Abstract
Abstract The experiment was conducted during Rabi season of 2015-2016 and 2016-2017 at the Regional Agricultural Research station, BARI, Ishurdi, Pabna, Bangladesh, to determine the water requirements of wheat on raised bed and the effect of different deficit irrigation on yield, water use efficiency and applied water productivity under raised bed wheat. This study consisted of following irrigation treatments: T 1 = Irrigations up to 100% field capacity (FC) at crown root initiation (CRI), botting and grain filling stages (flat bed), T 2 = Irrigations up to 100% FC at CRI, botting and grain filling stages on raised bed, T 3 = Irrigations up to 80% FC at CRI, botting and grain filling stages on raised bed and T 4 = Irrigations up to 60% FC at CRI, botting and grain filling stages on raised bed and laid out in a randomize complete block design with three replications. The result showed that significant effect of irrigation treatments were observed on plant height, spike per m 2 and grain yield. Highest grain yield (4.66 t/ha) was obtained from treatment, irrigations up to 100% FC at CRI, botting and grain filling stages on raised bed, followed by irrigation up to 100% FC at same stages on flat bed. At raised bed wheat cultivation saving 14.30% water with increasing 15.66% grain yield than flat bed. Besides, comparing deficit irrigation (20% and 40% of full irrigation) and full irrigation condition on raised bed seeding system water use could be reduced about 4.18% to 5.57%, while scarifying 18.20% to 32.33% grain yield, where reduced 14.17% to 27.54% water use efficiency. Maximum applied water productivity 1.81 kg m −3 was observed in raised bed full irrigation condition. The rate of daily evaporation started to increase as the temperature started to rise and humidity started to decrease during the crop growing period. The results will be helpful for taking policy decision regarding efficient irrigation and water management under prevailing water scarce situation.
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Claims 8
Claim · model-written summary
Irrigation treatments significantly affected wheat plant height, spikes per area and grain yield.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- irrigation treatmentse0
- Outcome
- plant height, spike per m 2 and grain yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant effect of irrigation treatments were observed on plant height, spike per m 2 and grain yield”
t0“Wheat”
Claim · model-written summary
Full irrigation on raised beds produced the highest grain yield, 4.66 t/ha.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- irrigations up to 100% FC at CRI, botting and grain filling stages on raised bede0
- Outcome
- grain yielde0
- Direction
- Higheste0
- Value
- 4.66 t/hae0
- Comparator
- irrigation up to 100% FC at same stages on flat bede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest grain yield (4.66 t/ha) was obtained from treatment, irrigations up to 100% FC at CRI, botting and grain filling stages on raised bed, followed by irrigation up to 100% FC at same stages on flat bed”
t0“Wheat”
Claim · model-written summary
Raised-bed cultivation saved 14.30% water versus flat beds.
- Taxon
- wheatTriticum aestivume0
- Treatment
- raised bede0
- Outcome
- watere0
- Direction
- savinge0
- Value
- 14.30%e0
- Comparator
- flat bede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At raised bed wheat cultivation saving 14.30% water with increasing 15.66% grain yield than flat bed”
Claim · model-written summary
Raised beds increased wheat grain yield by 15.66% versus flat beds.
- Taxon
- wheatTriticum aestivume0
- Treatment
- raised bede0
- Outcome
- grain yielde0
- Direction
- increasinge0
- Value
- 15.66%e0
- Comparator
- flat bede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At raised bed wheat cultivation saving 14.30% water with increasing 15.66% grain yield than flat bed”
Claim · model-written summary
Deficit irrigation reduced water use by about 4.18% to 5.57% on raised beds.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- deficit irrigation (20% and 40% of full irrigation)e0
- Outcome
- water usee0
- Direction
- reducede0
- Value
- 4.18% to 5.57%e0
- Comparator
- full irrigation conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“comparing deficit irrigation (20% and 40% of full irrigation) and full irrigation condition on raised bed seeding system water use could be reduced about 4.18% to 5.57%”
t0“Wheat”
Claim · model-written summary
Deficit irrigation reduced grain yield by 18.20% to 32.33%.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- grain yielde0
- Direction
- scarifyinge0
- Value
- 18.20% to 32.33%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while scarifying 18.20% to 32.33% grain yield”
t0“Wheat”
Claim · model-written summary
Deficit irrigation reduced water use efficiency by 14.17% to 27.54%.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- water use efficiencye0
- Direction
- reducede0
- Value
- 14.17% to 27.54%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“where reduced 14.17% to 27.54% water use efficiency”
t0“Wheat”
Claim · model-written summary
Full irrigation on raised beds gave maximum applied water productivity of 1.81 kg m −3.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- raised bed full irrigation conditione0
- Outcome
- applied water productivitye0
- Direction
- Maximume0
- Value
- 1.81 kg m −3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum applied water productivity 1.81 kg m −3 was observed in raised bed full irrigation condition”
t0“Wheat”
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