The invention provides an all-closed cultivation method for dendrobe, and belongs to the field of agricultural production. According to the
biological property of
dendrobium officinale, by designing and using a cultivation device, then, medium selection is performed, the efficient cultivation technology is adopted, and the all-closed cultivation method for
dendrobium officinale is obtained, wherein the medium is prepared from, by weight, 80 parts of
bark mixture, 5 parts of fishbone dust, a compound of 0.001-0.01% of
sodium nitrophenolate or 0.001-0.01 part of rapin and 0.001-0.01 part of
gibberellin GA3, 2-5 parts of algin, 24 parts of N, 5 parts of P2O5, 6 parts of K2O and 1-3 parts of agritol
powder. The dendrobe cultivated through the method can be cultivated under the facility
greenhouse condition for one year or longer, production is efficient, the yield is high, the quality is good, the adopted medium is good in
moisture and
fertility retention effect, and soft rot, black spots,anthracnose, mole crickets, snails, armoured scale, red spider mites and other
plant diseases and
insect pests can be effectively prevented and treated.