PENGARUH PENAMBAHAN FUNGI MIKORIZA ARBUSKULAR DAN BERBAGAI JENIS ARANG PADA MEDIA TUMBUH TANAH BEKAS TAMBANG EMAS TERHADAP PERTUMBUHAN SEMAI GAHARU (Aquilaria malaccensis Lamk.)

Abstract

Aquilaria malaccensis Lamk. is one type of forest plant with high economic value. Ex-gold mines are
marginal soils whose physical and biological properties are no longer fertile. One alternative solution
to overcome this problem is to add Arbuscular Mycorrhizal Fungi (AMF) and charcoal to the growing
media. This study used a completely randomized design (CRD) method with a factorial pattern. The
first factor (M) is the provision of AMF consisting of two levels and the second factor (A) is the type of
charcoal consisting of four levels, so that there are 8 treatment combinations, namely M0A0 = Soil
without AMF and charcoal (Control), M0A1 = Soil + rice husk charcoal, M0A2= Soil + Acacia wood
charcoal, M0A3 = Soil + Coconut shell charcoal, M1A0 = Soil + FMA, M1A1= Soil + FMA + Rice
husk charcoal, M1A2 = Soil + FMA + Acacia wood charcoal, M1A3 = Soil + FMA + Charcoal
coconut shell. Each treatment combination was repeated 5 times so that 40 agarwood seedlings were
needed. Analysis of variance was used to determine whether the treatment had a significant effect on
the observation parameters, if it had a significant effect, a further test of Honest Significant Difference
(BNJ) was carried out. The results showed that the application of AMF and various types of charcoal
had a significant effect on the increase in height, number of leaves, and diameter of agarwood
seedlings, but did not significantly affect the value of stem sturdiness. The combination of M1A1
treatments gave a better effect in increasing the growth of agarwood seedlings in polybags, where the
average value of the increase in seedling height was 2.68 cm, diameter was 0.46 mm, number of
leaves was 4.60 and the value of stem firmness was 4.49