Abstract
A field experiment was conducted during the winter season of 1990-91 and 1991·-92 to evaluate the effect of irrigation and nitrogen on wheat (Triticum aestivum L. emend. Fiori & Paol.) grown on sodic soil. Frequent irrigation at 1.2 irrigation water depth; cumulative pan evaporation (IW : CPE) ratio (IW ≈ 50 mm) with 180 kg N/ha gave the highest grain yield of wheat (4 091 kg/ha). The rate of water use per day increased with advance in age, reaching the peak value of 3.58 mm/day during 60-90 days and was higher in irrigated crop (4.97 mm/day) under 1.2IW : CPE ratio than in the unirrigated (1.89 mm/day). More moisture was extracted from deeper layer (60-120 cm) under unirrigated condition than under irrigated condition. N application increased the moisture depletion from 0-60 cm Soil depth. The nitrate-nitrogen content of the soil was more under unirrigated condition than under irrigated one .It decreased with increase in irrigation frequency, but increased with higher level of N. At harvest it was higher in 15-30 cm than in 0-15 cm soil layer under 0.9 and 1.2 IW : CPE ratios
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Claims 9
Claim · model-written summary
Irrigation at 1.2 IW:CPE with 180 kg N/ha gave the highest wheat grain yield, 4 091 kg/ha.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Frequent irrigation at 1.2 irrigation water depth; cumulative pan evaporation (IW : CPE) ratio (IW ≈ 50 mm) with 180 kg N/hae0
- Outcome
- grain yield of wheate0
- Direction
- higheste0
- Value
- 4 091 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Frequent irrigation at 1.2 irrigation water depth; cumulative pan evaporation (IW : CPE) ratio (IW ≈ 50 mm) with 180 kg N/ha gave the highest grain yield of wheat (4 091 kg/ha).”
Claim · model-written summary
Daily water use peaked at 3.58 mm/day during 60-90 days.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- rate of water use per daye0
- Direction
- peake0
- Value
- 3.58 mm/daye0
- Qualifier
- during 60-90 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rate of water use per day increased with advance in age, reaching the peak value of 3.58 mm/day during 60-90 days”
t0“wheat”
Claim · model-written summary
Irrigated wheat used more water per day than unirrigated wheat, 4.97 versus 1.89 mm/day.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 1.2IW : CPE ratioe0
- Direction
- highere0
- Value
- 4.97 mm/daye0
- Qualifier
- 1.89 mm/daye0
- Comparator
- unirrigatede0
Not reportedOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was higher in irrigated crop (4.97 mm/day) under 1.2IW : CPE ratio than in the unirrigated (1.89 mm/day).”
t0“wheat”
Claim · model-written summary
Unirrigated wheat extracted more moisture from the 60-120 cm layer than irrigated wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- unirrigated conditione0
- Outcome
- moisture was extracted from deeper layere0
- Direction
- Moree0
- Qualifier
- 60-120 cme0
- Comparator
- irrigated conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“More moisture was extracted from deeper layer (60-120 cm) under unirrigated condition than under irrigated condition.”
t0“wheat”
Claim · model-written summary
Nitrogen application increased moisture depletion from 0-60 cm soil depth.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- N applicatione0
- Outcome
- moisture depletione0
- Direction
- increasede0
- Qualifier
- 0-60 cm Soil depthe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N application increased the moisture depletion from 0-60 cm Soil depth.”
t0“wheat”
Claim · model-written summary
Soil nitrate-nitrogen was higher without irrigation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- unirrigated conditione0
- Outcome
- nitrate-nitrogen content of the soile0
- Direction
- moree0
- Comparator
- irrigated onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nitrate-nitrogen content of the soil was more under unirrigated condition than under irrigated one”
t0“wheat”
Claim · model-written summary
Soil nitrate-nitrogen decreased with increasing irrigation frequency.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- irrigation frequencye0
- Direction
- decreasede0
Not reportedOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It decreased with increase in irrigation frequency”
t0“wheat”
Claim · model-written summary
Soil nitrate-nitrogen increased at higher nitrogen levels.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- higher level of Ne0
- Direction
- increasede0
Not reportedOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased with higher level of N”
t0“wheat”
Claim · model-written summary
At harvest, soil nitrate-nitrogen was higher at 15-30 cm than 0-15 cm under 0.9 and 1.2 IW:CPE.
- Taxon
- wheatTriticum aestivumt0
- Direction
- highere0
- Comparator
- 0-15 cm soil layere0
- Setting
- 15-30 cme0
Not reportedOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At harvest it was higher in 15-30 cm than in 0-15 cm soil layer under 0.9 and 1.2 IW : CPE ratios”
t0“wheat”
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