Upaya Peningkatan Produktivitas Getah Pinus (Pinus Merkusii) Menggunakan Stim…

ABSTRACT Alternative use of stimulants from natural ingredients that are safe, relatively inexpensive, and easy to obtain, such as galangal (Alpinia galanga) and ginger (Zingiber officinale). This research was conducted to determine the effect of stimulant administration of galangal and ginger extracts on increasing the productivity of pine sap. This research was conducted in Andiang, Suli…