Effect of cow dung manure and SP-36 fertilizer on the quality of patchouli oil (Pogostemon cablin Benth.) planted on Ultisol

The medical function of patchouli oil as an anti-virus allows it to be developed into a drug for COVID-19. The management of marginal soil namely Ultisol for patchouli development is very important because of its vast potential in Aceh. Therefore, the purpose of this study is to find out the effect of cow dung manure and SP-36 fertilizer on the quality of patchouli oil (Pogostemon cablin Benth.) on Ultisol. This study used factorial randomized block design with 3 replications. The first treatment factor was the dose of cow dung manure (control, 10 tonnes ha-1 , 20 tonnes ha-1 , 30 tonnes ha-1 ). The second treatment factor was the dose of SP-36 fertilizer (control, 100 kg ha-1 , 200 kg ha-1 , 300 kg ha-1 ). The results showed that the treatment had no significant effect on patchouli oil yield. The highest Patchouli Alcohol obtained was 27.74% on the combination of 30 tonnes ha-1 cow dung manure and 300 kg ha-1 SP-36 fertilizer.