Abstract
Patchouli (Pogostemon cablin Benth.) is a bushy herb native to the tropical region of Asia, and now cultivated for its essential oil usually used in perfume manufacturing. It also widely used throughout the world as treating skin conditions, relieving depression, controlling appetite, and antifungal agents. It also cultivated commercially in Tawau, Sabah for exporting purposes with average oil production up to 26-29 mt per acre in 2016. As they enter the second and third harvesting cycle, the yield started to decline and reach 2.6 mt of oil per acre. This drop-in yield is thought to be either due to soil variabilities, low nutrient levels in volcanic soil, and also diseases. Soil nutrient analysis and leaf coloration patterns are studied before conducting the study. Seaweed extract, banana peel, the mixture of Seaweed extract and banana peel, and pre-formulated 12-12-12 (N-P-K) organic fertilizer (PFF) fertilizer treatments were engaged in the Patchouli plot field experiment. Besides, the agronomical practice for the cultivation of Patchouli is well studied or documented. The pre-study showed that the study plot has a very low conductivity level, a very low level of organic Carbon and low Cation Exchange Capacity (CEC) level. Meanwhile, there were no diseases or nematode occurrences in the area. Plant height, soil pH, and soil conductivity were studied with all the four treatments that have shown a positive significant impact compared with standard estate practice. The treatments using seaweed and seaweed mixture had the highest significant level for soil conductivity with the conductivity improve from 43 to 480 micro Siemens (μS/cm) but it reduces the soil pH. Whereas, plant height data analysis showed that the seaweed mixture was significantly different compared with other treatments at a 0.05 level. Hence, we recommend the Patchouli plantation to use organic fertilizers especially seaweed-based since it is cheap and easily available in Sabah.
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Claims 7
Claim · model-written summary
A pre-study showed that the patchouli study plot had very low conductivity, very low organic carbon and low cation exchange capacity.
- Taxon
- Patchouli
Pogostemon cablint0 - Outcome
- very low conductivity level, a very low level of organic Carbon and low Cation Exchange Capacitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Patchouli”
e0“The pre-study showed that the study plot has a very low conductivity level, a very low level of organic Carbon and low Cation Exchange Capacity (CEC) level”
Claim · model-written summary
No diseases or nematode occurrences were found in the patchouli study area.
- Taxon
- PatchouliPogostemon cablint0
- Outcome
- no diseases or nematode occurrencese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Patchouli”
e0“there were no diseases or nematode occurrences in the area”
Claim · model-written summary
All four fertilizer treatments had a positive significant impact on plant height, soil pH and soil conductivity compared with standard estate practice.
- Taxon
- PatchouliPogostemon cablint0
- Treatment
- all the four treatmentse0
- Outcome
- Plant height, soil pH, and soil conductivitye0
- Comparator
- standard estate practicee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Patchouli”
e0“Plant height, soil pH, and soil conductivity were studied with all the four treatments that have shown a positive significant impact compared with standard estate practice”
Claim · model-written summary
Seaweed and seaweed mixture treatments gave the highest significant soil conductivity, improved from 43 to 480 microSiemens/cm.
- Taxon
- PatchouliPogostemon cablint0
- Treatment
- seaweed and seaweed mixturee0
- Outcome
- soil conductivitye0
- Direction
- improvee0
- Value
- 43 to 480 micro Siemens (μS/cm)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Patchouli”
e0“The treatments using seaweed and seaweed mixture had the highest significant level for soil conductivity with the conductivity improve from 43 to 480 micro Siemens (μS/cm)”
Claim · model-written summary
The seaweed and seaweed mixture treatments reduced soil pH.
- Taxon
- PatchouliPogostemon cablint0
- Treatment
- seaweed and seaweed mixturee0
- Outcome
- soil pHe0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Patchouli”
e0“The treatments using seaweed and seaweed mixture had the highest significant level for soil conductivity with the conductivity improve from 43 to 480 micro Siemens (μS/cm) but it reduces the soil pH”
Claim · model-written summary
Plant height under the seaweed mixture treatment was significantly different from the other treatments at the 0.05 level.
- Taxon
- PatchouliPogostemon cablint0
- Treatment
- seaweed mixturee0
- Outcome
- plant heighte0
- Comparator
- other treatmentse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Patchouli”
e0“plant height data analysis showed that the seaweed mixture was significantly different compared with other treatments at a 0.05 level”
Claim · model-written summary
The authors recommend that patchouli plantations use organic fertilizers, especially seaweed-based ones.
- Taxon
- PatchouliPogostemon cabline0
- Outcome
- use organic fertilizers especially seaweed-basede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we recommend the Patchouli plantation to use organic fertilizers especially seaweed-based”
The same questions in other papers
other · growth · Pogostemon cablin (patchouli)Results agree
1 paper in the same direction as this paper
- positive
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.