Abstract
The potato is crucial for food security among smallholder farmers in Ethiopia, but issues related to variety selection and fertilizer management often hinder its yield potential. A study conducted during the 2022 growing season in the Miarb Azernet district evaluated the performance of four potato varieties Local, Gera, Gudene, and Belete under different applications of nitrogen–phosphorus–sulfur (NPS) fertilizer rates (0, 50, 100, 150, 200, and 250 kg ha −1 ) using a randomized complete block design (RCBD) with three replications. The results revealed significant interactions between the potato varieties and NPS fertilizer applications, which affected key growth parameters and overall yield. The Belete variety showed outstanding results among the tested varieties when treated with 250 kg NPS ha −1 , resulting in a plant height of 97.85 cm, a marketable yield of 48.26 t ha −1 , a total yield of 49.68 t ha −1 , an average tuber weight of 75.44 g, and 46.21 tubers per hill. In contrast, the unfertilized Local variety yielded the least. Nutrient uptake and economic analysis indicated that applying 200 NPS kg ha −1 to the Belete variety resulted in the highest marginal yield of 79.1% and a significant net benefit of 693,740 ETB ha −1 . While these findings strongly support the use of Belete variety at 250 kg NPS ha −1 , further research is needed to validate these results and extend the recommendations to similar agroecological conditions and farming practices.
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Claims 10
Claim · model-written summary
Potato variety and NPS fertilizer rate interacted significantly for growth and yield.
- Taxon
- potato
Solanum tuberosume0 - Material
- potato varietiese0
- Treatment
- NPS fertilizer applicationse0
- Outcome
- key growth parameters and overall yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant interactions between the potato varieties and NPS fertilizer applications, which affected key growth parameters and overall yield”
Claim · model-written summary
Belete at 250 kg NPS ha −1 reached 97.85 cm plant height.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Beletee0
- Treatment
- 250 kg NPS ha −1e0
- Outcome
- plant heighte0
- Direction
- outstandinge0
- Value
- 97.85 cme0
- Comparator
- tested varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Belete variety showed outstanding results among the tested varieties when treated with 250 kg NPS ha −1 , resulting in a plant height of 97.85 cm”
t0“Potato”
Claim · model-written summary
Belete at 250 kg NPS ha −1 reached 48.26 t ha −1 marketable yield.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Beletee0
- Treatment
- 250 kg NPS ha −1e0
- Outcome
- marketable yielde0
- Direction
- outstandinge0
- Value
- 48.26 t ha −1e0
- Comparator
- tested varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Belete variety showed outstanding results among the tested varieties when treated with 250 kg NPS ha −1 , resulting in a plant height of 97.85 cm, a marketable yield of 48.26 t ha −1”
t0“Potato”
Claim · model-written summary
Belete at 250 kg NPS ha −1 reached 49.68 t ha −1 total yield.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Beletee0
- Treatment
- 250 kg NPS ha −1e0
- Outcome
- total yielde0
- Direction
- outstandinge0
- Value
- 49.68 t ha −1e0
- Comparator
- tested varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Belete variety showed outstanding results among the tested varieties when treated with 250 kg NPS ha −1 , resulting in a plant height of 97.85 cm, a marketable yield of 48.26 t ha −1 , a total yield of 49.68 t ha −1”
t0“Potato”
Claim · model-written summary
Belete at 250 kg NPS ha −1 reached 75.44 g average tuber weight.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Beletee0
- Treatment
- 250 kg NPS ha −1e0
- Outcome
- average tuber weighte0
- Direction
- outstandinge0
- Value
- 75.44 ge0
- Comparator
- tested varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Belete variety showed outstanding results among the tested varieties when treated with 250 kg NPS ha −1 , resulting in a plant height of 97.85 cm, a marketable yield of 48.26 t ha −1 , a total yield of 49.68 t ha −1 , an average tuber weight of 75.44 g”
t0“Potato”
Claim · model-written summary
Belete at 250 kg NPS ha −1 produced 46.21 tubers per hill.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Beletee0
- Treatment
- 250 kg NPS ha −1e0
- Outcome
- tubers per hille0
- Direction
- outstandinge0
- Value
- 46.21 tubers per hille0
- Comparator
- tested varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Belete variety showed outstanding results among the tested varieties when treated with 250 kg NPS ha −1 , resulting in a plant height of 97.85 cm, a marketable yield of 48.26 t ha −1 , a total yield of 49.68 t ha −1 , an average tuber weight of 75.44 g, and 46.21 tubers per hill”
t0“Potato”
Claim · model-written summary
The unfertilized Local variety had the lowest yield.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Locale0
- Treatment
- unfertilizede0
- Outcome
- yielded the leaste0
- Direction
- leaste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the unfertilized Local variety yielded the least”
t0“Potato”
Claim · model-written summary
Belete at 200 NPS kg ha −1 produced the highest marginal yield, 79.1%.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Beletee0
- Treatment
- 200 NPS kg ha −1e0
- Outcome
- marginal yielde0
- Direction
- higheste0
- Value
- 79.1%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying 200 NPS kg ha −1 to the Belete variety resulted in the highest marginal yield of 79.1%”
t0“Potato”
Claim · model-written summary
Belete at 200 NPS kg ha −1 gave a net benefit of 693,740 ETB ha −1.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Beletee0
- Treatment
- 200 NPS kg ha −1e0
- Outcome
- net benefite0
- Value
- 693,740 ETB ha −1e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying 200 NPS kg ha −1 to the Belete variety resulted in the highest marginal yield of 79.1% and a significant net benefit of 693,740 ETB ha −1”
t0“Potato”
Claim · model-written summary
The authors support Belete at 250 kg NPS ha −1, pending validation in similar agroecological conditions.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Beletee0
- Outcome
- use of Belete variety at 250 kg NPS ha −1e0
- Qualifier
- further research is needed to validate these resultse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these findings strongly support the use of Belete variety at 250 kg NPS ha −1 , further research is needed to validate these results and extend the recommendations to similar agroecological conditions and farming practices”
t0“Potato”
The same questions in other papers
nitrogen · yield · Solanum tuberosum (potato)Results differ
108 papers in the same direction as this paper · 20 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- negative
- negative
128 papers more in this group
See all 132 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.