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.
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Claims 11
Claim · model-written summary
Nitrogen and potassium had a significant positive interaction.
- Taxon
- POTATO
Solanum tuberosumt0 - Treatment
- N and Ke0
- Outcome
- positive interactione0
- Direction
- positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“There was significant positive interaction between N and K.”
t0“POTATO”
Claim · model-written summary
Increasing potassium at each nitrogen level increased tuber yield.
- Taxon
- potato
Solanum tuberosume0 - 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.

Verbatim
e0“At each level of N, increasing levels of K application increased the tuber yield, N and K uptake by potato at harvest.”
t0“POTATO”
Claim · model-written summary
Increasing potassium at each nitrogen level increased potato nitrogen uptake.
- Taxon
- potato
Solanum tuberosume0 - 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.

Verbatim
e0“At each level of N, increasing levels of K application increased the tuber yield, N and K uptake by potato at harvest.”
t0“POTATO”
Claim · model-written summary
Increasing potassium at each nitrogen level increased potato potassium uptake.
- Taxon
- potato
Solanum tuberosume0 - 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.

Verbatim
e0“At each level of N, increasing levels of K application increased the tuber yield, N and K uptake by potato at harvest.”
t0“POTATO”
Claim · model-written summary
Potassium and nitrogen increased large and medium tuber grade yield.
- Taxon
- POTATO
Solanum tuberosumt0 - 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.

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.”
t0“POTATO”
Claim · model-written summary
Potassium and nitrogen decreased small and very small tubers.
- Taxon
- POTATO
Solanum tuberosumt0 - 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.

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.”
t0“POTATO”
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.
- Taxon
- POTATO
Solanum tuberosumt0 - 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.

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.”
t0“POTATO”
Claim · model-written summary
Potassium recovery efficiency increased at 100 kg K 2 O and 150 kg N/ ha.
- Taxon
- potato
Solanum tuberosume0 - 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.

Verbatim
e0“The recovery efficiencies of K and N fertilizer on potato increased at 100 kg K 2 O and 150 kg N/ ha.”
t0“POTATO”
Claim · model-written summary
Nitrogen recovery efficiency increased at 100 kg K 2 O and 150 kg N/ ha.
- Taxon
- potato
Solanum tuberosume0 - 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.

Verbatim
e0“The recovery efficiencies of K and N fertilizer on potato increased at 100 kg K 2 O and 150 kg N/ ha.”
t0“POTATO”
Claim · model-written summary
Potassium application reduced tuber weight loss and rottage.
- Taxon
- POTATO
Solanum tuberosumt0 - 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.

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.”
t0“POTATO”
Claim · model-written summary
Increasing nitrogen increased weight loss due to tuber rottage.
- Taxon
- POTATO
Solanum tuberosumt0 - 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.

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.”
t0“POTATO”
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