Growth and Yield of Patchouli (Pogostemon Cablin Benth) in Combination of Soil Améliorant and Fertilizer SP-36

Abstract

Patchouli cultivation requires a fairly high nutrient intake and requires intensive cultivation actions. Land that is still widely available for cultivation of plantation crops is marginal land, so that in patchouli cultivation it is necessary to have input in improving soil fertility. The aim of the study was to determine the effect of soil enhancer, P fertilizer (SP-36) and the interaction between soil enhancer and P fertilizer (SP-36) on the growth and yield of patchouli. The study used a completely randomized block design with a factorial pattern with two factors. First treatment of soil améliorant (100% soil); 25% soil improvement materials and 75% soil; 50% soil améliorant and 50% soil). The second factor was SP-36 fertilizer (without SP-36 fertilizer; 1.8 g SP-36; 3.6 g SP-36, and 5.4 g SP-36 per plant). Each treatment combination was repeated three times. The variables observed were plant height, shoot dry weight, root dry weight, ratio of shoot and root dry weight, and patchouli yield. The results showed that the application of soil amendments at a dose of 25% and 50% in the planting medium gave better results on plant height, crown dry weight, and root dry weight, as well as the ratio of shoot and root dry weight. The application of SP-36 fertilizer and interactions at various doses did not have an effect on plant height, shoot dry weight, and root dry weight. The highest patchouli yield was found in the combination treatment of 25% soil améliorant and 5.4 g SP-36 on planting media with a yield of 4.2%.