Abstract
Bread wheat is a vital staple crop in Ethiopia, yet yields remain critically low due to suboptimal agronomic practices. A significant problem persists in the Kambeta Zone, where low soil fertility, excessive seeding rates, and blanket fertilizer recommendations lead to poor plant stands and severe nutrient deficiencies (N, P, S, B), resulting in unacceptably low nutrient use efficiency (NUE <40%). While blended NPSB fertilizer offers a potential solution, the precise interaction between seed rates, NPSB levels, and modern wheat varieties remains unquantified, hindering the development of localized, efficient management strategies. This study therefore investigated these interactions on varieties Wane and Danda. A factorial experiment tested three seed rates (75, 100, 125 kg ha⁻¹) and four NPSB levels (0, 50, 100, 150 kg ha⁻¹). Results demonstrated that the variety Danda consistently outperformed Wane at grain yield and yield components. The optimal combination was a seed rate of 125 kg ha⁻¹ with 150 kg ha⁻¹ NPSB, which achieved the highest grain yield (5.2 t ha⁻¹) and superior NUE by significantly enhancing productive tillers, thousand-kernel weight, and harvest index. This research provides a definitive strategy to close the yield gap by synchronizing seeding density with adequate NPSB fertilization, offering farmers a precise recipe to enhance productivity and nutrient efficiency in wheat cultivation.
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Claims 4
Claim · model-written summary
Danda consistently outperformed Wane in grain yield and yield components.
- Taxon
- bread wheat
Triticum aestivumt0 - Material
- Dandae1
- Outcome
- grain yield and yield componentse1
- Direction
- outperformede1
- Comparator
- Wanee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the variety Danda consistently outperformed Wane at grain yield and yield components”
t0“bread wheat (Triticum aestivum L.) in Kambeta Zone, Central Ethiopia”
Claim · model-written summary
Seed rate of 125 kg/ha with 150 kg/ha NPSB gave the highest grain yield, 5.2 t/ha.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- a seed rate of 125 kg ha⁻¹ with 150 kg ha⁻¹ NPSBe2
- Outcome
- grain yielde2
- Direction
- higheste2
- Value
- 5.2 t ha⁻¹e2
- Setting
- Kambeta Zone, Central Ethiopiat0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The optimal combination was a seed rate of 125 kg ha⁻¹ with 150 kg ha⁻¹ NPSB, which achieved the highest grain yield (5.2 t ha⁻¹)”
t0“bread wheat (Triticum aestivum L.) in Kambeta Zone, Central Ethiopia”
Claim · model-written summary
Seed rate of 125 kg/ha with 150 kg/ha NPSB gave superior nutrient use efficiency.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- a seed rate of 125 kg ha⁻¹ with 150 kg ha⁻¹ NPSBe2
- Outcome
- NUEe3
- Direction
- superiore3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The optimal combination was a seed rate of 125 kg ha⁻¹ with 150 kg ha⁻¹ NPSB, which achieved the highest grain yield (5.2 t ha⁻¹)”
e3“superior NUE by significantly enhancing productive tillers, thousand-kernel weight, and harvest index”
t0“bread wheat (Triticum aestivum L.) in Kambeta Zone, Central Ethiopia”
Claim · model-written summary
Seed rate of 125 kg/ha with 150 kg/ha NPSB significantly enhanced productive tillers, thousand-kernel weight and harvest index.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- a seed rate of 125 kg ha⁻¹ with 150 kg ha⁻¹ NPSBe2
- Outcome
- productive tillers, thousand-kernel weight, and harvest indexe3
- Direction
- enhancinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The optimal combination was a seed rate of 125 kg ha⁻¹ with 150 kg ha⁻¹ NPSB, which achieved the highest grain yield (5.2 t ha⁻¹)”
e3“superior NUE by significantly enhancing productive tillers, thousand-kernel weight, and harvest index”
t0“bread wheat (Triticum aestivum L.) in Kambeta Zone, Central Ethiopia”
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density · yield · Triticum aestivum (wheat)Positive and negative results
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