Paper · 2008 · Land Degradation and Development

The effect of natural zeolites and organic fertilisers on the characteristics of degraded soils and yield of crops grown in Western Serbia

I. P. Glisic; T. M. Milosevic; I. S. Glisic; et al.

6
claims
9
verbatim quotes
31
citations
3
research areas
—
Not open access

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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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 6

Intervention effectobservedoriginal resultpositivemeasured

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”

✓ located verbatim in the source · abstract, characters 600–766 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

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”

✓ located verbatim in the source · abstract, characters 600–766 · show in text ↑
e1

“a 0·58% humus content increase at a 0–20 cm soil depth”

✓ located verbatim in the source · abstract, characters 771–825 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Strawberry yield increased by 13.15% in the second year under zeolite and manure treatment.

Taxon
strawberryFragaria ×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.

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

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”

✓ located verbatim in the source · abstract, characters 600–766 · show in text ↑
e2

“In the second year of study, strawberry and blackberry yields increased by 13·15% and 6·27%, respectively”

✓ located verbatim in the source · abstract, characters 1022–1127 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Blackberry yield increased by 6.27% in the second year under zeolite and manure treatment.

Taxon
blackberryRubuse2
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.

Rubus
Rubus · Taxon · picture of the genus (one of its species)George Chernilevsky · Public domain · Wikimedia Commons ↗

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”

✓ located verbatim in the source · abstract, characters 600–766 · show in text ↑
e2

“In the second year of study, strawberry and blackberry yields increased by 13·15% and 6·27%, respectively”

✓ located verbatim in the source · abstract, characters 1022–1127 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Zeolite and organic fertiliser additions did not significantly affect soluble solids or total acid contents of strawberry fruit.

Taxon
strawberryFragaria ×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.

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

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”

✓ located verbatim in the source · abstract, characters 1129–1319 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Zeolite and organic fertiliser additions did not significantly affect soluble solids or total acid contents of blackberry fruit.

Taxon
blackberryRubuse3
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.

Rubus
Rubus · Taxon · picture of the genus (one of its species)George Chernilevsky · Public domain · Wikimedia Commons ↗

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”

✓ located verbatim in the source · abstract, characters 1129–1319 · show in text ↑

other · quality: sugar starch · Fragaria x ananassa (strawberry)Results differ

16 papers: 13 positive, 3 negative or no effect

2 papers in the same direction as this paper · 13 in the opposite direction

  1. positive
  2. positive
  3. positive

12 papers more in this group

See all 16 papers →

fertilization · quality: sugar starch · Rubus (bramble)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

fertilization · yield · Rubus (bramble)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive
See all 4 papers →

other · yield · Fragaria x ananassa (strawberry)Positive and negative results

41 papers: 33 positive, 8 negative or no effect

32 papers in the same direction as this paper · 8 in the opposite direction

  1. no effect
  2. negative
  3. no effect

37 papers more in this group

See all 41 papers →

fertilization · quality: sugar starch · Fragaria x ananassa (strawberry)Positive and negative results

83 papers: 74 positive, 9 negative or no effect

8 papers in the same direction as this paper · 74 in the opposite direction

  1. positive
  2. positive
  3. positive

79 papers more in this group

See all 83 papers →

fertilization · yield · Fragaria x ananassa (strawberry)Positive and negative results

229 papers: 193 positive, 36 negative or no effect

192 papers in the same direction as this paper · 34 in the opposite direction · 2 reporting no difference from an alternative

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

225 papers more in this group

See all 229 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.