Abstract
In order to evaluate the effects of tillage and wheat residue management on nitrogen uptake and distribution,nitrogen uptake efficiency, nitrogen use efficiency and nitrogen harvest index in wheat, a two-year fieldexperiment was implemented as a split block experiment in a randomized complete block design with twentytreatments and three replicates at experimental site of Ferdowsi University of Mashhad, Iran in 2013 and 2014growing seasons. Four different tillage practices namely, conventional tillage applied by mouldboard plough +disk, reduced tillage practices applied by sweep plough + disk and chisel plough + disk and conserved tillageapplied by disk as vertical factor and five different crop residue applications (0, 25, 50, 75 and 100% wheatresidue) as horizontal factor. According to the results, the lowest (2.58 %) and highest (2.77%) grain nitrogenpercentage were observed when disk and chisel plough + disk were used, respectively. Employing chisel plough+ disk led to the maximum nitrogen uptake efficiency and nitrogen use efficiency. Grain nitrogen percentage,nitrogen uptake efficiency and nitrogen use efficiency significantly increased with increasing wheat residue level.For instance, when wheat residue was applied at 75% ratio, nitrogen uptake efficiency increased by 61.2%compared with control treatment. According to the results it appears that application of wheat residue alongwith reduced tillage could improve nitrogen utilization efficiency, especially in arid and semi-arid regions.
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Claims 6
Claim · model-written summary
Disk tillage gave the lowest grain nitrogen percentage, 2.58%.
- Taxon
- WHEAT
Triticum aestivumt0 - Treatment
- diske0
- Outcome
- grain nitrogenpercentagee0
- Direction
- loweste0
- Value
- 2.58 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest (2.58 %) and highest (2.77%) grain nitrogenpercentage were observed when disk and chisel plough + disk were used, respectively.”
t0“IN WHEAT”
Claim · model-written summary
Chisel plough plus disk gave the highest grain nitrogen percentage, 2.77%.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- chisel plough + diske0
- Outcome
- grain nitrogenpercentagee0
- Direction
- higheste0
- Value
- 2.77%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest (2.58 %) and highest (2.77%) grain nitrogenpercentage were observed when disk and chisel plough + disk were used, respectively.”
t0“IN WHEAT”
Claim · model-written summary
Chisel plough plus disk maximized nitrogen uptake efficiency and nitrogen use efficiency.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- chisel plough+ diske0
- Outcome
- nitrogen uptake efficiency and nitrogen use efficiencye0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Employing chisel plough+ disk led to the maximum nitrogen uptake efficiency and nitrogen use efficiency.”
t0“IN WHEAT”
Claim · model-written summary
Increasing wheat residue significantly increased grain nitrogen percentage, nitrogen uptake efficiency, and nitrogen use efficiency.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- increasing wheat residue levele0
- Outcome
- Grain nitrogen percentage,nitrogen uptake efficiency and nitrogen use efficiencye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain nitrogen percentage,nitrogen uptake efficiency and nitrogen use efficiency significantly increased with increasing wheat residue level.”
t0“IN WHEAT”
Claim · model-written summary
Applying 75% wheat residue increased nitrogen uptake efficiency by 61.2% versus control.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- wheat residue was applied at 75% ratioe0
- Outcome
- nitrogen uptake efficiencye0
- Direction
- increasede0
- Value
- 61.2%e0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when wheat residue was applied at 75% ratio, nitrogen uptake efficiency increased by 61.2%compared with control treatment.”
t0“IN WHEAT”
Claim · model-written summary
The authors recommend wheat residue with reduced tillage to improve nitrogen use, especially in arid and semi-arid regions.
- Taxon
- WHEATTriticum aestivumt0
- Outcome
- application of wheat residue alongwith reduced tillage could improve nitrogen utilization efficiencye0
- Setting
- arid and semi-arid regionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of wheat residue alongwith reduced tillage could improve nitrogen utilization efficiency, especially in arid and semi-arid regions.”
t0“IN WHEAT”