m −2 ) + Manure (1 kg m −2 ) treatment—resulting in a 0·94‐unit acidity decrease”
Claim · model-written summary
Natural zeolite plus manure increased soil humus content by 0.58%.
- Treatment
- natural zeolite ‘Agrozel’ (1 kg m −2 ) + Manure (1 kg m −2 )e0
- Outcome
- humus contente1
- Direction
- increasee1
- Value
- 0·58%e1
- Setting
- 0–20 cm soil depthe1
Not reportedTaxonComparator
Verbatim
e0“the chemical properties of the soil improved with the natural zeolite ‘Agrozel’ (1 kg m −2 ) + Manure (1 kg m −2 ) treatment—resulting in a 0·94‐unit acidity decrease”
e1“a 0·58% humus content increase at a 0–20 cm soil depth”
Claim · model-written summary
Strawberry yield increased by 13.15% in the second year under zeolite and manure treatment.
- Taxon
- strawberry
Fragaria ×ananassae2 - Treatment
- natural zeolite ‘Agrozel’ (1 kg m −2 ) + Manure (1 kg m −2 )e0
- Outcome
- yieldse2
- Direction
- increasede2
- Value
- 13·15%e2
- Qualifier
- In the second year of studye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“the chemical properties of the soil improved with the natural zeolite ‘Agrozel’ (1 kg m −2 ) + Manure (1 kg m −2 ) treatment—resulting in a 0·94‐unit acidity decrease”
e2“In the second year of study, strawberry and blackberry yields increased by 13·15% and 6·27%, respectively”
Claim · model-written summary
Blackberry yield increased by 6.27% in the second year under zeolite and manure treatment.
- Treatment
- natural zeolite ‘Agrozel’ (1 kg m −2 ) + Manure (1 kg m −2 )e0
- Outcome
- yieldse2
- Direction
- increasede2
- Value
- 6·27%e2
- Qualifier
- In the second year of studye2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the chemical properties of the soil improved with the natural zeolite ‘Agrozel’ (1 kg m −2 ) + Manure (1 kg m −2 ) treatment—resulting in a 0·94‐unit acidity decrease”
e2“In the second year of study, strawberry and blackberry yields increased by 13·15% and 6·27%, respectively”
Claim · model-written summary
Zeolite and organic fertiliser additions did not significantly affect soluble solids or total acid contents of strawberry fruit.
- Taxon
- strawberry
Fragaria ×ananassae3 - Organ / stage
- fruitse3
- Treatment
- zeolite and organic fertiliser additions to the soile3
- Outcome
- soluble solids and total acid contentse3
- Direction
- no_changeinferrede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e3“Basic chemical properties of strawberry and blackberry fruits (soluble solids and total acid contents) were not significantly affected by zeolite and organic fertiliser additions to the soil”
Claim · model-written summary
Zeolite and organic fertiliser additions did not significantly affect soluble solids or total acid contents of blackberry fruit.
- Organ / stage
- fruitse3
- Treatment
- zeolite and organic fertiliser additions to the soile3
- Outcome
- soluble solids and total acid contentse3
- Direction
- no_changeinferrede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“Basic chemical properties of strawberry and blackberry fruits (soluble solids and total acid contents) were not significantly affected by zeolite and organic fertiliser additions to the soil”
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