Media Kompos Serbuk Gergaji Kayu Sengon dan Pupuk Lepas Lambat untuk Meningkatkan Pertumbuhan Semai Pinus merkusii di KPH Banyumas Timur
Abstract: Physical and
chemical properties of the potting media, especially porosity and nutrient
availability, are required to produce good quality seedlings of pine (Pinus
merkusii Jungh et de Vries). Composted sawdust of sengon (Paraserianthes
falcataria) wood is a potential material to be used for growing media of pine
seedlings. However, since this material contains low nutrients, addition of a
slow release fertilizer is required to meet the nutrient demand of seedling
growth. The objective of this research was to determine the effects of wood
sawdust compost and slow release fertilizer on the growth of pine seedlings.
The experiment was arranged in a completely randomized design with two factors
and four replications. The first factor was the rate of sawdust compost and the
second factor was the rate of slow release fertilizer. Height and root-collar
diameter were measured at 6 months of age. As the results, sawdust compost and
slow release fertilizer gave a significant effect on height and diameter
growths. However, the effect of sawdust compost on seedling growth depended on
the rate of fertilizer. Combination treatment that gave the best seedlings
growth was 100% sawdust compost + 0% soil (and 12 g fertilizer /1.5 liter
media). The seedlings applied with this treatment had the mean height of 8.72
cm and diameter of 2.24 mm, which were significantly greater than the control
with the mean height and mean diameter of 1.87 cm and 1.15 mm respectively.
Keywords: sawdust compost,
slow release fertilizer, Pinus merkusii, seedling growth
Penulis: Suryo Hardiwinoto,
Nur Adin Eko Saputro, Handojo Hadi Nurjanto, Widiyatno
Kode Jurnal: jpkehutanandd100011
