The influence of using multiple types of planting media and liquid organic fertilizer dosage on the growth of vanilla seedling (Vanilla Planifolia Andrews)

Seedling is one of the determining factors of success in the effort of developing and cultivating vanilla plant in Timor-Leste. The growth level and reproduction success of vanilla plants at the nursery, become an important factor in generating and providing seeds. Vanilla Plant (Vanilla plan folia Andrews) is an excellent plant that is often called “green gold” because the price is quite high in the market. Generally, it can be propagated vegetatively. The objective of this research is to find out the influence of planting media types and right doses of liquid organic fertilizer, and also to find out the interaction of planting media types and dose of liquid organic fertilizer on the growth of vanilla seedling. The Method used in this research is randomized group design using two factors. The first factor is using several types of planting media as many as 5 levels, namely: MO = soil (control). M1 = Soil + Rice husk (2: 1), M2 = Soil + Rice husk + Cow manure (2: 1: 2), M3 = Soil + Rice husk + Coffee skin waste (2: 1: 2). M4 = Soil + Cow manure + Coffee skin waste + Rice husk (2: 1: 1: 1). While the second factor is the application of liquid organic fertilizer dosage with the brand of D.I. Grow Green as many as 4 levels, namely: P0 = 0 ml, P1 = 5 ml, P2 = 10 ml, P3 = 15 ml. There are 9 combinations of treatments and each treatments has to be repeated three times using different types of soil, so the combination of 5x4 = 20x3 = 60 sample is obtained. The measurement variables consist of height of seedling, number of leaves, segment diameter, number of segments, number of roots, length of root and total fresh weight. The result shows that the composition of planting media such as rice husk : coffee skin waste (2:1:2), which are combined with the application of liquid organic fertilizer dosage (D.I. Grow Green) 15 ml/liter water (concentration 250 mg/plant), generally produced highest growth of vanilla seedling with the average of parameter observation height is 44,00 cm, average number of leave is 9,67 leaflets, average diameter of segment is 5,82 mm, number of segments is 9,33, when compared to other treatment combinations. Application of 15 ml / liter of liquid organic fertilizer dosage with a concentration of 250 mg/plant which is sprayed once a week, generally produce highest growth of vanilla seedling, except for the parameter of root number, length of root and total fresh weight. Soil type in Comoro is the most suitable soil for vanilla nursery process compared to soil type in Leimea and Laulara.