Abstract
Improving water use efficiency is a vital strategy for addressing future water scarcity. Irrigation is a wide-ranging practice using every drop of water for crop production through suitable practices. Since irrigation plays a key role in global water availability by impacting water productivity, a field experiment was conducted in DL 3 agro ecological region during the yala season of 2018 using drip and basin irrigation methods to evaluate the effect of deficit irrigation practices on growth, yield and water use efficiency of onion. Four treatments; water application through drip irrigation at 150%, 100% and 70% of crop water requirement and basin irrigation as control were designed. Water application at 100% of crop water requirement gave significantly higher onion yield as compared to 70% of crop water requirement and basin irrigation treatment. Also yield from 70% of water application and basin was not significantly different. The onion irrigated at 100% recorded 22.3% of increase in yield over basin method of irrigation. But, irrigation water use efficiency was found highest with drip irrigation at 70% of water application and lowest with basin irrigation. The amount of water saved at 150%, 100% and 70% under drip method was 13.8%, 31.12% and 50.8% respectively over basin method and this would be sufficient to irrigate additional area of onion crop earning better economic returns as compared to basin irrigation method. When consider the irrigation water use efficiency 70% of water application was the best irrigation practice compared to basin irrigation. Hence, the study suggests farmers in the dry region having limited amount of water for irrigation, should adopt drip method with combination of deficit irrigation rather than practice of basin irrigation methods.
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Claims 11
Claim · model-written summary
Drip irrigation at 100% crop water requirement gave significantly higher onion yield than 70% crop water requirement.
- Taxon
- Red Onion (Allium cepa)
Allium cepat0 - Treatment
- 100% of crop water requiremente0
- Outcome
- onion yielde0
- Direction
- highere0
- Comparator
- 70% of crop water requiremente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Red Onion (Allium cepa)”
e0“Water application at 100% of crop water requirement gave significantly higher onion yield as compared to 70% of crop water requirement and basin irrigation treatment.”
Claim · model-written summary
Drip irrigation at 100% crop water requirement gave significantly higher onion yield than basin irrigation.
- Taxon
- Red Onion (Allium cepa)Allium cepat0
- Treatment
- 100% of crop water requiremente0
- Outcome
- onion yielde0
- Direction
- highere0
- Comparator
- basin irrigation treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Red Onion (Allium cepa)”
e0“Water application at 100% of crop water requirement gave significantly higher onion yield as compared to 70% of crop water requirement and basin irrigation treatment.”
Claim · model-written summary
Onion yield with 70% water application was not significantly different from basin irrigation.
- Taxon
- Red Onion (Allium cepa)Allium cepat0
- Treatment
- 70% of water applicatione0
- Outcome
- yielde0
- Direction
- not significantly differente0
- Comparator
- basine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Red Onion (Allium cepa)”
e0“yield from 70% of water application and basin was not significantly different.”
Claim · model-written summary
Onion yield at 100% water application increased 22.3% over basin irrigation.
- Taxon
- Red Onion (Allium cepa)Allium cepat0
- Treatment
- irrigated at 100%e0
- Outcome
- yielde0
- Direction
- increasee0
- Value
- 22.3%e0
- Comparator
- basin method of irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Red Onion (Allium cepa)”
e0“The onion irrigated at 100% recorded 22.3% of increase in yield over basin method of irrigation.”
Claim · model-written summary
Irrigation water use efficiency was highest under drip irrigation at 70% water application.
- Taxon
- Red Onion (Allium cepa)Allium cepat0
- Treatment
- drip irrigation at 70% of water applicatione0
- Outcome
- irrigation water use efficiencye0
- Direction
- higheste0
- Comparator
- basin irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Red Onion (Allium cepa)”
e0“irrigation water use efficiency was found highest with drip irrigation at 70% of water application and lowest with basin irrigation.”
Claim · model-written summary
Irrigation water use efficiency was lowest under basin irrigation.
- Taxon
- Red Onion (Allium cepa)Allium cepat0
- Treatment
- basin irrigatione0
- Outcome
- irrigation water use efficiencye0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Red Onion (Allium cepa)”
e0“irrigation water use efficiency was found highest with drip irrigation at 70% of water application and lowest with basin irrigation.”
Claim · model-written summary
Drip irrigation at 150% saved 13.8% water relative to basin irrigation.
- Taxon
- Red Onion (Allium cepa)Allium cepat0
- Treatment
- 150%e0
- Outcome
- amount of water savede0
- Direction
- savede0
- Value
- 13.8%e0
- Comparator
- basin methode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Red Onion (Allium cepa)”
e0“The amount of water saved at 150%, 100% and 70% under drip method was 13.8%, 31.12% and 50.8% respectively over basin method”
Claim · model-written summary
Drip irrigation at 100% saved 31.12% water relative to basin irrigation.
- Taxon
- Red Onion (Allium cepa)Allium cepat0
- Treatment
- 100%e0
- Outcome
- amount of water savede0
- Direction
- savede0
- Value
- 31.12%e0
- Comparator
- basin methode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Red Onion (Allium cepa)”
e0“The amount of water saved at 150%, 100% and 70% under drip method was 13.8%, 31.12% and 50.8% respectively over basin method”
Claim · model-written summary
Drip irrigation at 70% saved 50.8% water relative to basin irrigation.
- Taxon
- Red Onion (Allium cepa)Allium cepat0
- Treatment
- 70%e0
- Outcome
- amount of water savede0
- Direction
- savede0
- Value
- 50.8%e0
- Comparator
- basin methode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Red Onion (Allium cepa)”
e0“The amount of water saved at 150%, 100% and 70% under drip method was 13.8%, 31.12% and 50.8% respectively over basin method”
Claim · model-written summary
The authors judged 70% water application the best irrigation practice for water use efficiency.
- Taxon
- Red Onion (Allium cepa)Allium cepat0
- Outcome
- 70% of water application was the best irrigation practicee0
- Comparator
- basin irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Red Onion (Allium cepa)”
e0“When consider the irrigation water use efficiency 70% of water application was the best irrigation practice compared to basin irrigation.”
Claim · model-written summary
Farmers in dry regions with limited irrigation water should adopt deficit drip irrigation.
- Taxon
- Red Onion (Allium cepa)Allium cepat0
- Outcome
- adopt drip method with combination of deficit irrigatione0
- Comparator
- basin irrigation methodse0
- Setting
- dry regione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Red Onion (Allium cepa)”
e0“the study suggests farmers in the dry region having limited amount of water for irrigation, should adopt drip method with combination of deficit irrigation rather than practice of basin irrigation methods.”
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