Effect of vermicompost and biostarter on the growth and photosynthetic rate of Echinacea purpurea

Abstract. Choirunnisa LF, Solichatun, Yunus A. 2022. Effect of vermicompost and biostarter on the growth photosynthetic rate Echinacea purpurea. Asian J Agric 6: 35-39. purpurea (L.) Moench or purple coneflower is a medicinal plant that originated from North America began to cultivate in Indonesia. A proper method needed for improving its development adjust tropical area like This study aimed determine effect E. Split-Plot Randomized Complete Block Design was used. Two factors this were organic materials such as biostarter. Both them can be way increase The dosages 0, 40, 60, 80 g/plant different types banana peel waste EM. Observed data included height width, leaf numbers, area, transpiration rate, also stomata conductance. results showed treatment EM highest resulted (73,6 cm), numbers (82), stomatal conductance (0,4585 mol m-2s-1). Leaf (87,21 cm2) (0,6839 µmol m-2s-1) result with waste. 60 best width (50,25 cm) (0,2390 mmol concluded significant between