Abstract
Abstract In the apple orchard, trees fertilized with calcium nitrate resulted in the highest soil pH (6.4) whereas the lowest pH (4.7 and 4.6) occurred with ammonium nitrate and with mono‐ammonium phosphate (MAP) applications, respectively. Soil pH values were lowest with the high rates of nitrogen (N) fertilizers. Red skin color of ‘Delicious’ apples was generally improved with calcium nitrate fertilization, higher soil pH values, and with lower fruit manganese (Mn) concentrations or with lower N fertilizer rates. Incidence of bitter pit was lowest for trees fertilized with ammonium nitrate or calcium nitrate. In the pear orchard, the lowest soil pH (4.2) occurred when trees were fertilized with the high rate of MAP and the highest soil pH (4.8) occurred with the high rate of calcium nitrate applications. Fruit size was slightly smaller on trees fertilized with the high rate of MAP. Lowest incidence of superficial cork or green stain fruit disorders occurred on trees receiving the high rate of calcium nitrate. Fruit quality and mineral nutrient composition of leaves and fruit were determined for apples and pears.
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 14
Claim · model-written summary
Calcium nitrate gave the highest apple orchard soil pH of 6.4.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the apple orchard, trees fertilized with calcium nitrate resulted in the highest soil pH (6.4)”
Claim · model-written summary
Ammonium nitrate gave apple orchard soil pH of 4.7, among the lowest.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest pH (4.7 and 4.6) occurred with ammonium nitrate and with mono‐ammonium phosphate (MAP) applications, respectively.”
t0“apple and pear trees”
Claim · model-written summary
Mono‐ammonium phosphate gave apple orchard soil pH of 4.6, among the lowest.
- Taxon
- apple
Malus domesticat0 - Treatment
- mono‐ammonium phosphate (MAP)e0
- Outcome
- pHe0
- Direction
- loweste0
- Value
- 4.6e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest pH (4.7 and 4.6) occurred with ammonium nitrate and with mono‐ammonium phosphate (MAP) applications, respectively.”
t0“apple and pear trees”
Claim · model-written summary
Higher nitrogen fertilizer rates gave the lowest soil pH.
- Taxon
- appleMalus domesticat0
- Treatment
- high rates of nitrogen (N) fertilizerse0
- Outcome
- Soil pH valuese0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil pH values were lowest with the high rates of nitrogen (N) fertilizers.”
t0“apple and pear trees”
Claim · model-written summary
Calcium nitrate generally improved Delicious apple red skin color.
- Taxon
- applesMalus domesticae0
- Material
- Deliciouse0
- Treatment
- calcium nitrate fertilizatione0
- Outcome
- Red skin colore0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Red skin color of ‘Delicious’ apples was generally improved with calcium nitrate fertilization”
Claim · model-written summary
Higher soil pH was associated with improved Delicious apple red skin color.
- Taxon
- applesMalus domesticae0
- Material
- Deliciouse0
- Outcome
- Red skin colore0
- Direction
- improvede0
- Setting
- higher soil pH valuese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Red skin color of ‘Delicious’ apples was generally improved with calcium nitrate fertilization, higher soil pH values”
Claim · model-written summary
Lower fruit manganese concentrations were associated with improved Delicious apple red skin color.
- Taxon
- applesMalus domesticae0
- Material
- Deliciouse0
- Compound
- manganese (Mn)e0
- Outcome
- Red skin colore0
- Direction
- improvede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Red skin color of ‘Delicious’ apples was generally improved with calcium nitrate fertilization, higher soil pH values, and with lower fruit manganese (Mn) concentrations”
Claim · model-written summary
Lower nitrogen fertilizer rates were associated with improved Delicious apple red skin color.
- Taxon
- applesMalus domesticae0
- Material
- Deliciouse0
- Treatment
- lower N fertilizer ratese0
- Outcome
- Red skin colore0
- Direction
- improvede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Red skin color of ‘Delicious’ apples was generally improved with calcium nitrate fertilization, higher soil pH values, and with lower fruit manganese (Mn) concentrations or with lower N fertilizer rates.”
Claim · model-written summary
Ammonium nitrate gave the lowest bitter pit incidence in apple.
- Taxon
- appleMalus domesticat0
- Treatment
- ammonium nitratee0
- Outcome
- Incidence of bitter pite0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incidence of bitter pit was lowest for trees fertilized with ammonium nitrate or calcium nitrate.”
t0“apple and pear trees”
Claim · model-written summary
Calcium nitrate gave the lowest bitter pit incidence in apple.
- Taxon
- appleMalus domesticat0
- Treatment
- calcium nitratee0
- Outcome
- Incidence of bitter pite0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incidence of bitter pit was lowest for trees fertilized with ammonium nitrate or calcium nitrate.”
t0“apple and pear trees”
Claim · model-written summary
High MAP gave the lowest pear orchard soil pH, 4.2.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Poirier_Fleurs_et_feuilles.jpg?width=500)
Verbatim
e0“In the pear orchard, the lowest soil pH (4.2) occurred when trees were fertilized with the high rate of MAP”
Claim · model-written summary
High calcium nitrate gave the highest pear orchard soil pH, 4.8.
- Taxon
- pear
_Poirier_Fleurs_et_feuilles.jpg?width=60)
Pyrus communist0 - Treatment
- high rate of calcium nitrate applicationse0
- Outcome
- soil pHe0
- Direction
- higheste0
- Value
- 4.8e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest soil pH (4.8) occurred with the high rate of calcium nitrate applications.”
t0“apple and pear trees”
Claim · model-written summary
High MAP slightly reduced pear fruit size.
- Taxon
- pearPyrus communist0
- Treatment
- high rate of MAPe0
- Outcome
- Fruit sizee0
- Direction
- smallere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fruit size was slightly smaller on trees fertilized with the high rate of MAP.”
t0“apple and pear trees”
Claim · model-written summary
High calcium nitrate gave the lowest superficial cork or green stain incidence in pear.
- Taxon
- pearPyrus communist0
- Treatment
- high rate of calcium nitratee0
- Outcome
- incidence of superficial cork or green stain fruit disorderse0
- Direction
- Loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lowest incidence of superficial cork or green stain fruit disorders occurred on trees receiving the high rate of calcium nitrate.”
t0“apple and pear trees”
The same questions in other papers
ammonium nitrate · disease · Malus domestica (apple)Positive and negative results
1 in the opposite direction
- no effect
ammonium dihydrogen phosphate · yield · Pyrus communis (pear)Positive and negative results
1 in the opposite direction
- positive
calcium nitrate · quality: postharvest · Malus domestica (apple)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
calcium nitrate · disease · Malus domestica (apple)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
fertilization · quality: postharvest · Malus domestica (apple)Positive and negative results
17 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
22 papers more in this group
See all 26 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.