Rubber plant (Hevea brasiliensis (Willd. ex A. Juss) Mull. Arg.) is one of commercial commodities in Riau Province that distributed at several plantation centers such as Bengkalis Regency, Kampar, Kuantan Singingi, ...

The Mackintosh Probe is a lightweight dynamic penetrometer and a considerably faster and cheaper than boring tool, particularly when the depth of exploration is moderate and the soils being investigated are soft. Popularity ...