Abstract
The present work evaluated the effect of soil (S) and foliage (F) applied potassium on the growth, yield, and quality of potato plants. Potassium was added in soil at the recommended rate for all the treatments combining mineral fertilizers with K-feldspar and biofertilizers, while foliar spraying included the application of potassium citrate (PC), potassium silicate (PS), and monopotassium phosphate (MP). The obtained results showed that plant height was highest following treatment with 100% mineral potassium fertilizer under the foliar application of MP, while the content of P, K, and total carbohydrates in leaves also increased with the same fertilization treatment. On the other hand, the highest values for number of stems and fresh and dry weight per plant, as well as the highest nitrogen content in leaves, were obtained after the addition of mineral potassium fertilizer and the foliar spraying of PC, regardless of the growing season. Yield parameters were positively affected by the combination of mineral potassium fertilizers (100% or 80% K2SO4 + 20% K-feldspar + biofertilizer) and the foliar spraying of MP, while the total nitrogen, protein, amino acids, potassium, phosphorus, and starch content of tubers were positively affected by the same mineral fertilizer treatments combined with foliar spraying of MP or CP. In conclusion, the application of mineral potassium fertilizer with foliar spraying of MP or CP increased most of the plant growth- and tuber chemical composition-related parameters. These results highlight the importance of potassium fertilizer regimes for achieving high tuber yields and improving the quality of tubers in a sustainable and cost-effective manner.
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Claims 11
Claim · model-written summary
Plant height was highest under 100% mineral potassium fertilizer with foliar MP.
- Taxon
- Potato
Solanum tuberosumt0 - Treatment
- 100% mineral potassium fertilizer under the foliar application of MPe0
- Outcome
- plant heighte0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height was highest following treatment with 100% mineral potassium fertilizer under the foliar application of MP”
t0“Potato”
Claim · model-written summary
Leaf P, K and total carbohydrate contents increased under the same treatment.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- same fertilization treatmente0
- Outcome
- content of P, K, and total carbohydrates in leavese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content of P, K, and total carbohydrates in leaves also increased with the same fertilization treatment”
t0“Potato”
Claim · model-written summary
Stem number and plant fresh and dry weight were highest after mineral potassium fertilizer plus foliar PC.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- addition of mineral potassium fertilizer and the foliar spraying of PCe0
- Outcome
- number of stems and fresh and dry weight per plante0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest values for number of stems and fresh and dry weight per plant, as well as the highest nitrogen content in leaves, were obtained after the addition of mineral potassium fertilizer and the foliar spraying of PC”
t0“Potato”
Claim · model-written summary
Leaf nitrogen content was highest after mineral potassium fertilizer plus foliar PC.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- addition of mineral potassium fertilizer and the foliar spraying of PCe0
- Outcome
- nitrogen content in leavese0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest values for number of stems and fresh and dry weight per plant, as well as the highest nitrogen content in leaves, were obtained after the addition of mineral potassium fertilizer and the foliar spraying of PC”
t0“Potato”
Claim · model-written summary
Yield parameters improved with 100% mineral potassium fertilizer plus foliar MP.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- 100%e0
- Outcome
- Yield parameterse0
- Direction
- positively affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield parameters were positively affected by the combination of mineral potassium fertilizers (100% or 80% K2SO4 + 20% K-feldspar + biofertilizer) and the foliar spraying of MP”
t0“Potato”
Claim · model-written summary
Yield parameters improved with 80% K2SO4 plus 20% K-feldspar, biofertilizer and foliar MP.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- 80% K2SO4 + 20% K-feldspar + biofertilizere0
- Outcome
- Yield parameterse0
- Direction
- positively affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield parameters were positively affected by the combination of mineral potassium fertilizers (100% or 80% K2SO4 + 20% K-feldspar + biofertilizer) and the foliar spraying of MP”
t0“Potato”
Claim · model-written summary
Tuber nitrogen, protein and amino acids improved with the mineral potassium regimes and foliar MP.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- same mineral fertilizer treatments combined with foliar spraying of MPe0
- Outcome
- total nitrogen, protein, amino acidse0
- Direction
- positively affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total nitrogen, protein, amino acids, potassium, phosphorus, and starch content of tubers were positively affected by the same mineral fertilizer treatments combined with foliar spraying of MP or CP”
t0“Potato”
Claim · model-written summary
Tuber potassium, phosphorus and starch content improved with the mineral potassium regimes and foliar MP.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- same mineral fertilizer treatments combined with foliar spraying of MPe0
- Outcome
- potassium, phosphorus, and starch content of tuberse0
- Direction
- positively affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total nitrogen, protein, amino acids, potassium, phosphorus, and starch content of tubers were positively affected by the same mineral fertilizer treatments combined with foliar spraying of MP or CP”
t0“Potato”
Claim · model-written summary
Tuber nitrogen, protein and amino acids improved with the mineral potassium regimes and foliar CP.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- foliar spraying of MP or CPe0
- Outcome
- total nitrogen, protein, amino acidse0
- Direction
- positively affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total nitrogen, protein, amino acids, potassium, phosphorus, and starch content of tubers were positively affected by the same mineral fertilizer treatments combined with foliar spraying of MP or CP”
t0“Potato”
Claim · model-written summary
Tuber potassium, phosphorus and starch content improved with the mineral potassium regimes and foliar CP.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- foliar spraying of MP or CPe0
- Outcome
- potassium, phosphorus, and starch content of tuberse0
- Direction
- positively affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total nitrogen, protein, amino acids, potassium, phosphorus, and starch content of tubers were positively affected by the same mineral fertilizer treatments combined with foliar spraying of MP or CP”
t0“Potato”
Claim · model-written summary
The authors recommend potassium fertilizer regimes to improve potato yield and tuber quality.
Verbatim
e0“These results highlight the importance of potassium fertilizer regimes for achieving high tuber yields and improving the quality of tubers”
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See all 11 papers →8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.