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
Claim · model-written summary
Herbage and oil yields of Mentha arvensis increased significantly with N fertilization up to 100 kg N/ha.
- Taxon
- Mentha arvensis
Mentha 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.

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.”
Claim · model-written summary
Herbage and oil yields of M. piperita increased significantly with N fertilization up to 100 kg N/ha.
- Taxon
- M. piperita
Mentha ×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.

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.”
Claim · model-written summary
Herbage and oil yields of M. spicata increased significantly with N fertilization up to 100 kg N/ha.
- Taxon
- M. spicata
Mentha 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.

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.”
Claim · model-written summary
Herbage and oil yields of M. citrata increased significantly with N fertilization up to 150 kg N/ha.
- Taxon
- M. citrata
Mentha aquatica var. citratae0 - 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.

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.”
Claim · model-written summary
Plant height increased with nitrogen application in the mint species.
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.”
t0“mint species”
Claim · model-written summary
leaf: stem ratio increased with nitrogen application in the mint species.
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.”
t0“mint species”
Claim · model-written summary
leaf area index increased with nitrogen application in the mint species.
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.”
t0“mint species”
Claim · model-written summary
oil content decreased with nitrogen application in the mint species.
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.”
t0“mint species”
Claim · model-written summary
The estimated economic optimum nitrogen dose for M. arvensis was 167 kg N/ha.
- Taxon
- M. arvensis
Mentha arvensise0 - Outcome
- Economic optimum doses of Ne0
- Value
- 167e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

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.”
Claim · model-written summary
The response equation predicted M. arvensis oil yield of 190 kg/ha at the economic optimum.
- Taxon
- M. arvensis
Mentha arvensise0 - Outcome
- oil yields expected from the response equatione0
- Value
- 190e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

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.”
Claim · model-written summary
The estimated economic optimum nitrogen dose for M. piperita was 153 kg N/ha.
- Taxon
- M. piperita
Mentha ×piperitae0 - Outcome
- Economic optimum doses of Ne0
- Value
- 153e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

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.”
Claim · model-written summary
The response equation predicted M. piperita oil yield of 103 kg/ha at the economic optimum.
- Taxon
- M. piperita
Mentha ×piperitae0 - Outcome
- oil yields expected from the response equatione0
- Value
- 103e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

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.”
Claim · model-written summary
The estimated economic optimum nitrogen dose for M. spicata was 145 kg N/ha.
- Taxon
- M. spicata
Mentha spicatae0 - Outcome
- Economic optimum doses of Ne0
- Value
- 145e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

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.”
Claim · model-written summary
The response equation predicted M. spicata oil yield of 50 kg/ha at the economic optimum.
- Taxon
- M. spicata
Mentha spicatae0 - Outcome
- oil yields expected from the response equatione0
- Value
- 50e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

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.”
Claim · model-written summary
The calculated optimum fertilizer rate for M. citrata was 225 kg N/ha.
- Taxon
- M. citrata
Mentha aquatica var. citratae0 - Outcome
- optimum fertilizer ratee0
- Value
- 225 kg N/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The calculated optimum fertilizer rate for M. citrata was 225 kg N/ha, giving a yield of 193 kg oil/ha.”
Claim · model-written summary
The calculated M. citrata oil yield at that rate was 193 kg oil/ha.
- Taxon
- M. citrata
Mentha aquatica var. citratae0 - Outcome
- yielde0
- Value
- 193 kg oil/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The calculated optimum fertilizer rate for M. citrata was 225 kg N/ha, giving a yield of 193 kg oil/ha.”
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.”
t0“mint species”
The same questions in other papers
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See all 16 papers →fertilization · yield · Mentha aquatica (water mint)Results agree
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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.