Abstract
Abstract Essential oil of rosemary (Rosmarinus officinalis L.) possesses good olfactory properties and is suitable for use in perfumes, soaps, and fragrances. Field experiments were conducted for 2 years (2003−2005) in an area experiencing a semi-arid tropical climate to study the influence of vermicompost and chemical fertilizer on growth, herb, oil yield, nutrient uptake, soil fertility, and oil quality of rosemary. Results from the experiment revealed that among the seven treatments, the application of vermicompost (8 t ha−1) + fertilizer nitrogen (N)−phosphorus (P)− potassium (K) (150:25:25 kg ha−1) produced optimum herbage and oil yield of rosemary compared with control (no fertilizer) and was found to be on par with application of fertilizer NPK 300:50:50 kg ha−1. Content and quality of oil were not influenced by vermicompost and chemical fertilizers. Furthermore, it was noticed that available N and P were greater in postharvest soils that received vermicompost alone or in combination with inorganic fertilizers than control (no fertilizer) and inorganic fertilizer−treated soil. This study indicates that combined application of vermicompost and chemical fertilizer helps to increase crop productivity and sustain the soil fertility. Keywords: Chemical fertilizerherbrosemarysoil fertilityvermicompost Acknowledgments The authors are grateful to the director, CIMAP, Lucknow, and the scientist-in-charge of the center for use of the facilities and their encouragement, and to S. Ramesh for GC analysis of the oil samples.
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Claims 5
Claim · model-written summary
Combined vermicompost and fertilizer produced optimum rosemary herbage and oil yield relative to no fertilizer.
- Taxon
- rosemary
Salvia rosmarinuse0 - Treatment
- vermicompost (8 t ha−1) + fertilizer nitrogen (N)−phosphorus (P)− potassium (K) (150:25:25 kg ha−1)e0
- Outcome
- herbage and oil yielde0
- Direction
- optimume0
- Comparator
- control (no fertilizer)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of vermicompost (8 t ha−1) + fertilizer nitrogen (N)−phosphorus (P)− potassium (K) (150:25:25 kg ha−1) produced optimum herbage and oil yield of rosemary compared with control (no fertilizer)”
Claim · model-written summary
Combined vermicompost and fertilizer yielded comparably to the higher NPK dose.
- Taxon
- rosemarySalvia rosmarinuse1
- Outcome
- oil yielde1
- Direction
- on pare0
- Comparator
- fertilizer NPK 300:50:50 kg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“was found to be on par with application of fertilizer NPK 300:50:50 kg ha−1”
e1“oil yield of rosemary”
Claim · model-written summary
Vermicompost and chemical fertilizers did not influence rosemary oil content or quality.
- Taxon
- rosemarySalvia rosmarinuse1
- Treatment
- vermicompost and chemical fertilizerse0
- Outcome
- Content and quality of oile0
- Direction
- not influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Content and quality of oil were not influenced by vermicompost and chemical fertilizers.”
e1“rosemary (Rosmarinus officinalis L.)”
Claim · model-written summary
Vermicompost alone raised postharvest soil available nitrogen and phosphorus relative to control and inorganic fertilizer.
- Taxon
- rosemarySalvia rosmarinuse1
- Treatment
- vermicompost alonee0
- Outcome
- available N and Pe0
- Direction
- greatere0
- Comparator
- control (no fertilizer) and inorganic fertilizer−treated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“available N and P were greater in postharvest soils that received vermicompost alone or in combination with inorganic fertilizers than control (no fertilizer) and inorganic fertilizer−treated soil”
e1“oil quality of rosemary”
Claim · model-written summary
Vermicompost combined with inorganic fertilizer raised postharvest soil available nitrogen and phosphorus.
- Taxon
- rosemarySalvia rosmarinuse1
- Treatment
- vermicompost alone or in combination with inorganic fertilizerse0
- Outcome
- available N and Pe0
- Direction
- greatere0
- Comparator
- control (no fertilizer) and inorganic fertilizer−treated soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“available N and P were greater in postharvest soils that received vermicompost alone or in combination with inorganic fertilizers than control (no fertilizer) and inorganic fertilizer−treated soil”
e1“oil quality of rosemary”
The same questions in other papers
nitrogen · quality: oil · Salvia rosmarinus (rosemary)Results differ
2 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- positive
- no effect
1 paper more in this group
See all 5 papers →potassium · quality: oil · Salvia rosmarinus (rosemary)Positive and negative results
1 in the opposite direction
- no effect
fertilization · quality: general · Salvia rosmarinus (rosemary)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- no effect
fertilization · quality: oil · Salvia rosmarinus (rosemary)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.