Abstract:
Oyster mushrooms have the conditions of growing at low temperatures and high relative humidity, so when you
want to cultivate it is needed an appropriate environment for the growth and development of oyster mushroom.
Banjarbaru City tends to have high temperatures with a relative humidity that tends to below. This is quite
different from the requirements for growing oyster mushrooms which require low temperatures with relatively
high humidity. One of the easiest and cheapest methods to maintain temperature and relative humidity to remain
ideal and appropriate is to water the surrounding oyster mushrooms growing media, so knowledge of the most
appropriate and ideal watering frequency for growth and development of oyster mushrooms is needed. The
environmental design used was a Completely Randomized Design (CRD), a single factor with 4 treatments, 5
replications, so that 20 experimental units were obtained. The treatments are p1 = once watering per day, p2 =
twice watering per day, p3 = three times watering per day, p4 = four times watering per day. The result showed
that the watering frequency showed significant difference to the growth time of oyster mushroom shoots and the
wet weight of oyster mushrooms. The best treatment in accelerating the growth time of oyster mushroom shoots
and increasing the wet weight of oyster mushrooms is four times watering frequency per day.
Keywords: Humidity; Oyster mushroom; Watering frequency.
