Physicochemical Properties of Hermetia illucens Sandworm and Its Effects on Growth and Yield of Dendrobium officinale

In order to learn the growth-promoting effect of Hermetia illucens sandworm as organic fertilizer on Dendrobium officinale,p H value of the sandworm and the contents of organic matter, nitrogen, phosphorus and potassium were measured according to the standard of organic fertilizer(NY525-2012). Potted seedlings were fertilized with the sandworm of 5, 10 and 15 g/pot(3 treatments),after that their growth were observed. The results showed that the sandworm met the organic fertilizer standard. Germination number of new buds of Dendrobium officinale increased significantly with the increase of the sandworm application. The sandworm also promoted the extension of shoot length, but there was no significant difference in shoot length between sandworm addition of 10 g/pot and 15 g/pot. The results indicated that sandworm of Dendrobium officinale reared on chicken manure could be used as organic fertilizer after decomposition.