Abstract
Abstract The aim of this study is to optimize water irrigation management for improving carrot productivity and water-saving in arid regions of southern Tunisia. Field studies were conducted over two seasons (2017–2019) to evaluate the effects of drip irrigation (DI) and surface irrigation (SI) methods coupled with three irrigation regimes on agronomic parameters of carrot crops. Irrigation regimes consisted of water replacements of cumulated crop evapotranspiration (ETc) at levels of 100% (I100), 70% (I70), and 40% (I40) when the readily available water in I100 treatment was depleted. Results showed a reduction in carrot yield by 13–22% and 22–32% with I70 and I40 treatments compared to I100, respectively. Yield is affected by the irrigation method with a reduction of around 6–7% under the surface method for both years. The water productivity (WP) was found to significantly vary among regimes and methods, where the highest values were observed for the I40 regimes and drip method. Drip and I100 irrigation techniques seem to optimize carrot production. Under situations of water shortage, adopting deficit irrigation treatment (DI70) could be an alternative for managing carrot irrigation and improving water productivity.
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 8
Claim · model-written summary
The I70 irrigation regime reduced carrot yield by 13–22% compared with I100.
- Taxon
- carrot
Daucus carotae0 - Treatment
- I70e1
- Outcome
- carrot yielde1
- Direction
- reductione1
- Value
- 13–22%e1
- Comparator
- I100e1
- Setting
- southern Tunisiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improving carrot productivity and water-saving in arid regions of southern Tunisia”
e1“a reduction in carrot yield by 13–22% and 22–32% with I70 and I40 treatments compared to I100, respectively”
Claim · model-written summary
The I40 irrigation regime reduced carrot yield by 22–32% compared with I100.
- Taxon
- carrotDaucus carotae0
- Treatment
- I40e1
- Outcome
- carrot yielde1
- Direction
- reductione1
- Value
- 22–32%e1
- Comparator
- I100e1
- Setting
- southern Tunisiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improving carrot productivity and water-saving in arid regions of southern Tunisia”
e1“a reduction in carrot yield by 13–22% and 22–32% with I70 and I40 treatments compared to I100, respectively”
Claim · model-written summary
Carrot yield was reduced by around 6–7% under the surface irrigation method for both years.
- Taxon
- carrotDaucus carotae0
- Treatment
- surface methode1
- Outcome
- Yielde1
- Direction
- reductione1
- Value
- 6–7%e1
- Qualifier
- for both yearse1
- Setting
- southern Tunisiae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improving carrot productivity and water-saving in arid regions of southern Tunisia”
e1“Yield is affected by the irrigation method with a reduction of around 6–7% under the surface method for both years”
Claim · model-written summary
Carrot water productivity varied significantly among irrigation regimes and methods.
- Taxon
- carrotDaucus carotae0
- Treatment
- regimes and methodse1
- Outcome
- water productivitye1
- Setting
- southern Tunisiae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improving carrot productivity and water-saving in arid regions of southern Tunisia”
e1“The water productivity (WP) was found to significantly vary among regimes and methods”
Claim · model-written summary
The highest carrot water productivity values were observed for the I40 irrigation regime.
- Taxon
- carrotDaucus carotae0
- Treatment
- I40 regimese2
- Outcome
- water productivitye1
- Direction
- higheste2
- Setting
- southern Tunisiae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improving carrot productivity and water-saving in arid regions of southern Tunisia”
e1“The water productivity (WP) was found”
e2“the highest values were observed for the I40 regimes”
Claim · model-written summary
The highest carrot water productivity values were observed for the drip irrigation method.
- Taxon
- carrotDaucus carotae0
- Treatment
- drip methode2
- Outcome
- water productivitye1
- Direction
- higheste2
- Setting
- southern Tunisiae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improving carrot productivity and water-saving in arid regions of southern Tunisia”
e1“The water productivity (WP) was found”
e2“the highest values were observed for the I40 regimes and drip method”
Claim · model-written summary
Drip irrigation and I100 irrigation seem to optimize carrot production.
- Taxon
- carrotDaucus carotae0
- Outcome
- optimize carrot productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drip and I100 irrigation techniques seem to optimize carrot production”
Claim · model-written summary
Under water shortage, deficit irrigation treatment DI70 could be an alternative for managing carrot irrigation and improving water productivity.
- Taxon
- carrotDaucus carotae0
- Outcome
- managing carrot irrigation and improving water productivitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“adopting deficit irrigation treatment (DI70) could be an alternative for managing carrot irrigation and improving water productivity”
The same questions in other papers
irrigation · physiology: water · Daucus carota (carrot)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- positive
3 papers more in this group
See all 7 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.