Most mushroom farmhouses employ surface irrigation for watering, which causes brown spot on mushroom, making the mushroom die or get brown, so cultivated mycelia become broken, preventing continued mushroom farming. In a drip irrigation system, water is flowed through any or both ends of the rubber outer tube ( 7 a), 11 a doubly inserted into blade scar of the dripping nozzle ( 11 ) or hose ( 7 ) only during water dripping, and the rubber outer tube ( 7 a), 11 a prevents direct exposure of blade scar to the culture medium layer, not contacting water with external oxygen, thereby preventing mycelia from being coated in the blade scar to clog water hole. Various alien substances are not introduced through the blade scars 6 formed in the flexible soft rubber, and insect control liquid and water is ejected without any clogging by water pressure to ensure effective dripping of water, nutrition liquid and insect control liquid to the culture medium layer of a mushroom cultivating plate.
