UPAYA PENINGKATAN PRODUKSI DAN PERBAIKAN MANAJEMEN KELOMPOK USAHA KECIL JAMUR TIRAM

Oyster mushroom is one of the food ingredients that have good nutritional content so that many people are happy to consume it. This makes the cultivation of oyster mushrooms becomes an interesting business to be developed. Oyster mushrooms will grow well at 22 - 28 ° C and 80 - 90% RH. Indonesia generally has two seasons, the rainy season and the dry season. The rainy season lasts between November to April, it has very high rainfall and relatively cool air temperature, around 24 ° -28 ° C during the day and 23 ° -26 ° C at night. Meanwhile, the dry season generally takes from May to October. In this season, the air temperature tends to be quite hot, which is about 28 ° -34 ° C during the day and around 21° -25 ° C at night. Air temperature during the dry season is a problem for oyster mushroom cultivators. This IbM program aims to be able to condition the air during the peak of the dry season in order to stay awake at 80-90% humidity and temperature 22-280 C. The applied method is to install an air conditioning system which consists of a mist nozzle and an exhaust fan. The mist nozzle serves to spray mist to increase the humidity and decrease the temperature, while the exhaust fan has a function to remove the hot air out of the mushroom room. The mist is produced by 8 nozzles which get water supply from 300 watt water pump with minimum pressure 3 bar. Pump operation is controlled by a microcontroller that get input from humidity and temperature sensor that mounted inside the growing mushroom room.