Paper · 2010 · Journal of the Indian Society of Soil Science

Soil Potassium Fractions and Response of Cauliflower and Onion to Potassium

Jag Pal Singh; Sandeep Singh; Vinay Singh

14
claims
20
verbatim quotes
8
citations
2
research areas
✓
Open access

Abstract

Two hundred soil samples collected from Agra district were analyzed for their potassium fractions. The lattice, HCl soluble, fixed, exchangeable and water soluble K contributed 60.4, 29.6, 9.3, 0.64 and 0.06% towards total soil K in these soils. Highly significant positive relationships amongst various fractions of soil K indicated existence of a dynamic equilibrium between different forms of K. Vegetable crops responded significantly to potassium up to 90 kg K2O ha−1. The content and yield of protein in both the crops increased significantly with the addition of potassium. The maximum net return of Rs. 1, 46, 468 and 98, 752 and B:C ratio of 2.24 and 1.55 were recorded in cauliflower and onion, respectively with 120 kg K2O ha−1. Nitrogen uptake by cauliflower and onion progressively increased from 103.8 to 165.5 and 45.2 to 70.0 kg ha−1, respectively with application of 120 kg K2O ha−1. The uptake of P, K and S by both the crops also increased with graded levels of potassium. Percent utilization of added K by cauliflower and onion was maximum with 60 and 90 kg K2O ha−1, respectively.

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 14

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Cauliflower responded significantly to potassium through 90 kg K2O ha−1.

Treatment
potassium up to 90 kg K2O ha−1e0
Outcome
responded significantlye0

Not reportedComparatorDirection

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

Brassica oleracea var. botrytis
Brassica oleracea var. botrytis · TaxonSusan Slater · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Vegetable crops responded significantly to potassium up to 90 kg K2O ha−1.”

✓ located verbatim in the source · abstract, characters 399–473 · show in text ↑
t0

“Cauliflower”

✓ located verbatim in the source · title, characters 41–52 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Onion responded significantly to potassium through 90 kg K2O ha−1.

Taxon
OnionAllium cepat0
Treatment
potassium up to 90 kg K2O ha−1e0
Outcome
responded significantlye0

Not reportedComparatorDirection

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Vegetable crops responded significantly to potassium up to 90 kg K2O ha−1.”

✓ located verbatim in the source · abstract, characters 399–473 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 57–62 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Potassium increased protein content and yield in Cauliflower.

Treatment
addition of potassiume0
Outcome
content and yield of proteine0
Direction
increasede0

Not reportedComparator

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

Brassica oleracea var. botrytis
Brassica oleracea var. botrytis · TaxonSusan Slater · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The content and yield of protein in both the crops increased significantly with the addition of potassium.”

✓ located verbatim in the source · abstract, characters 474–580 · show in text ↑
t0

“Cauliflower”

✓ located verbatim in the source · title, characters 41–52 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Potassium increased protein content and yield in Onion.

Taxon
OnionAllium cepat0
Treatment
addition of potassiume0
Outcome
content and yield of proteine0
Direction
increasede0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The content and yield of protein in both the crops increased significantly with the addition of potassium.”

✓ located verbatim in the source · abstract, characters 474–580 · show in text ↑
t0

“Onion”

✓ located verbatim in the source · title, characters 57–62 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

cauliflower had maximum net return of Rs. 1, 46, 468 with 120 kg K2O ha−1.

Treatment
120 kg K2O ha−1e0
Outcome
net returne0
Direction
maximume0
Value
Rs. 1, 46, 468e0

Not reportedComparator

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

Brassica oleracea var. botrytis
Brassica oleracea var. botrytis · TaxonSusan Slater · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The maximum net return of Rs. 1, 46, 468 and 98, 752 and B:C ratio of 2.24 and 1.55 were recorded in cauliflower and onion, respectively with 120 kg K2O ha−1.”

✓ located verbatim in the source · abstract, characters 581–739 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

onion had maximum net return of 98, 752 with 120 kg K2O ha−1.

Taxon
onionAllium cepae0
Treatment
120 kg K2O ha−1e0
Outcome
net returne0
Direction
maximume0
Value
98, 752e0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The maximum net return of Rs. 1, 46, 468 and 98, 752 and B:C ratio of 2.24 and 1.55 were recorded in cauliflower and onion, respectively with 120 kg K2O ha−1.”

✓ located verbatim in the source · abstract, characters 581–739 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

cauliflower had maximum B:C ratio of 2.24 with 120 kg K2O ha−1.

Treatment
120 kg K2O ha−1e0
Outcome
B:C ratioe0
Direction
maximume0
Value
2.24e0

Not reportedComparator

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

Brassica oleracea var. botrytis
Brassica oleracea var. botrytis · TaxonSusan Slater · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The maximum net return of Rs. 1, 46, 468 and 98, 752 and B:C ratio of 2.24 and 1.55 were recorded in cauliflower and onion, respectively with 120 kg K2O ha−1.”

✓ located verbatim in the source · abstract, characters 581–739 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

onion had maximum B:C ratio of 1.55 with 120 kg K2O ha−1.

Taxon
onionAllium cepae0
Treatment
120 kg K2O ha−1e0
Outcome
B:C ratioe0
Direction
maximume0
Value
1.55e0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The maximum net return of Rs. 1, 46, 468 and 98, 752 and B:C ratio of 2.24 and 1.55 were recorded in cauliflower and onion, respectively with 120 kg K2O ha−1.”

✓ located verbatim in the source · abstract, characters 581–739 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen uptake by cauliflower increased from 103.8 to 165.5 with 120 kg K2O ha−1.

Treatment
120 kg K2O ha−1e0
Outcome
Nitrogen uptakee0
Direction
increasede0
Value
103.8 to 165.5e0

Not reportedComparator

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

Brassica oleracea var. botrytis
Brassica oleracea var. botrytis · TaxonSusan Slater · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Nitrogen uptake by cauliflower and onion progressively increased from 103.8 to 165.5 and 45.2 to 70.0 kg ha−1, respectively with application of 120 kg K2O ha−1.”

✓ located verbatim in the source · abstract, characters 740–900 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen uptake by onion increased from 45.2 to 70.0 kg ha−1 with 120 kg K2O ha−1.

Taxon
onionAllium cepae0
Treatment
120 kg K2O ha−1e0
Outcome
Nitrogen uptakee0
Direction
increasede0
Value
45.2 to 70.0 kg ha−1e0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Nitrogen uptake by cauliflower and onion progressively increased from 103.8 to 165.5 and 45.2 to 70.0 kg ha−1, respectively with application of 120 kg K2O ha−1.”

✓ located verbatim in the source · abstract, characters 740–900 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Graded potassium increased P, K and S uptake by cauliflower.

Treatment
graded levels of potassiume0
Outcome
uptake of P, K and Se0
Direction
increasede0

Not reportedComparator

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

Brassica oleracea var. botrytis
Brassica oleracea var. botrytis · TaxonSusan Slater · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The uptake of P, K and S by both the crops also increased with graded levels of potassium.”

✓ located verbatim in the source · abstract, characters 901–991 · show in text ↑
t0

“cauliflower”

✓ located after whitespace/quote normalisation · title, characters 41–52 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Graded potassium increased P, K and S uptake by onion.

Taxon
onionAllium cepat0
Treatment
graded levels of potassiume0
Outcome
uptake of P, K and Se0
Direction
increasede0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The uptake of P, K and S by both the crops also increased with graded levels of potassium.”

✓ located verbatim in the source · abstract, characters 901–991 · show in text ↑
t0

“onion”

✓ located after whitespace/quote normalisation · title, characters 57–62 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

cauliflower had maximal utilization of added K at 60.

Treatment
60e0
Outcome
Percent utilization of added Ke0
Direction
maximume0

Not reportedComparator

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

Brassica oleracea var. botrytis
Brassica oleracea var. botrytis · TaxonSusan Slater · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Percent utilization of added K by cauliflower and onion was maximum with 60 and 90 kg K2O ha−1, respectively.”

✓ located verbatim in the source · abstract, characters 992–1101 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

onion had maximal utilization of added K at 90 kg K2O ha−1.

Taxon
onionAllium cepae0
Treatment
90 kg K2O ha−1e0
Outcome
Percent utilization of added Ke0
Direction
maximume0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Percent utilization of added K by cauliflower and onion was maximum with 60 and 90 kg K2O ha−1, respectively.”

✓ located verbatim in the source · abstract, characters 992–1101 · show in text ↑

potassium · nutrient: content · Brassica oleracea (wild cabbage)Positive and negative results

15 papers: 11 positive, 4 negative or no effect

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potassium · yield · Brassica oleracea (wild cabbage)Positive and negative results

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  2. no effect
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potassium · yield · Allium cepa (onion)Positive and negative results

59 papers: 54 positive, 5 negative or no effect

53 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. no effect
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potassium · nutrient: content · Allium cepa (onion)Results agree

12 papers: 12 positive, 0 negative or no effect

11 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

8 papers more in this group

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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.