Abstract
15N tracer elements were used to study the effects of fertilization either using a fertilizer applicator or broadcast application in the radial ditch(CK) on nitrogen absorption,utilization,and distribution,and fruit quality and yield of five-year-old trees of the early-maturing peach 'Yuhualu' and ten-year-old trees of the late-maturing cultivar 'Chinese Peach'.After fertilization with the fertilizer applicator,the percentage nitrogen derived from fertilizer(Ndff%) of new shoot leaves increased significantly from the new shoot growth stage and throughout the growing season the Ndff% and chlorophyll content of new shoot leaves were maintained at high levels,while the growth rate of new shoots was accelerated significantly at the new shoot growth stage.After the fruits were harvested,the Ndff% of the fruit flesh and stone were 3.64 and 4.73 times higher,respectively,than those of CK.The nitrogen absorptivity of the plant was 20.35% at the end of the growing season,which increased 5.87 percentage points than that of CK.These results indicated nitrogen was absorbed more quickly and transported to newly developing organs following fertilization with the fertilizer applicator and,in addition,nitrogen utilization efficiency was significantly improved.After fertilization with the fertilizer applicator,the percentage residual nitrogen fertilizer was 49.33%,whereas with broadcast fertilization in the radial ditch,the residual nitrogen fertilizer was 50.46%;the difference between the two methods was not significant.Fertilization with the fertilizer applicator was beneficial to improve yield and the soluble solids content of peach fruit.Provided with 1000 kg/ha compound fertilizer applied with the fertilizer applicator each year,the soluble solids content of peach fruit was 14.14% and the fruit yield was 26780 kg/ha,respectively,an increase of 3.31 percentage points and 3525 kg/ha over that of CK(1250 kg/ha).
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Claims 13
Claim · model-written summary
Fertilizer applicator increased the nitrogen derived from fertilizer in new shoot leaves compared with broadcast application.
- Taxon
- peach
Prunus persicae1 - Organ / stage
- new shoot leavese0
- Treatment
- fertilizer applicatore0
- Outcome
- percentage nitrogen derived from fertilizer(Ndff%)e0
- Direction
- increasede0
- Comparator
- broadcast application in the radial ditch(CK)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After fertilization with the fertilizer applicator, the percentage nitrogen derived from fertilizer(Ndff%) of new shoot leaves increased significantly from the new shoot growth stage”
e1“five-year-old trees of the early-maturing peach 'Yuhualu'”
e2“broadcast application in the radial ditch(CK)”
Claim · model-written summary
Ndff% of peach fruit flesh was 3.64 times that of the control.
- Taxon
- peachPrunus persicae2
- Organ / stage
- fruit fleshe1
- Treatment
- fertilizer applicatore0
- Outcome
- Ndff%e1
- Direction
- highere1
- Value
- 3.64e1
- Comparator
- CKe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After fertilization with the fertilizer applicator, the percentage nitrogen derived from fertilizer(Ndff%) of new shoot leaves increased significantly from the new shoot growth stage”
e1“the Ndff% of the fruit flesh and stone were 3.64 and 4.73 times higher,respectively,than those of CK”
e2“five-year-old trees of the early-maturing peach 'Yuhualu'”
Claim · model-written summary
Ndff% of peach stone was 4.73 times that of the control.
- Taxon
- peachPrunus persicae2
- Organ / stage
- stonee1
- Treatment
- fertilizer applicatore0
- Outcome
- Ndff%e1
- Direction
- highere1
- Value
- 4.73e1
- Comparator
- CKe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After fertilization with the fertilizer applicator, the percentage nitrogen derived from fertilizer(Ndff%) of new shoot leaves increased significantly from the new shoot growth stage”
e1“the Ndff% of the fruit flesh and stone were 3.64 and 4.73 times higher,respectively,than those of CK”
e2“five-year-old trees of the early-maturing peach 'Yuhualu'”
Claim · model-written summary
Fertilizer applicator increased nitrogen absorptivity of the peach plant by 5.87 percentage points over CK.
- Taxon
- peachPrunus persicae2
- Treatment
- fertilizer applicatore0
- Outcome
- nitrogen absorptivitye1
- Direction
- increasede1
- Value
- 5.87 percentage pointse1
- Comparator
- CKe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After fertilization with the fertilizer applicator, the percentage nitrogen derived from fertilizer(Ndff%) of new shoot leaves increased significantly from the new shoot growth stage”
e1“The nitrogen absorptivity of the plant was 20.35% at the end of the growing season,which increased 5.87 percentage points than that of CK”
e2“five-year-old trees of the early-maturing peach 'Yuhualu'”
Claim · model-written summary
Nitrogen absorptivity of peach was 20.35% at the end of the growing season.
- Taxon
- peachPrunus persicae1
- Outcome
- nitrogen absorptivitye0
- Value
- 20.35%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nitrogen absorptivity of the plant was 20.35% at the end of the growing season,which increased 5.87 percentage points than that of CK”
e1“five-year-old trees of the early-maturing peach 'Yuhualu'”
Claim · model-written summary
Fertilizer applicator significantly improved nitrogen utilization efficiency of peach.
- Taxon
- peachPrunus persicae2
- Treatment
- fertilizer applicatore0
- Outcome
- nitrogen utilization efficiencye1
- Direction
- improvede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After fertilization with the fertilizer applicator, the percentage nitrogen derived from fertilizer(Ndff%) of new shoot leaves increased significantly from the new shoot growth stage”
e1“nitrogen utilization efficiency was significantly improved”
e2“five-year-old trees of the early-maturing peach 'Yuhualu'”
Claim · model-written summary
Fertilizer applicator did not significantly change residual nitrogen fertilizer compared with broadcast application (49.33% vs 50.46%).
- Taxon
- peachPrunus persicae3
- Treatment
- fertilizer applicatore0
- Outcome
- percentage residual nitrogen fertilizere0
- Value
- 49.33%e0
- Comparator
- broadcast fertilization in the radial ditche2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After fertilization with the fertilizer applicator,the percentage residual nitrogen fertilizer was 49.33%”
e1“the difference between the two methods was not significant”
e2“whereas with broadcast fertilization in the radial ditch”
e3“five-year-old trees of the early-maturing peach 'Yuhualu'”
Claim · model-written summary
Fertilizer applicator with 1000 kg/ha compound fertilizer increased soluble solids content of peach fruit by 3.31 percentage points over CK.
- Taxon
- peachPrunus persicae3
- Treatment
- 1000 kg/ha compound fertilizer applied with the fertilizer applicator each yeare2
- Outcome
- soluble solids content of peach fruite0
- Direction
- increasee1
- Value
- 3.31 percentage pointse1
- Comparator
- CKe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization with the fertilizer applicator was beneficial to improve yield and the soluble solids content of peach fruit”
e1“an increase of 3.31 percentage points and 3525 kg/ha over that of CK(1250 kg/ha)”
e2“Provided with 1000 kg/ha compound fertilizer applied with the fertilizer applicator each year”
e3“five-year-old trees of the early-maturing peach 'Yuhualu'”
Claim · model-written summary
Fertilizer applicator with 1000 kg/ha compound fertilizer increased peach fruit yield by 3525 kg/ha over CK.
- Taxon
- peachPrunus persicae3
- Treatment
- 1000 kg/ha compound fertilizer applied with the fertilizer applicator each yeare1
- Outcome
- fruit yielde2
- Direction
- increasee0
- Value
- 3525 kg/hae0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an increase of 3.31 percentage points and 3525 kg/ha over that of CK(1250 kg/ha)”
e1“Provided with 1000 kg/ha compound fertilizer applied with the fertilizer applicator each year”
e2“the fruit yield was 26780 kg/ha”
e3“five-year-old trees of the early-maturing peach 'Yuhualu'”
Claim · model-written summary
Peach fruit yield under fertilizer applicator with 1000 kg/ha compound fertilizer was 26780 kg/ha.
- Taxon
- peachPrunus persicae2
- Treatment
- 1000 kg/ha compound fertilizer applied with the fertilizer applicator each yeare0
- Outcome
- fruit yielde1
- Value
- 26780 kg/hae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Provided with 1000 kg/ha compound fertilizer applied with the fertilizer applicator each year”
e1“the fruit yield was 26780 kg/ha”
e2“five-year-old trees of the early-maturing peach 'Yuhualu'”
Claim · model-written summary
Peach fruit soluble solids content was 14.14% under fertilizer applicator with 1000 kg/ha compound fertilizer.
- Taxon
- peachPrunus persicae1
- Outcome
- soluble solids content of peach fruite0
- Value
- 14.14%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soluble solids content of peach fruit was 14.14%”
e1“five-year-old trees of the early-maturing peach 'Yuhualu'”
Claim · model-written summary
Growth rate of new shoots was accelerated significantly by the fertilizer applicator.
- Taxon
- peachPrunus persicae2
- Treatment
- fertilizer applicatore0
- Outcome
- growth rate of new shootse1
- Direction
- acceleratede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After fertilization with the fertilizer applicator, the percentage nitrogen derived from fertilizer(Ndff%) of new shoot leaves increased significantly from the new shoot growth stage”
e1“the growth rate of new shoots was accelerated significantly at the new shoot growth stage”
e2“five-year-old trees of the early-maturing peach 'Yuhualu'”
Claim · model-written summary
Ndff% and chlorophyll content of new shoot leaves were maintained at high levels under the fertilizer applicator.
- Taxon
- peachPrunus persicae2
- Treatment
- fertilizer applicatore0
- Outcome
- chlorophyll content of new shoot leavese1
- Direction
- maintained at high levelse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After fertilization with the fertilizer applicator, the percentage nitrogen derived from fertilizer(Ndff%) of new shoot leaves increased significantly from the new shoot growth stage”
e1“the Ndff% and chlorophyll content of new shoot leaves were maintained at high levels”
e2“five-year-old trees of the early-maturing peach 'Yuhualu'”
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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.