Abstract
The purpose of this study was to determine optimum rates of soil dressing with nitrogen (N) and potassium (K) fertilization in the cultivation of potato with purple–blue peel and flesh, affecting the qualitative composition of tubers of a less known potato cultivar called Blue Congo.The experimental results proved that the optimum rates of fertilizers applied to soil for the cultivar Blue Congo are 80 kg N ha−1 and 150 kg K ha−1. Application of 120 kg N ha−1 caused a decrease in the content of all macro- and micro-nutrients. In contrast, the content of all macronutrients was observed to increase up to the rate of 150 kg K ha−1.Micronutrients responded to the increase in the K rate in different ways. No effect of the differentiated rates of K was noted in the case of iron. Vitamin C responded by its lower content to the increased rates of both N and K. It was determined that isoleucine was the limiting amino acid for the cv. Blue Congo potato. The highest level of isoleucine was found at the N rate of 80 kg ha−1.
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Claims 8
Claim · model-written summary
The authors identified 80 kg N ha−1 and 150 kg K ha−1 as optimum fertilizer rates.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Blue Congoe0
- Outcome
- optimum rates of fertilizers applied to soile0
- Value
- 80 kg N ha−1 and 150 kg K ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the optimum rates of fertilizers applied to soil for the cultivar Blue Congo are 80 kg N ha−1 and 150 kg K ha−1.”
t0“potato cultivar Blue Congo”
Claim · model-written summary
Applying 120 kg N ha−1 decreased macro- and micro-nutrient content.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Blue Congot0
- Treatment
- 120 kg N ha−1e0
- Outcome
- content of all macro- and micro-nutrientse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 120 kg N ha−1 caused a decrease in the content of all macro- and micro-nutrients.”
t0“potato cultivar Blue Congo”
Claim · model-written summary
Macronutrient content increased with potassium up to 150 kg K ha−1.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Blue Congot0
- Treatment
- 150 kg K ha−1e0
- Outcome
- content of all macronutrientse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the content of all macronutrients was observed to increase up to the rate of 150 kg K ha−1.”
t0“potato cultivar Blue Congo”
Claim · model-written summary
Micronutrients responded differently to increasing potassium rate.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Blue Congot0
- Treatment
- increase in the K ratee0
- Outcome
- Micronutrientse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Micronutrients responded to the increase in the K rate in different ways.”
t0“potato cultivar Blue Congo”
Claim · model-written summary
Potassium rate did not affect iron content.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Blue Congot0
- Treatment
- differentiated rates of Ke0
- Outcome
- irone0
- Direction
- No effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No effect of the differentiated rates of K was noted in the case of iron.”
t0“potato cultivar Blue Congo”
Claim · model-written summary
Increasing nitrogen rates lowered vitamin C content.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Blue Congot0
- Treatment
- increased rates of both N and Ke0
- Outcome
- Vitamin Ce0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vitamin C responded by its lower content to the increased rates of both N and K.”
t0“potato cultivar Blue Congo”
Claim · model-written summary
Isoleucine was the limiting amino acid in Blue Congo potato.
- Taxon
- potatoSolanum tuberosume0
- Material
- Blue Congoe0
- Outcome
- isoleucine was the limiting amino acide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was determined that isoleucine was the limiting amino acid for the cv. Blue Congo potato.”
Claim · model-written summary
The highest isoleucine level occurred at 80 kg ha−1 nitrogen.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Blue Congot0
- Treatment
- N rate of 80 kg ha−1e0
- Outcome
- level of isoleucinee0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest level of isoleucine was found at the N rate of 80 kg ha−1.”
t0“potato cultivar Blue Congo”
The same questions in other papers
nitrogen · quality: phytochemicals · Solanum tuberosum (potato)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- positive
- positive
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1 paper more in this group
See all 5 papers →potassium · quality: phytochemicals · Solanum tuberosum (potato)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 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.