BIOTROP courier VOL.21 No. 02 (April - Juni 2019)

Abstract

For this second quarter, we presented a novel innovation in combining digital technology with the convetional hydroponic system. since 2017 we have been developing the digital prototype of sensors which as function to monitor several physial parameters used in hydroponics system. in addition, we raised an interesting topic about stingless bee which has been known to have many benefits for human such producing propolis as natural antibiotic. the details of this insect from taxa classification, apiculture, to end products are presented to you, so you may have a comprehensive information about the bee.