Abstract
Water deficit, especially during summer, is currently one of the most important stress factors that influence olive oil production in olive orchards. A precision irrigation strategy, based on daily trunk growth, was assessed and compared with one continuous deficit, one full irrigation, and two different regulated deficit irrigation strategies. All of them were tested in a super high-density olive orchard located in northeast Spain, in which oil production, main oil production components, applied irrigation water, and water productivity were assessed. For this purpose, the crop was monitored from budding to harvesting, mainly during the summer months in which the Precision strategy only applied water after two days of negative daily trunk growth. Maximum monthly water savings for the Precision strategy reached 91.8%, compared with full irrigation, while major annual mean water savings reached 50% for the continuous deficit strategy and 31.2% for the Precision strategy, which also reduced irrigation events by up to 19.7%, compared with the full irrigation strategy. Oil production and oil production components varied depending on the irrigation strategies providing the Control, one of the regulated deficit irrigations, and Precision higher values than the other strategies; oil yield results differ, nonetheless. The Precision strategy showed an overall better performance. Despite this, it did not achieve the highest water saving, it achieved higher water productivity.
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Claims 9
Claim · model-written summary
Precision irrigation saved up to 91.8% of monthly water relative to full irrigation.
- Taxon
- olive
Olea europaeat0 - Treatment
- Precision strategye0
- Outcome
- monthly water savingse0
- Direction
- savingse0
- Value
- 91.8%e0
- Comparator
- full irrigatione0
- Setting
- northeast Spaine1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum monthly water savings for the Precision strategy reached 91.8%, compared with full irrigation”
t0“Olive”
e1“in a super high-density olive orchard located in northeast Spain”
Claim · model-written summary
Continuous deficit irrigation saved 50% of annual mean water relative to full irrigation.
- Taxon
- oliveOlea europaeat0
- Treatment
- continuous deficit strategye0
- Outcome
- annual mean water savingse0
- Direction
- savingse0
- Value
- 50%e0
- Comparator
- full irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“major annual mean water savings reached 50% for the continuous deficit strategy and 31.2% for the Precision strategy”
t0“Olive”
e1“Maximum monthly water savings for the Precision strategy reached 91.8%, compared with full irrigation”
Claim · model-written summary
Precision irrigation saved 31.2% of annual mean water relative to full irrigation.
- Taxon
- oliveOlea europaeat0
- Treatment
- Precision strategye0
- Outcome
- annual mean water savingse0
- Direction
- savingse0
- Value
- 31.2%e0
- Comparator
- full irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“major annual mean water savings reached 50% for the continuous deficit strategy and 31.2% for the Precision strategy”
t0“Olive”
e1“Maximum monthly water savings for the Precision strategy reached 91.8%, compared with full irrigation”
Claim · model-written summary
Precision irrigation reduced irrigation events by up to 19.7% relative to full irrigation.
- Taxon
- oliveOlea europaeat0
- Treatment
- Precision strategye0
- Outcome
- irrigation eventse0
- Direction
- reducede0
- Value
- 19.7%e0
- Comparator
- full irrigation strategye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Precision strategy, which also reduced irrigation events by up to 19.7%, compared with the full irrigation strategy”
t0“Olive”
Claim · model-written summary
The Control irrigation strategy produced higher oil production and component values than the other strategies.
- Taxon
- oliveOlea europaeat0
- Treatment
- Controle0
- Outcome
- Oil production and oil production componentse0
- Direction
- highere0
- Comparator
- other strategiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil production and oil production components varied depending on the irrigation strategies providing the Control, one of the regulated deficit irrigations, and Precision higher values than the other strategies”
t0“Olive”
Claim · model-written summary
One regulated deficit irrigation strategy produced higher oil production and component values than the other strategies.
- Taxon
- oliveOlea europaeat0
- Treatment
- one of the regulated deficit irrigationse0
- Outcome
- Oil production and oil production componentse0
- Direction
- highere0
- Comparator
- other strategiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil production and oil production components varied depending on the irrigation strategies providing the Control, one of the regulated deficit irrigations, and Precision higher values than the other strategies”
t0“Olive”
Claim · model-written summary
Precision irrigation produced higher oil production and component values than the other strategies.
- Taxon
- oliveOlea europaeat0
- Treatment
- Precisione0
- Outcome
- Oil production and oil production componentse0
- Direction
- highere0
- Comparator
- other strategiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oil production and oil production components varied depending on the irrigation strategies providing the Control, one of the regulated deficit irrigations, and Precision higher values than the other strategies”
t0“Olive”
Claim · model-written summary
Oil yield results differed from the pattern for oil production and components.
- Taxon
- oliveOlea europaeat0
- Outcome
- oil yield results differe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oil yield results differ, nonetheless”
t0“Olive”
Claim · model-written summary
The Precision strategy achieved higher water productivity.
- Taxon
- oliveOlea europaeat0
- Treatment
- Precision strategye1
- Outcome
- water productivitye0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it achieved higher water productivity”
t0“Olive”
e1“Maximum monthly water savings for the Precision strategy reached 91.8%, compared with full irrigation”
The same questions in other papers
irrigation · yield · Olea europaea (common olive)Results differ
25 papers in the same direction as this paper · 24 in the opposite direction · 3 reporting no difference from an alternative
- negative
- no effect
- negative
49 papers more in this group
See all 53 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.