Abstract
Two field experiments were conducted in 2012/2013 and 2013/2014 winter seasons at Sids Agric. Res. Station, Beni-Suef, Egyptto find out the extent to which onion crop performance was affected by alternate furrow irrigation technique. Two alternate furrow irrigation regimes were assessed i.e. irrigating at 14 or 28 days intervals, comparing with the common furrow irrigation regime. These irrigation regimes were combined with 60, 90 and 120 kgNfed-1 levels and tested in a split plot design with four replicates, where irrigation regimes were represented in the main plots, whereas split ones were assigned for N levels. Onion yield and quality, applied water as well as water, N and consumptive use efficiencies were considered. The most important results could be summarized as follows: 1- The marketable onion bulb and total yields were significantly increased under Alternate Furrow Irrigation at 14 days interval (AFI14), comparable with Alternate Furrow Irrigation at 28 days interval (AFI28) and common furrow irrigation (EFI). The highest values of bulb weight, bulb diameter, bulb total soluble solids (TSS %) and bulb dry matter (DM %) were obtained with AFI14 regime. Increasing N level resulted in gradual increases in marketable, total, culls onion bulb yields, onion bulb weight, bulb diameter, bulb TSS and DM%. The interaction of AFI14 regime and 120 kg Nfed-1 level resulted in the highest figures of the abovementioned parameters. 2- The highest values of seasonal applied water were under every-furrow irrigation (EFI) and reached to 2247 and 2209 m3fed-1, which reduced by (24.86 and 7.29%) and by (24.52 and 7.22%) under AFI28 and AFI14 regimes, respectively, in the consecutive two seasons. The highest seasonal Cu (1712.28 and 1642.37 m3fed-1) were recorded under EFI, which tended to reduction under AFI28 and AFI14 regimes with 17.98 and 5.71% in 1st season, and 19.83 and 6.63% in 2nd season, respectively, lower than that with EFI regime. Increasing N level resulted in gradual increased Cu values, and interaction of EFI regime and 120 kg Nfed-1 level revealed the highest Cu value. 3- TheAFI14 regime exhibited the highest values ofIrrigation Water Productivity, Water and N Use Efficiencies, whereas Consumptive Use Efficiency was improved with AFI28 regime. Irrigation Water Productivity, Water and Consumptive Use Efficiencies, were increased gradually with increasing N level, whereas N use efficiency exhibited a differed trend. On conclusion, AFI14 regime is capable to mitigate the water stress, during the irrigation cycle, and to increase onion bulb yield. In addition, it is obviously noticed that the alternate furrow irrigation at 14-days interval and120 kgNfed-1 is the best combination to achieve higher marketable onion bulb yield and to improve irrigation and N use efficiencies as well.
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Claims 16
Claim · model-written summary
AFI14 significantly increased marketable onion bulb and total yields compared with AFI28 and EFI.
- Taxon
- onion
Allium cepae0 - Treatment
- Alternate Furrow Irrigation at 14 days interval (AFI14)e0
- Outcome
- marketable onion bulb and total yieldse0
- Direction
- increasede0
- Comparator
- Alternate Furrow Irrigation at 28 days interval (AFI28) and common furrow irrigation (EFI)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“marketable onion bulb and total yields were significantly increased under Alternate Furrow Irrigation at 14 days interval (AFI14), comparable with Alternate Furrow Irrigation at 28 days interval (AFI28) and common furrow irrigation (EFI)”
Claim · model-written summary
AFI14 produced the highest bulb weight, diameter, total soluble solids and dry matter.
- Taxon
- ONIONAllium cepat0
- Treatment
- AFI14 regimee0
- Outcome
- bulb weight, bulb diameter, bulb total soluble solids (TSS %) and bulb dry matter (DM %)e0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest values of bulb weight, bulb diameter, bulb total soluble solids (TSS %) and bulb dry matter (DM %) were obtained with AFI14 regime”
t0“ONION”
Claim · model-written summary
Increasing nitrogen rate gradually raised marketable, total and cull bulb yields.
- Taxon
- onionAllium cepae0
- Treatment
- Increasing N levele0
- Outcome
- marketable, total, culls onion bulb yieldse0
- Direction
- gradual increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing N level resulted in gradual increases in marketable, total, culls onion bulb yields, onion bulb weight, bulb diameter, bulb TSS and DM%”
Claim · model-written summary
Increasing nitrogen rate gradually raised bulb weight, diameter, TSS and dry matter.
- Taxon
- onionAllium cepae0
- Treatment
- Increasing N levele0
- Outcome
- onion bulb weight, bulb diameter, bulb TSS and DM%e0
- Direction
- gradual increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing N level resulted in gradual increases in marketable, total, culls onion bulb yields, onion bulb weight, bulb diameter, bulb TSS and DM%”
Claim · model-written summary
AFI14 with 120 kg Nfed-1 yielded the highest values for the previously listed onion yield and quality traits.
Not reportedTaxonComparator
Verbatim
e0“The interaction of AFI14 regime and 120 kg Nfed-1 level resulted in the highest figures of the abovementioned parameters”
Claim · model-written summary
EFI had the highest seasonal applied water, 2247 and 2209 m3fed-1 across seasons.
- Taxon
- ONIONAllium cepat0
- Treatment
- every-furrow irrigation (EFI)e0
- Outcome
- seasonal applied watere0
- Direction
- higheste0
- Value
- 2247 and 2209 m3fed-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest values of seasonal applied water were under every-furrow irrigation (EFI) and reached to 2247 and 2209 m3fed-1”
t0“ONION”
Claim · model-written summary
AFI28 reduced applied water by 24.86% and 24.52% across the two seasons relative to EFI.
- Taxon
- ONIONAllium cepat0
- Treatment
- AFI28e0
- Direction
- reducede0
- Value
- 24.86e0
Not reportedComparatorOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which reduced by (24.86 and 7.29%) and by (24.52 and 7.22%) under AFI28 and AFI14 regimes, respectively, in the consecutive two seasons”
t0“ONION”
Claim · model-written summary
AFI14 reduced applied water by 7.29% and 7.22% across the two seasons relative to EFI.
- Taxon
- ONIONAllium cepat0
- Treatment
- AFI14e0
- Direction
- reducede0
- Value
- 7.29%e0
Not reportedComparatorOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which reduced by (24.86 and 7.29%) and by (24.52 and 7.22%) under AFI28 and AFI14 regimes, respectively, in the consecutive two seasons”
t0“ONION”
Claim · model-written summary
EFI had the highest seasonal consumptive use, 1712.28 and 1642.37 m3fed-1.
- Taxon
- ONIONAllium cepat0
- Treatment
- EFIe0
- Outcome
- seasonal Cue0
- Direction
- higheste0
- Value
- 1712.28 and 1642.37 m3fed-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest seasonal Cu (1712.28 and 1642.37 m3fed-1) were recorded under EFI”
t0“ONION”
Claim · model-written summary
AFI28 lowered consumptive use by 17.98% and 19.83% across seasons relative to EFI.
Not reportedOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which tended to reduction under AFI28 and AFI14 regimes with 17.98 and 5.71% in 1st season, and 19.83 and 6.63% in 2nd season, respectively, lower than that with EFI regime”
t0“ONION”
Claim · model-written summary
AFI14 lowered consumptive use by 5.71% and 6.63% across seasons relative to EFI.
Not reportedOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which tended to reduction under AFI28 and AFI14 regimes with 17.98 and 5.71% in 1st season, and 19.83 and 6.63% in 2nd season, respectively, lower than that with EFI regime”
t0“ONION”
Claim · model-written summary
Increasing nitrogen raised consumptive use; EFI with 120 kg Nfed-1 had the highest value.
- Taxon
- ONIONAllium cepat0
- Treatment
- Increasing N levele0
- Outcome
- Cu valuese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing N level resulted in gradual increased Cu values, and interaction of EFI regime and 120 kg Nfed-1 level revealed the highest Cu value”
t0“ONION”
Claim · model-written summary
AFI14 produced the highest irrigation water productivity and water and nitrogen use efficiencies.
- Taxon
- ONIONAllium cepat0
- Treatment
- AFI14 regimee0
- Outcome
- Irrigation Water Productivity, Water and N Use Efficienciese0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“AFI14 regime exhibited the highest values ofIrrigation Water Productivity, Water and N Use Efficiencies”
t0“ONION”
Claim · model-written summary
AFI28 improved consumptive use efficiency.
- Taxon
- ONIONAllium cepat0
- Treatment
- AFI28 regimee0
- Outcome
- Consumptive Use Efficiencye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Consumptive Use Efficiency was improved with AFI28 regime”
t0“ONION”
Claim · model-written summary
Increasing nitrogen increased irrigation water productivity and water and consumptive use efficiencies, while nitrogen use efficiency followed a different trend.
- Taxon
- ONIONAllium cepat0
- Treatment
- increasing N levele0
- Outcome
- Irrigation Water Productivity, Water and Consumptive Use Efficienciese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation Water Productivity, Water and Consumptive Use Efficiencies, were increased gradually with increasing N level, whereas N use efficiency exhibited a differed trend”
t0“ONION”
Claim · model-written summary
The authors recommend AFI14 with 120 kgNfed-1 for higher marketable yield and improved irrigation and nitrogen use efficiencies.
- Taxon
- onionAllium cepae0
- Treatment
- alternate furrow irrigation at 14-days interval and120 kgNfed-1e0
- Outcome
- marketable onion bulb yield and to improve irrigation and N use efficienciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alternate furrow irrigation at 14-days interval and120 kgNfed-1 is the best combination to achieve higher marketable onion bulb yield and to improve irrigation and N use efficiencies”
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