Abstract
Abstract Effects of soil pH, tillage practices, P application, and the addition of clay at the planting site on tree size, fruit yield, fruit size, and tree longevity of peaches [ Prunus persica (L.) Batsch] for 20 growing seasons are reported. Because of widespread tree death, ‘Loring’ trees were removed after 9 years and the orchard replanted to ‘Winblo’. Soil pH below 5.6 resulted in poor tree growth, low fruit yield, and small fruit size compared to trees grown in soils at higher pH. In the final 10 years of the experiment, marked improvement in tree size, fruit yield, fruit size, and longevity were evident as soil pH increased. The effect of 3 tillage practices—normal plow to a depth of 20 cm, normal plow to a depth of 20 cm plus a 75-cm-diameter ⨯ 122-cm-deep hole at the planting site, and deep plowing to a depth of 58 cm—varied with cultivar. Both methods of soil profile modification (which penetrated the A 2 horizon) resulted in increased yield and tree size compared to normal plowing to 20 cm with ‘Loring’ during the first 9 years. During the final 10 years, fruit yield was lower and tree death greater in the deep-plow plots, but there were no differences in fruit yield, tree size, or tree longevity between the other tillage treatments. Phosphorus rates (0, 15, and 30 kg/ha annually) or clay additions did not influence tree size, fruit yield, or tree survival. Results of this study lend strong support for the maintenance of soil pH above 5.6 and good evidence that increase in tree growth, fruit yield, and tree longevity is further enhanced when soil pH is maintained above 6.0.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 12
Claim · model-written summary
Soil pH below 5.6 caused poorer peach tree growth than higher pH.
- Taxon
- peaches
Prunus persicae1 - Treatment
- Soil pH below 5.6e0
- Outcome
- tree growthe0
- Direction
- poore0
- Comparator
- higher pHe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil pH below 5.6 resulted in poor tree growth, low fruit yield, and small fruit size compared to trees grown in soils at higher pH.”
e1“peaches [ Prunus persica (L.) Batsch]”
Claim · model-written summary
Soil pH below 5.6 caused lower peach fruit yield than higher pH.
- Taxon
- PeachPrunus persicat0
- Treatment
- Soil pH below 5.6e0
- Outcome
- fruit yielde0
- Direction
- lowe0
- Comparator
- higher pHe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil pH below 5.6 resulted in poor tree growth, low fruit yield, and small fruit size compared to trees grown in soils at higher pH.”
t0“Peach Tree”
Claim · model-written summary
Soil pH below 5.6 caused smaller peach fruit than higher pH.
- Taxon
- PeachPrunus persicat0
- Treatment
- Soil pH below 5.6e0
- Outcome
- fruit sizee0
- Direction
- smalle0
- Comparator
- higher pHe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil pH below 5.6 resulted in poor tree growth, low fruit yield, and small fruit size compared to trees grown in soils at higher pH.”
t0“Peach Tree”
Claim · model-written summary
Increasing soil pH improved peach tree size, fruit yield, fruit size and longevity in the final ten years.
- Taxon
- PeachPrunus persicat0
- Treatment
- soil pHe0
- Outcome
- tree size, fruit yield, fruit size, and longevitye0
- Direction
- improvemente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the final 10 years of the experiment, marked improvement in tree size, fruit yield, fruit size, and longevity were evident as soil pH increased.”
t0“Peach Tree”
Claim · model-written summary
Soil profile modification increased Loring peach yield relative to normal plowing.
- Taxon
- PeachPrunus persicat0
- Material
- ‘Loring’e0
- Treatment
- soil profile modificatione0
- Outcome
- yielde0
- Direction
- increasede0
- Comparator
- normal plowing to 20 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both methods of soil profile modification (which penetrated the A 2 horizon) resulted in increased yield and tree size compared to normal plowing to 20 cm with ‘Loring’ during the first 9 years.”
t0“Peach Tree”
Claim · model-written summary
Soil profile modification increased Loring peach tree size relative to normal plowing.
- Taxon
- PeachPrunus persicat0
- Material
- ‘Loring’e0
- Treatment
- soil profile modificatione0
- Outcome
- tree sizee0
- Direction
- increasede0
- Comparator
- normal plowing to 20 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both methods of soil profile modification (which penetrated the A 2 horizon) resulted in increased yield and tree size compared to normal plowing to 20 cm with ‘Loring’ during the first 9 years.”
t0“Peach Tree”
Claim · model-written summary
Deep plowing lowered peach fruit yield in the final ten years.
- Taxon
- PeachPrunus persicat0
- Treatment
- deep-plowe0
- Outcome
- fruit yielde0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the final 10 years, fruit yield was lower and tree death greater in the deep-plow plots”
t0“Peach Tree”
Claim · model-written summary
Deep plowing increased peach tree death in the final ten years.
- Taxon
- PeachPrunus persicat0
- Treatment
- deep-plowe0
- Outcome
- tree deathe0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the final 10 years, fruit yield was lower and tree death greater in the deep-plow plots”
t0“Peach Tree”
Claim · model-written summary
Other tillage treatments did not differ in yield, tree size or longevity in the final ten years.
- Taxon
- PeachPrunus persicat0
- Treatment
- other tillage treatmentse0
- Outcome
- fruit yield, tree size, or tree longevitye0
- Direction
- no differencese0
- Comparator
- other tillage treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no differences in fruit yield, tree size, or tree longevity between the other tillage treatments.”
t0“Peach Tree”
Claim · model-written summary
Phosphorus rates did not affect peach tree size, yield or survival.
- Taxon
- PeachPrunus persicat0
- Treatment
- Phosphorus rates (0, 15, and 30 kg/ha annually)e0
- Outcome
- tree size, fruit yield, or tree survivale0
- Direction
- did not influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus rates (0, 15, and 30 kg/ha annually) or clay additions did not influence tree size, fruit yield, or tree survival.”
t0“Peach Tree”
Claim · model-written summary
Clay additions did not affect peach tree size, yield or survival.
- Taxon
- PeachPrunus persicat0
- Treatment
- clay additionse0
- Outcome
- tree size, fruit yield, or tree survivale0
- Direction
- did not influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus rates (0, 15, and 30 kg/ha annually) or clay additions did not influence tree size, fruit yield, or tree survival.”
t0“Peach Tree”
Claim · model-written summary
The authors support maintaining peach soil pH above 5.6, with further benefit above 6.0.
- Taxon
- PeachPrunus persicat0
- Outcome
- maintenance of soil pH above 5.6e0
- Qualifier
- soil pH is maintained above 6.0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results of this study lend strong support for the maintenance of soil pH above 5.6 and good evidence that increase in tree growth, fruit yield, and tree longevity is further enhanced when soil pH is maintained above 6.0.”
t0“Peach Tree”
The same questions in other papers
ph · growth · Prunus persica (peach)Positive and negative results
1 in the opposite direction
- positive
phosphorus · yield · Prunus persica (peach)Positive and negative results
1 paper in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
4 papers more in this group
See all 8 papers →tillage · pest · Prunus persica (peach)Results agree
1 paper in the same direction as this paper
- no effect
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.