Abstract
A three year experiment from 2014 to 2016 was conducted to assess the effect of a nitrification inhibitor (NI) DMPP, and nitrogen (N) application rates in a commercial peach orchard (889 trees ha-1) in a drip irrigated calcareous soil in the Ebro Valley (Lleida, Spain). The mineral content of leaves and fruits, vegetative growth and total yield were monitored each year. A significant effect of NI was observed. Increasing N application rates and the use of NI increased the tree canopy area and N content of the leaves and fruits. The use of NI could be an effective way to minimize the use of fertilizers in orchard systems, reducing the environmental impact. Yield was affected by the N dose and timing of application. The highest yield (58.6 t ha-1 with a fruit diameter higher than 65 mm) was recorded in 2015, applying only 50 kg N ha-1 plus NI, in fruit growth phase I. no negative visual effects were observed in the field except for trees with lower N doses (25 kg N ha-1). Darker leaves were visually observed in the NI treatments. More experiments need to be established to corroborate these findings.
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Claims 10
Claim · model-written summary
Increasing nitrogen rates increased peach canopy area.
- Taxon
- peach
Prunus persicat0 - Treatment
- Increasing N application ratese0
- Outcome
- tree canopy areae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing N application rates and the use of NI increased the tree canopy area and N content of the leaves and fruits.”
t0“peach orchard”
Claim · model-written summary
Use of nitrification inhibitor increased peach canopy area.
- Taxon
- peachPrunus persicat0
- Treatment
- use of NIe0
- Outcome
- tree canopy areae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing N application rates and the use of NI increased the tree canopy area and N content of the leaves and fruits.”
t0“peach orchard”
Claim · model-written summary
Increasing nitrogen rates increased nitrogen content of peach leaves and fruits.
- Taxon
- peachPrunus persicat0
- Treatment
- Increasing N application ratese0
- Outcome
- N content of the leaves and fruitse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing N application rates and the use of NI increased the tree canopy area and N content of the leaves and fruits.”
t0“peach orchard”
Claim · model-written summary
Nitrification inhibitor increased nitrogen content of peach leaves and fruits.
- Taxon
- peachPrunus persicat0
- Treatment
- use of NIe0
- Outcome
- N content of the leaves and fruitse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing N application rates and the use of NI increased the tree canopy area and N content of the leaves and fruits.”
t0“peach orchard”
Claim · model-written summary
Peach yield varied with nitrogen dose and timing.
- Taxon
- peachPrunus persicat0
- Treatment
- N dose and timing of applicatione0
- Outcome
- Yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield was affected by the N dose and timing of application.”
t0“peach orchard”
Claim · model-written summary
Applying 50 kg N ha-1 plus inhibitor during fruit growth phase I gave the highest yield in 2015.
- Taxon
- peachPrunus persicat0
- Organ / stage
- fruit growth phase Ie0
- Treatment
- 50 kg N ha-1 plus NIe0
- Outcome
- yielde0
- Direction
- higheste0
- Value
- 58.6 t ha-1e0
- Qualifier
- in 2015e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yield (58.6 t ha-1 with a fruit diameter higher than 65 mm) was recorded in 2015, applying only 50 kg N ha-1 plus NI, in fruit growth phase I.”
t0“peach orchard”
Claim · model-written summary
The high yield treatment produced fruit diameter above 65 mm.
- Taxon
- peachPrunus persicat0
- Treatment
- 50 kg N ha-1 plus NIe0
- Outcome
- fruit diametere0
- Direction
- higher thane0
- Value
- 65 mme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yield (58.6 t ha-1 with a fruit diameter higher than 65 mm) was recorded in 2015, applying only 50 kg N ha-1 plus NI, in fruit growth phase I.”
t0“peach orchard”
Claim · model-written summary
Trees receiving the lower nitrogen dose showed negative visual effects.
- Taxon
- peachPrunus persicat0
- Treatment
- 25 kg N ha-1e0
- Outcome
- negative visual effectse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no negative visual effects were observed in the field except for trees with lower N doses (25 kg N ha-1).”
t0“peach orchard”
Claim · model-written summary
Inhibitor treatments produced visibly darker leaves.
- Taxon
- peachPrunus persicat0
- Treatment
- NI treatmentse0
- Outcome
- Darker leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Darker leaves were visually observed in the NI treatments.”
t0“peach orchard”
Claim · model-written summary
The authors proposed inhibitor use to minimize fertilizer use and environmental impact.
- Taxon
- peachPrunus persicat0
- Treatment
- use of NIe0
- Outcome
- minimize the use of fertilizers in orchard systemse0
- Direction
- minimizee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The use of NI could be an effective way to minimize the use of fertilizers in orchard systems, reducing the environmental impact.”
t0“peach orchard”
The same questions in other papers
nitrogen · nutrient: content · Prunus persica (peach)Positive and negative results
4 papers in the same direction as this paper · 5 in the opposite direction
- no effect
- no effect
- no effect
6 papers more in this group
See all 10 papers →nitrogen · growth · Prunus persica (peach)Positive and negative results
21 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- no effect
- 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.