Abstract
An offseason field experiment was conducted in 2015-2016 at Werer Agricultural Research Center Middle Awash, Afar regional state to determine N-uptake and use efficiency of irrigated bread wheat (Triticum aestivum L.) as influenced by seed and nitrogen fertilizer rates. The experiment was laid down in a randomized complete block design (RCBD) with three replications. The treatments were factorial combination of five nitrogen levels (0, 23, 46, 69, and 92 kgNha-1) with four seed rates (75, 100, 125, and 150 kgha-1). The results of the study showed that both main and interaction effect of nitrogen and seed rates significantly affect N concentrations of the grain and straw, N-uptake, apparent nitrogen recovery, agronomic and physiological efficiencies, nitrogen use efficiency, grain protein content, and N harvest index. The apparent recovery, agronomic and physiological efficiencies and nitrogen use efficiencies decreased with increasing N-rate. Concentration of N and total nitrogen uptake in straw and grain, grain protein and NHI were increased as the N rate increased, while decreased with the increment of seed rate. In conclusion, rate of nitrogen fertilizer applied and seed rate affect the N-uptake and N-use efficiencies.
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Claims 9
Claim · model-written summary
Nitrogen rate and seed rate, alone and in interaction, significantly affected N concentrations of grain and straw and N-uptake in irrigated bread wheat.
- Taxon
- Bread Wheat
Triticum aestivumt0 - Treatment
- nitrogen and seed ratese0
- Outcome
- N concentrations of the grain and straw, N-uptakee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bread Wheat”
e0“both main and interaction effect of nitrogen and seed rates significantly affect N concentrations of the grain and straw, N-uptake, apparent nitrogen recovery, agronomic and physiological efficiencies, nitrogen use efficiency, grain protein content, and N harvest index”
Claim · model-written summary
Nitrogen rate and seed rate, alone and in interaction, significantly affected apparent nitrogen recovery and agronomic and physiological efficiencies.
- Taxon
- Bread WheatTriticum aestivumt0
- Treatment
- nitrogen and seed ratese0
- Outcome
- apparent nitrogen recovery, agronomic and physiological efficienciese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bread Wheat”
e0“both main and interaction effect of nitrogen and seed rates significantly affect N concentrations of the grain and straw, N-uptake, apparent nitrogen recovery, agronomic and physiological efficiencies, nitrogen use efficiency, grain protein content, and N harvest index”
Claim · model-written summary
Nitrogen rate and seed rate, alone and in interaction, significantly affected nitrogen use efficiency, grain protein content and N harvest index.
- Taxon
- Bread WheatTriticum aestivumt0
- Treatment
- nitrogen and seed ratese0
- Outcome
- nitrogen use efficiency, grain protein content, and N harvest indexe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bread Wheat”
e0“both main and interaction effect of nitrogen and seed rates significantly affect N concentrations of the grain and straw, N-uptake, apparent nitrogen recovery, agronomic and physiological efficiencies, nitrogen use efficiency, grain protein content, and N harvest index”
Claim · model-written summary
Apparent recovery and agronomic and physiological efficiencies decreased with increasing N rate.
- Taxon
- Bread WheatTriticum aestivumt0
- Treatment
- increasing N-ratee0
- Outcome
- apparent recovery, agronomic and physiological efficienciese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bread Wheat”
e0“The apparent recovery, agronomic and physiological efficiencies and nitrogen use efficiencies decreased with increasing N-rate”
Claim · model-written summary
Nitrogen use efficiencies decreased with increasing N rate.
- Taxon
- Bread WheatTriticum aestivumt0
- Treatment
- increasing N-ratee0
- Outcome
- nitrogen use efficienciese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bread Wheat”
e0“The apparent recovery, agronomic and physiological efficiencies and nitrogen use efficiencies decreased with increasing N-rate”
Claim · model-written summary
N concentration and total N uptake in straw and grain increased as N rate increased.
- Taxon
- Bread WheatTriticum aestivumt0
- Treatment
- N ratee0
- Outcome
- Concentration of N and total nitrogen uptake in straw and graine0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bread Wheat”
e0“Concentration of N and total nitrogen uptake in straw and grain, grain protein and NHI were increased as the N rate increased, while decreased with the increment of seed rate”
Claim · model-written summary
Grain protein and N harvest index increased as N rate increased.
- Taxon
- Bread WheatTriticum aestivumt0
- Treatment
- N ratee0
- Outcome
- grain protein and NHIe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bread Wheat”
e0“Concentration of N and total nitrogen uptake in straw and grain, grain protein and NHI were increased as the N rate increased, while decreased with the increment of seed rate”
Claim · model-written summary
N concentration and total N uptake in straw and grain decreased as seed rate increased.
- Taxon
- Bread WheatTriticum aestivumt0
- Treatment
- seed ratee0
- Outcome
- Concentration of N and total nitrogen uptake in straw and graine0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bread Wheat”
e0“Concentration of N and total nitrogen uptake in straw and grain, grain protein and NHI were increased as the N rate increased, while decreased with the increment of seed rate”
Claim · model-written summary
Grain protein and N harvest index decreased as seed rate increased.
- Taxon
- Bread WheatTriticum aestivumt0
- Treatment
- seed ratee0
- Outcome
- grain protein and NHIe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bread Wheat”
e0“Concentration of N and total nitrogen uptake in straw and grain, grain protein and NHI were increased as the N rate increased, while decreased with the increment of seed rate”
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