Paper · 2012 · Potato Journal/Journal of the Indian Potato Association

EFFECT OF POTASSIUM NUTRITION ON POTATO YIELD, QUALITY AND NUTRIENT USE EFFICIENCY UNDER VARIED LEVELS OF NITROGEN APPLICATION

Sanjay Kumar Singh; S. S. Lal

11
claims
22
verbatim quotes
44
citations
2
research areas
✓
Open access

Abstract

A field trail was conducted during winter season of 2009-10 and 2010-11 at Central Potato Research station, Patna on sandy loam soil under irrigated condition to find suitable dose of potassium for potato cultivar Kufri Pukhraj for optimum yield, quality and nutrient use efficiency under different nitrogen levels. There was significant positive interaction between N and K. At each level of N, increasing levels of K application increased the tuber yield, N and K uptake by potato at harvest. Potassium and N application improved tuber size by increasing the large and medium grade yield and decreasing the small and very small sized tuber. Maximum yield of 39.83 t /ha was obtained when N and K was applied @ 225 kg/ ha and 150 kg K 2 O/ ha against a tuber yield of only 14.36 t/ ha without N and K application. The recovery efficiencies of K and N fertilizer on potato increased at 100 kg K 2 O and 150 kg N/ ha. There was less weight loss and rottage of tubers with potassium application whereas with increase in nitrogen levels there was increase in weight loss due to tuber rottage.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 11

Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen and potassium had a significant positive interaction.

Treatment
N and Ke0
Outcome
positive interactione0
Direction
positivee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“There was significant positive interaction between N and K.”

✓ located verbatim in the source · abstract, characters 316–375 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 33–39 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing potassium at each nitrogen level increased tuber yield.

Treatment
increasing levels of K applicatione0
Outcome
tuber yielde0
Direction
increasede0
Comparator
each level of Ne0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“At each level of N, increasing levels of K application increased the tuber yield, N and K uptake by potato at harvest.”

✓ located verbatim in the source · abstract, characters 376–494 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 33–39 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing potassium at each nitrogen level increased potato nitrogen uptake.

Treatment
increasing levels of K applicatione0
Outcome
Ne0
Direction
increasede0
Comparator
each level of Ne0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“At each level of N, increasing levels of K application increased the tuber yield, N and K uptake by potato at harvest.”

✓ located verbatim in the source · abstract, characters 376–494 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 33–39 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing potassium at each nitrogen level increased potato potassium uptake.

Treatment
increasing levels of K applicatione0
Outcome
K uptakee0
Direction
increasede0
Comparator
each level of Ne0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“At each level of N, increasing levels of K application increased the tuber yield, N and K uptake by potato at harvest.”

✓ located verbatim in the source · abstract, characters 376–494 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 33–39 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium and nitrogen increased large and medium tuber grade yield.

Treatment
Potassium and N applicatione0
Outcome
large and medium grade yielde0
Direction
increasinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Potassium and N application improved tuber size by increasing the large and medium grade yield and decreasing the small and very small sized tuber.”

✓ located verbatim in the source · abstract, characters 495–642 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 33–39 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium and nitrogen decreased small and very small tubers.

Treatment
Potassium and N applicatione0
Outcome
small and very small sized tubere0
Direction
decreasinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Potassium and N application improved tuber size by increasing the large and medium grade yield and decreasing the small and very small sized tuber.”

✓ located verbatim in the source · abstract, characters 495–642 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 33–39 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The maximum tuber yield was 39.83 t /ha at the stated nitrogen and potassium rates versus 14.36 t/ ha without either.

Treatment
225 kg/ ha and 150 kg K 2 O/ hae0
Outcome
yielde0
Direction
Maximume0
Value
39.83 t /hae0
Qualifier
14.36 t/ hae0
Comparator
without N and K applicatione0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Maximum yield of 39.83 t /ha was obtained when N and K was applied @ 225 kg/ ha and 150 kg K 2 O/ ha against a tuber yield of only 14.36 t/ ha without N and K application.”

✓ located verbatim in the source · abstract, characters 643–814 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 33–39 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium recovery efficiency increased at 100 kg K 2 O and 150 kg N/ ha.

Treatment
100 kg K 2 O and 150 kg N/ hae0
Outcome
recovery efficiencies of Ke0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The recovery efficiencies of K and N fertilizer on potato increased at 100 kg K 2 O and 150 kg N/ ha.”

✓ located verbatim in the source · abstract, characters 815–916 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 33–39 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen recovery efficiency increased at 100 kg K 2 O and 150 kg N/ ha.

Treatment
100 kg K 2 O and 150 kg N/ hae0
Outcome
recovery efficiencies of K and N fertilizere0
Direction
increasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The recovery efficiencies of K and N fertilizer on potato increased at 100 kg K 2 O and 150 kg N/ ha.”

✓ located verbatim in the source · abstract, characters 815–916 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 33–39 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium application reduced tuber weight loss and rottage.

Treatment
potassium applicatione0
Outcome
weight loss and rottage of tuberse0
Direction
lesse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“There was less weight loss and rottage of tubers with potassium application whereas with increase in nitrogen levels there was increase in weight loss due to tuber rottage.”

✓ located verbatim in the source · abstract, characters 917–1089 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 33–39 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing nitrogen increased weight loss due to tuber rottage.

Treatment
increase in nitrogen levelse0
Outcome
weight loss due to tuber rottagee0
Direction
increasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“There was less weight loss and rottage of tubers with potassium application whereas with increase in nitrogen levels there was increase in weight loss due to tuber rottage.”

✓ located verbatim in the source · abstract, characters 917–1089 · show in text ↑
t0

“POTATO”

✓ located verbatim in the source · title, characters 33–39 · show in text ↑

potassium · yield · Solanum tuberosum (potato)Results differ

69 papers: 61 positive, 8 negative or no effect

60 papers in the same direction as this paper · 6 in the opposite direction · 2 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

65 papers more in this group

See all 69 papers →

nitrogen · yield · Solanum tuberosum (potato)Results differ

132 papers: 109 positive, 23 negative or no effect

108 papers in the same direction as this paper · 20 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

128 papers more in this group

See all 132 papers →

potassium · nutrient: content · Solanum tuberosum (potato)Positive and negative results

17 papers: 13 positive, 4 negative or no effect

12 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. positive
  3. positive

13 papers more in this group

See all 17 papers →

nitrogen · quality: postharvest · Solanum tuberosum (potato)Positive and negative results

28 papers: 23 positive, 5 negative or no effect

4 papers in the same direction as this paper · 23 in the opposite direction

  1. positive
  2. positive
  3. positive

24 papers more in this group

See all 28 papers →

potassium · quality: postharvest · Solanum tuberosum (potato)Results agree

14 papers: 14 positive, 0 negative or no effect

13 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

10 papers more in this group

See all 14 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.