Abstract
Drip irrigation can save 30–60 % of water and enables the simultaneous application of water and fertilisers through fertigation. A field experiment was conducted for three consecutive rabi seasons (2021–22, 2022–23 and 2023–24) to evaluate the effect of different injector and emitter types on fertigation uniformity in garlic (Allium sativum L.) Three types of emitters and two types of fertiliser injectors were tested to determine their influence on the coefficient of variation (Cv) of water and nutrient application. Results showed that both injector type and emitter manufacturing variability significantly affected fertigation and irrigation uniformity. Across the years, the lowest Cv for fertigation was obtained with the combination of a pressure-compensating emitter (2 lph) and a venturi manifold device, whereas the highest Cv resulted from the combination of drip tape emitter (4 lph) with a hydro-pneumatic pressure pump vessel. Fertigation uniformity improved as Cv decreased. The study also revealed noticeable differences between the Cv of irrigation water and the Cv of fertiliser application, indicating that a system performing well in water distribution does not necessarily ensure uniform fertiliser distribution. Based on the findings, the use of 2 lph pressure-compensating emitters with a venturi manifold device is recommended for achieving higher fertigation uniformity in drip irrigation systems.
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Claims 5
Claim · model-written summary
In garlic under drip irrigation, both injector type and emitter manufacturing variability significantly affected fertigation and irrigation uniformity.
- Taxon
- garlic
Allium sativumt0 - Treatment
- injector type and emitter manufacturing variabilitye1
- Outcome
- fertigation and irrigation uniformitye1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“garlic”
e1“both injector type and emitter manufacturing variability significantly affected fertigation and irrigation uniformity”
Claim · model-written summary
Across the years, the lowest Cv of fertigation in garlic was obtained with a pressure-compensating emitter (2 lph) combined with a venturi manifold device.
- Taxon
- garlicAllium sativumt0
- Treatment
- combination of a pressure-compensating emitter (2 lph) and a venturi manifold devicee1
- Outcome
- Cv for fertigatione1
- Direction
- loweste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“garlic”
e1“the lowest Cv for fertigation was obtained with the combination of a pressure-compensating emitter (2 lph) and a venturi manifold device”
Claim · model-written summary
The highest Cv of fertigation in garlic resulted from a drip tape emitter (4 lph) combined with a hydro-pneumatic pressure pump vessel.
- Taxon
- garlicAllium sativumt0
- Treatment
- combination of drip tape emitter (4 lph) with a hydro-pneumatic pressure pump vessele1
- Outcome
- Cve1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“garlic”
e1“the highest Cv resulted from the combination of drip tape emitter (4 lph) with a hydro-pneumatic pressure pump vessel”
Claim · model-written summary
In garlic drip irrigation, the Cv of irrigation water and the Cv of fertiliser application differed noticeably.
- Taxon
- garlicAllium sativumt0
- Outcome
- Cv of irrigation water and the Cv of fertiliser applicatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“garlic”
e1“noticeable differences between the Cv of irrigation water and the Cv of fertiliser application”
Claim · model-written summary
The authors recommend 2 lph pressure-compensating emitters with a venturi manifold device to achieve higher fertigation uniformity in drip irrigation systems.
- Taxon
- garlicAllium sativumt0
- Treatment
- 2 lph pressure-compensating emitters with a venturi manifold devicee1
- Outcome
- higher fertigation uniformitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“garlic”
e1“the use of 2 lph pressure-compensating emitters with a venturi manifold device is recommended for achieving higher fertigation uniformity in drip irrigation systems”