Abstract
ABSTRACT Yield potential of Italian parsley (Petroselinum crispum), Russian tarragon (Artemisia dracunculus), sweet marjoram (Origanum majorana), and thyme (Thymus vulgaris) was evaluated in multiple harvests from 1993 to 1995. The herbs were grown using a full-bed polyethylene mulch-seepage irrigation system with three nitrogen and potassium rates. In the 1993–94 growth season, plant survival of sweet marjoram and thyme, but not Italian parsley and Russian tarragon, was adversely affected by an increase in soil soluble salt concentrations as the season progressed. Fresh weight yields of sweet marjoram and Italian parsley in the first two harvests of the 1993–94 growth season were maximized at 49 or 98 kg nitrogen/ha and 40 or 80 kg potassium/ha. Maximum Russian tarragon fresh weight yield occurred at 147 kg nitrogen/ha and 120 kg potassium/ha (P < 0.05). Yields of thyme were similar in all harvests at the three nitrogen and potassium rates tested. In the 1994–95 growth season, early fresh weight yields of sweet marjoram, Italian parsley, and thyme were best with the 98 kg nitrogen/ha and 80 kg potassium/ha levels and Russian tarragon fresh weight yields were best at nitrogen and potassium levels similar to the first test year. Nitrogen and potassium rates had little to no effect on macroelement concentrations in herb shoots.
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Claims 13
Claim · model-written summary
Increasing soil soluble salts adversely affected sweet marjoram survival in 1993–94.
- Taxon
- sweet marjoram
Origanum majoranae0 - Compound
- soil soluble salte0
- Outcome
- plant survivale0
- Direction
- adversely affectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the 1993–94 growth season, plant survival of sweet marjoram and thyme, but not Italian parsley and Russian tarragon, was adversely affected by an increase in soil soluble salt concentrations as the season progressed.”
Claim · model-written summary
Increasing soil soluble salts adversely affected thyme survival in 1993–94.
- Taxon
- thyme
.JPG?width=60)
Thymus vulgarise0 - Compound
- soil soluble salte0
- Outcome
- plant survivale0
- Direction
- adversely affectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“In the 1993–94 growth season, plant survival of sweet marjoram and thyme, but not Italian parsley and Russian tarragon, was adversely affected by an increase in soil soluble salt concentrations as the season progressed.”
Claim · model-written summary
Increasing soil soluble salts did not adversely affect Italian parsley survival in 1993–94.
- Taxon
- Italian parsleyPetroselinum crispum Neapolitanum Groupe0
- Compound
- soil soluble salte0
- Outcome
- plant survivale0
- Direction
- note0
Verbatim
e0“In the 1993–94 growth season, plant survival of sweet marjoram and thyme, but not Italian parsley and Russian tarragon, was adversely affected by an increase in soil soluble salt concentrations as the season progressed.”
Claim · model-written summary
Increasing soil soluble salts did not adversely affect Russian tarragon survival in 1993–94.
Verbatim
e0“In the 1993–94 growth season, plant survival of sweet marjoram and thyme, but not Italian parsley and Russian tarragon, was adversely affected by an increase in soil soluble salt concentrations as the season progressed.”
Claim · model-written summary
Sweet marjoram fresh weight yield in the first two 1993–94 harvests was maximized at the lower stated nitrogen and potassium rates.
- Taxon
- sweet marjoramOriganum majoranae0
- Treatment
- 49 or 98 kg nitrogen/ha and 40 or 80 kg potassium/hae0
- Outcome
- Fresh weight yieldse0
- Direction
- maximizede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fresh weight yields of sweet marjoram and Italian parsley in the first two harvests of the 1993–94 growth season were maximized at 49 or 98 kg nitrogen/ha and 40 or 80 kg potassium/ha.”
Claim · model-written summary
Italian parsley fresh weight yield in the first two 1993–94 harvests was maximized at the lower stated nitrogen and potassium rates.
- Taxon
- Italian parsleyPetroselinum crispum Neapolitanum Groupe0
- Treatment
- 49 or 98 kg nitrogen/ha and 40 or 80 kg potassium/hae0
- Outcome
- Fresh weight yieldse0
- Direction
- maximizede0
Verbatim
e0“Fresh weight yields of sweet marjoram and Italian parsley in the first two harvests of the 1993–94 growth season were maximized at 49 or 98 kg nitrogen/ha and 40 or 80 kg potassium/ha.”
Claim · model-written summary
Russian tarragon fresh weight yield was highest at 147 kg nitrogen/ha and 120 kg potassium/ha.
Verbatim
e0“Maximum Russian tarragon fresh weight yield occurred at 147 kg nitrogen/ha and 120 kg potassium/ha (P < 0.05).”
Claim · model-written summary
Thyme yields were similar across all harvests at the three nitrogen and potassium rates.
- Taxon
- thymeThymus vulgarise0
- Treatment
- three nitrogen and potassium ratese0
- Outcome
- Yieldse0
- Direction
- similare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yields of thyme were similar in all harvests at the three nitrogen and potassium rates tested.”
Claim · model-written summary
Early sweet marjoram fresh weight yield in 1994–95 was best at 98 kg nitrogen/ha and 80 kg potassium/ha.
- Taxon
- sweet marjoramOriganum majoranae0
- Treatment
- 98 kg nitrogen/ha and 80 kg potassium/hae0
- Outcome
- early fresh weight yieldse0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the 1994–95 growth season, early fresh weight yields of sweet marjoram, Italian parsley, and thyme were best with the 98 kg nitrogen/ha and 80 kg potassium/ha levels”
Claim · model-written summary
Early Italian parsley fresh weight yield in 1994–95 was best at 98 kg nitrogen/ha and 80 kg potassium/ha.
- Taxon
- Italian parsleyPetroselinum crispum Neapolitanum Groupe0
- Treatment
- 98 kg nitrogen/ha and 80 kg potassium/hae0
- Outcome
- early fresh weight yieldse0
- Direction
- beste0
Verbatim
e0“In the 1994–95 growth season, early fresh weight yields of sweet marjoram, Italian parsley, and thyme were best with the 98 kg nitrogen/ha and 80 kg potassium/ha levels”
Claim · model-written summary
Early thyme fresh weight yield in 1994–95 was best at 98 kg nitrogen/ha and 80 kg potassium/ha.
- Taxon
- thymeThymus vulgarise0
- Treatment
- 98 kg nitrogen/ha and 80 kg potassium/hae0
- Outcome
- early fresh weight yieldse0
- Direction
- beste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the 1994–95 growth season, early fresh weight yields of sweet marjoram, Italian parsley, and thyme were best with the 98 kg nitrogen/ha and 80 kg potassium/ha levels”
Claim · model-written summary
Russian tarragon fresh weight yield in 1994–95 was best at nitrogen and potassium levels similar to the first year.
Verbatim
e0“Russian tarragon fresh weight yields were best at nitrogen and potassium levels similar to the first test year.”
Claim · model-written summary
Nitrogen and potassium rates had little to no effect on macroelement concentrations in herb shoots.
- Taxon
- herbe0
- Organ / stage
- shootse0
- Treatment
- Nitrogen and potassium ratese0
- Outcome
- macroelement concentrationse0
- Direction
- little to no effecte0
Not reportedComparator
Verbatim
e0“Nitrogen and potassium rates had little to no effect on macroelement concentrations in herb shoots.”
The same questions in other papers
potassium · yield · Thymus vulgaris (thyme)Positive and negative results
1 in the opposite direction
- positive
nitrogen · yield · Thymus vulgaris (thyme)Positive and negative results
2 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
4 papers more in this group
See all 8 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.