Paper · 1989 · The Journal of Agricultural Science

Response of mint species to nitrogen fertilization

V. P. Singh; B. N. Chatterjee; D. V. Singh

17
claims
22
verbatim quotes
35
citations
2
research areas
—
Not open access

Abstract

SUMMARY Herbage and oil yields of Mentha arvensis (Japanese mint), M. piperita (peppermint) and M. spicata (spearmint) increased significantly with N fertilization up to 100 kg N/ha and those of M. citrata (bergamot mint) with up to 150 kg N/ha. Plant height, leaf: stem ratio and leaf area index increased with N application; and oil content decreased in all the species. Economic optimum doses of N for M. arvensis, M. piperita and M. spicata were 167, 153 and 145 kg N/ha, respectively and their oil yields expected from the response equation were 190, 103 and 50 kg/ha, respectively. The calculated optimum fertilizer rate for M. citrata was 225 kg N/ha, giving a yield of 193 kg oil/ha. Oil quality did not vary appreciably with N fertilization.

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Claims 17

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Herbage and oil yields of Mentha arvensis increased significantly with N fertilization up to 100 kg N/ha.

Taxon
Mentha arvensisMentha arvensise0
Treatment
N fertilizatione0
Outcome
Herbage and oil yieldse0
Direction
increasede0
Value
100 kg N/hae0

Not reportedComparator

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

Mentha arvensis
Mentha arvensis · TaxonMichael Becker · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Herbage and oil yields of Mentha arvensis (Japanese mint), M. piperita (peppermint) and M. spicata (spearmint) increased significantly with N fertilization up to 100 kg N/ha and those of M. citrata (bergamot mint) with up to 150 kg N/ha.”

✓ located verbatim in the source · abstract, characters 8–245 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Herbage and oil yields of M. piperita increased significantly with N fertilization up to 100 kg N/ha.

Taxon
M. piperitaMentha ×piperitae0
Treatment
N fertilizatione0
Outcome
Herbage and oil yieldse0
Direction
increasede0
Value
100 kg N/hae0

Not reportedComparator

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

Mentha x piperita
Mentha ×piperita · TaxonOwn work · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Herbage and oil yields of Mentha arvensis (Japanese mint), M. piperita (peppermint) and M. spicata (spearmint) increased significantly with N fertilization up to 100 kg N/ha and those of M. citrata (bergamot mint) with up to 150 kg N/ha.”

✓ located verbatim in the source · abstract, characters 8–245 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Herbage and oil yields of M. spicata increased significantly with N fertilization up to 100 kg N/ha.

Taxon
M. spicataMentha spicatae0
Treatment
N fertilizatione0
Outcome
Herbage and oil yieldse0
Direction
increasede0
Value
100 kg N/hae0

Not reportedComparator

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

Mentha spicata
Mentha spicata · TaxonSimon Eugster -- Simon 13:07, 2 July 2006 (UTC) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Herbage and oil yields of Mentha arvensis (Japanese mint), M. piperita (peppermint) and M. spicata (spearmint) increased significantly with N fertilization up to 100 kg N/ha and those of M. citrata (bergamot mint) with up to 150 kg N/ha.”

✓ located verbatim in the source · abstract, characters 8–245 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Herbage and oil yields of M. citrata increased significantly with N fertilization up to 150 kg N/ha.

Treatment
N fertilizatione0
Outcome
Herbage and oil yieldse0
Direction
increasede0
Value
150 kg N/hae0

Not reportedComparator

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

Mentha aquatica var. citrata
Mentha aquatica var. citrata · Taxon · picture of the speciesKristian Peters -- Fabelfroh 09:40, 12 March 2007 (UTC) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Herbage and oil yields of Mentha arvensis (Japanese mint), M. piperita (peppermint) and M. spicata (spearmint) increased significantly with N fertilization up to 100 kg N/ha and those of M. citrata (bergamot mint) with up to 150 kg N/ha.”

✓ located verbatim in the source · abstract, characters 8–245 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Plant height increased with nitrogen application in the mint species.

Taxon
mint speciest0
Treatment
N applicatione0
Outcome
Plant heighte0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“Plant height, leaf: stem ratio and leaf area index increased with N application; and oil content decreased in all the species.”

✓ located verbatim in the source · abstract, characters 246–372 · show in text ↑
t0

“mint species”

✓ located verbatim in the source · title, characters 12–24 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

leaf: stem ratio increased with nitrogen application in the mint species.

Taxon
mint speciest0
Treatment
N applicatione0
Outcome
leaf: stem ratioe0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“Plant height, leaf: stem ratio and leaf area index increased with N application; and oil content decreased in all the species.”

✓ located verbatim in the source · abstract, characters 246–372 · show in text ↑
t0

“mint species”

✓ located verbatim in the source · title, characters 12–24 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

leaf area index increased with nitrogen application in the mint species.

Taxon
mint speciest0
Treatment
N applicatione0
Outcome
leaf area indexe0
Direction
increasede0

Not reportedComparator

Verbatim

e0

“Plant height, leaf: stem ratio and leaf area index increased with N application; and oil content decreased in all the species.”

✓ located verbatim in the source · abstract, characters 246–372 · show in text ↑
t0

“mint species”

✓ located verbatim in the source · title, characters 12–24 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

oil content decreased with nitrogen application in the mint species.

Taxon
mint speciest0
Treatment
N applicatione0
Outcome
oil contente0
Direction
decreasede0

Not reportedComparator

Verbatim

e0

“Plant height, leaf: stem ratio and leaf area index increased with N application; and oil content decreased in all the species.”

✓ located verbatim in the source · abstract, characters 246–372 · show in text ↑
t0

“mint species”

✓ located verbatim in the source · title, characters 12–24 · show in text ↑
Observationobservedoriginal resultsimulated

Claim · model-written summary

The estimated economic optimum nitrogen dose for M. arvensis was 167 kg N/ha.

Taxon
M. arvensisMentha arvensise0
Outcome
Economic optimum doses of Ne0
Value
167e0

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

Mentha arvensis
Mentha arvensis · TaxonMichael Becker · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Economic optimum doses of N for M. arvensis, M. piperita and M. spicata were 167, 153 and 145 kg N/ha, respectively and their oil yields expected from the response equation were 190, 103 and 50 kg/ha, respectively.”

✓ located verbatim in the source · abstract, characters 373–587 · show in text ↑
Observationobservedoriginal resultsimulated

Claim · model-written summary

The response equation predicted M. arvensis oil yield of 190 kg/ha at the economic optimum.

Taxon
M. arvensisMentha arvensise0
Outcome
oil yields expected from the response equatione0
Value
190e0

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

Mentha arvensis
Mentha arvensis · TaxonMichael Becker · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Economic optimum doses of N for M. arvensis, M. piperita and M. spicata were 167, 153 and 145 kg N/ha, respectively and their oil yields expected from the response equation were 190, 103 and 50 kg/ha, respectively.”

✓ located verbatim in the source · abstract, characters 373–587 · show in text ↑
Observationobservedoriginal resultsimulated

Claim · model-written summary

The estimated economic optimum nitrogen dose for M. piperita was 153 kg N/ha.

Taxon
M. piperitaMentha ×piperitae0
Outcome
Economic optimum doses of Ne0
Value
153e0

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

Mentha x piperita
Mentha ×piperita · TaxonOwn work · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Economic optimum doses of N for M. arvensis, M. piperita and M. spicata were 167, 153 and 145 kg N/ha, respectively and their oil yields expected from the response equation were 190, 103 and 50 kg/ha, respectively.”

✓ located verbatim in the source · abstract, characters 373–587 · show in text ↑
Observationobservedoriginal resultsimulated

Claim · model-written summary

The response equation predicted M. piperita oil yield of 103 kg/ha at the economic optimum.

Taxon
M. piperitaMentha ×piperitae0
Outcome
oil yields expected from the response equatione0
Value
103e0

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

Mentha x piperita
Mentha ×piperita · TaxonOwn work · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Economic optimum doses of N for M. arvensis, M. piperita and M. spicata were 167, 153 and 145 kg N/ha, respectively and their oil yields expected from the response equation were 190, 103 and 50 kg/ha, respectively.”

✓ located verbatim in the source · abstract, characters 373–587 · show in text ↑
Observationobservedoriginal resultsimulated

Claim · model-written summary

The estimated economic optimum nitrogen dose for M. spicata was 145 kg N/ha.

Taxon
M. spicataMentha spicatae0
Outcome
Economic optimum doses of Ne0
Value
145e0

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

Mentha spicata
Mentha spicata · TaxonSimon Eugster -- Simon 13:07, 2 July 2006 (UTC) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Economic optimum doses of N for M. arvensis, M. piperita and M. spicata were 167, 153 and 145 kg N/ha, respectively and their oil yields expected from the response equation were 190, 103 and 50 kg/ha, respectively.”

✓ located verbatim in the source · abstract, characters 373–587 · show in text ↑
Observationobservedoriginal resultsimulated

Claim · model-written summary

The response equation predicted M. spicata oil yield of 50 kg/ha at the economic optimum.

Taxon
M. spicataMentha spicatae0
Outcome
oil yields expected from the response equatione0
Value
50e0

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

Mentha spicata
Mentha spicata · TaxonSimon Eugster -- Simon 13:07, 2 July 2006 (UTC) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Economic optimum doses of N for M. arvensis, M. piperita and M. spicata were 167, 153 and 145 kg N/ha, respectively and their oil yields expected from the response equation were 190, 103 and 50 kg/ha, respectively.”

✓ located verbatim in the source · abstract, characters 373–587 · show in text ↑
Observationobservedoriginal resultsimulated

Claim · model-written summary

The calculated optimum fertilizer rate for M. citrata was 225 kg N/ha.

Outcome
optimum fertilizer ratee0
Value
225 kg N/hae0

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

Mentha aquatica var. citrata
Mentha aquatica var. citrata · Taxon · picture of the speciesKristian Peters -- Fabelfroh 09:40, 12 March 2007 (UTC) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The calculated optimum fertilizer rate for M. citrata was 225 kg N/ha, giving a yield of 193 kg oil/ha.”

✓ located verbatim in the source · abstract, characters 588–691 · show in text ↑
Observationobservedoriginal resultsimulated

Claim · model-written summary

The calculated M. citrata oil yield at that rate was 193 kg oil/ha.

Outcome
yielde0
Value
193 kg oil/hae0

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

Mentha aquatica var. citrata
Mentha aquatica var. citrata · Taxon · picture of the speciesKristian Peters -- Fabelfroh 09:40, 12 March 2007 (UTC) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The calculated optimum fertilizer rate for M. citrata was 225 kg N/ha, giving a yield of 193 kg oil/ha.”

✓ located verbatim in the source · abstract, characters 588–691 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Oil quality did not vary appreciably with nitrogen fertilization.

Taxon
mint speciest0
Treatment
N fertilizatione0
Outcome
Oil qualitye0
Direction
did not vary appreciablye0

Not reportedComparator

Verbatim

e0

“Oil quality did not vary appreciably with N fertilization.”

✓ located verbatim in the source · abstract, characters 692–750 · show in text ↑
t0

“mint species”

✓ located verbatim in the source · title, characters 12–24 · show in text ↑

fertilization · yield · Mentha spicata (spearmint)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

3 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

fertilization · yield · Mentha arvensis (wild mint)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

5 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

fertilization · yield · Mentha x piperita (peppermint)Positive and negative results

16 papers: 15 positive, 1 negative or no effect

14 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. no effect
  3. positive

12 papers more in this group

See all 16 papers →

fertilization · yield · Mentha aquatica (water mint)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 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.