Abstract
A field experiment was carried out during 2009-10 and 2010-11 on a sandy loam soil of IARI, New Delhi on wheat (Triticum aestivum L.) with four levels of irrigation (rainfed, irrigations to replenish 30, 60 and 100% moisture deficit from field capacity) as main plot factors and four levels of nitrogen (0, 30, 60 and 120 kg N/ha) as subplot factors in a split plot design. The soil moisture storage in the profile showed inverse relation with the nitrogen levels whereas direct relationship was observed with the irrigation levels. The water use vs. wheat yield relation was linear and significant. Regression analysis showed that 58% variation in grain yield of wheat could be explained by water use. The grain yield showed increasing trend with increase in irrigation and nitrogen levels. The WP and EWP increased with increase in irrigation level up to 60% SMD and thereafter it decreased. However, both WP and EWP showed increasing trend with increase in nitrogen levels. The ANUE and PFPN increased with increase in irrigation levels, but with increase in nitrogen levels both ANUE and PFPN decreased. Grain yield, water productivity and nitrogen use efficiency showed significant interaction effect of irrigation and nitrogen.
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Claims 10
Claim · model-written summary
Soil moisture storage fell with nitrogen levels.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- nitrogen levelse0
- Outcome
- soil moisture storage in the profilee0
- Direction
- decreaseinferrede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The soil moisture storage in the profile showed inverse relation with the nitrogen levels”
e1“on wheat (Triticum aestivum L.)”
Claim · model-written summary
Soil moisture storage rose with irrigation levels.
- Taxon
- wheatTriticum aestivume2
- Treatment
- irrigation levelse0
- Outcome
- soil moisture storage in the profilee1
- Direction
- increaseinferrede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“direct relationship was observed with the irrigation levels”
e1“The soil moisture storage in the profile”
e2“on wheat (Triticum aestivum L.)”
Claim · model-written summary
Water use was linearly and significantly related to wheat yield, explaining 58% of grain yield variation.
- Taxon
- wheatTriticum aestivume0
- Treatment
- water usee0
- Outcome
- grain yielde0
- Value
- 58%e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water use vs. wheat yield relation was linear and significant. Regression analysis showed that 58% variation in grain yield of wheat could be explained by water use.”
Claim · model-written summary
Grain yield rose as irrigation levels rose.
- Taxon
- wheatTriticum aestivume1
- Treatment
- irrigatione0
- Outcome
- grain yielde0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield showed increasing trend with increase in irrigation and nitrogen levels.”
e1“on wheat (Triticum aestivum L.)”
Claim · model-written summary
Grain yield rose as nitrogen levels rose.
- Taxon
- wheatTriticum aestivume1
- Treatment
- nitrogen levelse0
- Outcome
- grain yielde0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield showed increasing trend with increase in irrigation and nitrogen levels.”
e1“on wheat (Triticum aestivum L.)”
Claim · model-written summary
WP and EWP rose with irrigation to 60% SMD, then declined.
- Taxon
- wheatTriticum aestivume1
- Treatment
- irrigation levele0
- Outcome
- WP and EWPe0
- Direction
- increasede0
- Qualifier
- up to 60% SMD and thereafter it decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The WP and EWP increased with increase in irrigation level up to 60% SMD and thereafter it decreased.”
e1“on wheat (Triticum aestivum L.)”
Claim · model-written summary
WP and EWP rose as nitrogen levels rose.
- Taxon
- wheatTriticum aestivume1
- Treatment
- nitrogen levelse0
- Outcome
- WP and EWPe0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both WP and EWP showed increasing trend with increase in nitrogen levels.”
e1“on wheat (Triticum aestivum L.)”
Claim · model-written summary
ANUE and PFPN rose as irrigation rose.
- Taxon
- wheatTriticum aestivume1
- Treatment
- irrigation levelse0
- Outcome
- ANUE and PFPNe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ANUE and PFPN increased with increase in irrigation levels”
e1“on wheat (Triticum aestivum L.)”
Claim · model-written summary
ANUE and PFPN fell as nitrogen rose.
- Taxon
- wheatTriticum aestivume1
- Treatment
- nitrogen levelse0
- Outcome
- ANUE and PFPNe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with increase in nitrogen levels both ANUE and PFPN decreased”
e1“on wheat (Triticum aestivum L.)”
Claim · model-written summary
Irrigation and nitrogen interacted significantly for grain yield, water productivity and nitrogen use efficiency.
- Taxon
- wheatTriticum aestivume1
- Treatment
- irrigation and nitrogene0
- Outcome
- Grain yield, water productivity and nitrogen use efficiencye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield, water productivity and nitrogen use efficiency showed significant interaction effect of irrigation and nitrogen.”
e1“on wheat (Triticum aestivum L.)”
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irrigation · yield · Triticum aestivum (wheat)Positive and negative results
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1,736 papers in the same direction as this paper · 285 in the opposite direction · 39 reporting no difference from an alternative
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See all 2,061 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.