Paper · 2011 · Journal of Plant Nutrition

EFFECT OF NITROGEN AND SULFUR FERTILIZATION ON YIELD COMPONENTS, SEED AND OIL YIELDS OF CANOLA

Gulzar Ahmad; Amanullah Jan; Muhammad Arif; et al.

11
claims
22
verbatim quotes
33
citations
1
research areas
—
Not open access

Abstract

Field experiments were conducted to evaluate the effects of nitrogen (N) and sulfur (S) levels and their methods of application on canola. Branches plant−1, pods plant−1 and biological yield significantly increased with increase in nitrogen level and no significant increase in seed pod−1 and seed and oil yields occurred beyond 120 kg N ha−1. However, thousand seed weight consistently decreased with increasing level of nitrogen. Pods plant−1 and biological yield continually increased with increase in sulfur level. Alternatively, significant increase in branches plant−1, seed pod−1, seed weight, seed and oil yields was noted with increase in sulfur level up to 40 kg ha−1. Applications of sulfur and nitrogen in split significantly decreased seed yield as compared to sole applications. It is concluded that sulfur and nitrogen application as sole at the rate of 40 and 120 kg ha−1, respectively performed better than the rest of their levels and method of application.

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

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Increasing nitrogen significantly increased branches per plant, pods per plant and biological yield.

Treatment
increase in nitrogen levele0
Outcome
Branches plant−1, pods plant−1 and biological yielde0
Direction
increasede0

Not reportedComparator

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Branches plant−1, pods plant−1 and biological yield significantly increased with increase in nitrogen level”

✓ located verbatim in the source · abstract, characters 139–246 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Seed count per pod did not increase significantly beyond 120 kg N ha−1.

Treatment
beyond 120 kg N ha−1e0
Outcome
seed pod−1e0
Direction
no significant increasee0

Not reportedComparator

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“no significant increase in seed pod−1 and seed and oil yields occurred beyond 120 kg N ha−1”

✓ located verbatim in the source · abstract, characters 251–342 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Seed yield did not increase significantly beyond 120 kg N ha−1.

Treatment
beyond 120 kg N ha−1e0
Outcome
seede0
Direction
no significant increasee0

Not reportedComparator

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“no significant increase in seed pod−1 and seed and oil yields occurred beyond 120 kg N ha−1”

✓ located verbatim in the source · abstract, characters 251–342 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Oil yield did not increase significantly beyond 120 kg N ha−1.

Treatment
beyond 120 kg N ha−1e0
Outcome
oil yieldse0
Direction
no significant increasee0

Not reportedComparator

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“no significant increase in seed pod−1 and seed and oil yields occurred beyond 120 kg N ha−1”

✓ located verbatim in the source · abstract, characters 251–342 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Thousand seed weight declined as nitrogen level increased.

Treatment
increasing level of nitrogene0
Outcome
thousand seed weighte0
Direction
decreasede0

Not reportedComparator

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“thousand seed weight consistently decreased with increasing level of nitrogen”

✓ located verbatim in the source · abstract, characters 353–430 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing sulfur increased pods per plant and biological yield.

Treatment
increase in sulfur levele0
Outcome
Pods plant−1 and biological yielde0
Direction
increasede0

Not reportedComparator

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Pods plant−1 and biological yield continually increased with increase in sulfur level”

✓ located verbatim in the source · abstract, characters 432–517 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sulfur up to 40 kg ha−1 significantly increased branches per plant, seeds per pod and seed weight.

Treatment
increase in sulfur level up to 40 kg ha−1e0
Outcome
branches plant−1, seed pod−1, seed weighte0
Direction
increasee0

Not reportedComparator

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“significant increase in branches plant−1, seed pod−1, seed weight, seed and oil yields was noted with increase in sulfur level up to 40 kg ha−1”

✓ located verbatim in the source · abstract, characters 534–677 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sulfur up to 40 kg ha−1 significantly increased seed yield.

Treatment
increase in sulfur level up to 40 kg ha−1e0
Outcome
seede0
Direction
increasee0

Not reportedComparator

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“significant increase in branches plant−1, seed pod−1, seed weight, seed and oil yields was noted with increase in sulfur level up to 40 kg ha−1”

✓ located verbatim in the source · abstract, characters 534–677 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sulfur up to 40 kg ha−1 significantly increased oil yield.

Treatment
increase in sulfur level up to 40 kg ha−1e0
Outcome
oil yieldse0
Direction
increasee0

Not reportedComparator

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“significant increase in branches plant−1, seed pod−1, seed weight, seed and oil yields was noted with increase in sulfur level up to 40 kg ha−1”

✓ located verbatim in the source · abstract, characters 534–677 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Split sulfur and nitrogen application significantly reduced seed yield versus sole application.

Treatment
Applications of sulfur and nitrogen in splite0
Outcome
seed yielde0
Direction
decreasede0
Comparator
sole applicationse0

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Applications of sulfur and nitrogen in split significantly decreased seed yield as compared to sole applications”

✓ located verbatim in the source · abstract, characters 679–791 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommend sole sulfur at 40 kg ha−1 and nitrogen at 120 kg ha−1.

Treatment
sulfur and nitrogen application as sole at the rate of 40 and 120 kg ha−1e0
Outcome
performed bettere0

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“sulfur and nitrogen application as sole at the rate of 40 and 120 kg ha−1, respectively performed better than the rest of their levels and method of application”

✓ located verbatim in the source · abstract, characters 814–974 · show in text ↑
t0

“CANOLA”

✓ located verbatim in the source · title, characters 88–94 · show in text ↑

sulfur atom · yield · Brassica napus (oilseed rape)Results differ

59 papers: 49 positive, 10 negative or no effect

48 papers in the same direction as this paper · 10 in the opposite direction

  1. no effect
  2. negative
  3. positive

55 papers more in this group

See all 59 papers →

nitrogen · yield · Brassica napus (oilseed rape)Positive and negative results

239 papers: 198 positive, 41 negative or no effect

197 papers in the same direction as this paper · 34 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
  2. positive
  3. positive

235 papers more in this group

See all 239 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.