Abstract
A plastic-house experiment was carried out during fall season 2004/2005 at the Agricultural Research Station, Mu’tah University, Al-Karak, Jordan, to study the effect of organic and chemical fertilizers on fruit yield and quality of strawberry. Treatments consisted of two levels of organic fertilizer (0 and 40 ton/ha) and four levels of chemical fertilizer (0, 20, 60 and 100 kg/ha). Strawberry yield was significantly increased by adding organic and/or chemical fertilizer relative to 0 and 20 kg/ha of chemical fertilizer. Fruit number was significantly decreased; average fruit weight and vitamin C content were increased, but TSS % was not affected by adding organic fertilizer. Fresh and dry weights of shoot were significantly increased with organic fertilizer. Leaf- N content was significantly increased with adding organic fertilizer, whereas leaf-P tended to be slightly increased and leaf contents of K, Cu, Mn and Zn were not affected. Organic fertilizer increased soil electrical conductivity (EC) and organic matter content, while soil pH was not affected.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
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 10
Claim · model-written summary
Organic and/or chemical fertilizer significantly increased strawberry yield.
- Taxon
- Strawberry
Fragaria ×ananassae0 - Treatment
- organic and/or chemical fertilizere0
- Outcome
- yielde0
- Direction
- increasede0
- Comparator
- 0 and 20 kg/ha of chemical fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Strawberry yield was significantly increased by adding organic and/or chemical fertilizer relative to 0 and 20 kg/ha of chemical fertilizer.”
Claim · model-written summary
Organic fertilizer significantly decreased fruit number.
- Taxon
- strawberry
Fragaria ×ananassat0 - Treatment
- organic fertilizere0
- Outcome
- Fruit numbere0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Fruit number was significantly decreased; average fruit weight and vitamin C content were increased, but TSS % was not affected by adding organic fertilizer.”
t0“Strawberry”
Claim · model-written summary
Organic fertilizer increased average fruit weight and vitamin C content.
- Taxon
- strawberry
Fragaria ×ananassat0 - Treatment
- organic fertilizere0
- Outcome
- average fruit weight and vitamin C contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Fruit number was significantly decreased; average fruit weight and vitamin C content were increased, but TSS % was not affected by adding organic fertilizer.”
t0“Strawberry”
Claim · model-written summary
Organic fertilizer did not affect TSS %.
- Taxon
- strawberry
Fragaria ×ananassat0 - Treatment
- organic fertilizere0
- Outcome
- TSS %e0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Fruit number was significantly decreased; average fruit weight and vitamin C content were increased, but TSS % was not affected by adding organic fertilizer.”
t0“Strawberry”
Claim · model-written summary
Organic fertilizer significantly increased fresh and dry shoot weight.
- Taxon
- strawberry
Fragaria ×ananassat0 - Treatment
- organic fertilizere0
- Outcome
- Fresh and dry weights of shoote0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Fresh and dry weights of shoot were significantly increased with organic fertilizer.”
t0“Strawberry”
Claim · model-written summary
Organic fertilizer significantly increased leaf N content.
- Taxon
- strawberry
Fragaria ×ananassat0 - Treatment
- organic fertilizere0
- Outcome
- Leaf- N contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Leaf- N content was significantly increased with adding organic fertilizer”
t0“Strawberry”
Claim · model-written summary
Organic fertilizer tended to slightly increase leaf P.
- Taxon
- strawberry
Fragaria ×ananassat0 - Outcome
- leaf-Pe0
- Direction
- increasede0
- Qualifier
- tended to be slightly increasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“leaf-P tended to be slightly increased”
t0“Strawberry”
Claim · model-written summary
Organic fertilizer did not affect leaf K, Cu, Mn and Zn.
- Taxon
- strawberry
Fragaria ×ananassat0 - Outcome
- leaf contents of K, Cu, Mn and Zne0
- Direction
- not affectede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“leaf contents of K, Cu, Mn and Zn were not affected.”
t0“Strawberry”
Claim · model-written summary
Organic fertilizer increased soil electrical conductivity and organic matter content.
- Taxon
- strawberry
Fragaria ×ananassat0 - Treatment
- Organic fertilizere0
- Outcome
- soil electrical conductivity (EC) and organic matter contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Organic fertilizer increased soil electrical conductivity (EC) and organic matter content, while soil pH was not affected.”
t0“Strawberry”
Claim · model-written summary
Organic fertilizer did not affect soil pH.
- Taxon
- strawberry
Fragaria ×ananassat0 - Treatment
- Organic fertilizere0
- Outcome
- soil pHe0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Organic fertilizer increased soil electrical conductivity (EC) and organic matter content, while soil pH was not affected.”
t0“Strawberry”
The same questions in other papers
fertilization · soil: chemistry · Fragaria x ananassa (strawberry)Positive and negative results
13 in the opposite direction
- positive
- positive
- positive
10 papers more in this group
See all 14 papers →fertilization · quality: phytochemicals · Fragaria x ananassa (strawberry)Positive and negative results
40 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- negative
40 papers more in this group
See all 44 papers →fertilization · nutrient: content · Fragaria x ananassa (strawberry)Positive and negative results
44 papers in the same direction as this paper · 14 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- positive
- negative
57 papers more in this group
See all 61 papers →fertilization · quality: sugar starch · Fragaria x ananassa (strawberry)Positive and negative results
8 papers in the same direction as this paper · 74 in the opposite direction
- positive
- positive
- positive
79 papers more in this group
See all 83 papers →fertilization · growth · Fragaria x ananassa (strawberry)Positive and negative results
116 papers in the same direction as this paper · 23 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- positive
137 papers more in this group
See all 141 papers →fertilization · yield · Fragaria x ananassa (strawberry)Positive and negative results
192 papers in the same direction as this paper · 34 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- positive
- positive
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.