Dendrobium officinale culture substrate and preparation method

Abstract

The invention discloses a dendrobium officinale culture substrate and a preparation method therefore. The culture substrate is prepared from the five materials of bark, brick granules, sphagna, wood dust and maize straw, wherein the bark adopts defatted pine bark with the size ranging from 1 cm to 3 cm, the brick granules adopt smashed red bricks with the size ranging from 1 cm to 2 cm, the sphagna adopts dried sphagna, the wood dust adopts sawdust and is soaked with water and stacked layer by layer for one month for natural fermentation, and the size of the wood dust ranges from 1 cm to 3 cm; the maize straw is smashed to the size ranging from 2 cm to 3 cm and sprayed with diluted nitrogen fertilizer water to keep the straw moist, the straw is stacked layer by layer and covered with a plastic thin film, natural fermentation of the straw can be achieved after 1-2 months, and the fermented straw is smashed to the size ranging from 2 cm to 3 cm. The five materials are cooked separately, carbendazim with the effective ingredient concentration equal to 25% is added to prepare liquid diluted by 500 times, disinfection is conducted for one hour, and natural cooling is conducted; the bark, the brick granules, the sphagna, the wood dust and the maize straw are evenly mixed according to the volume ratio of three to two to one to one to one, and the substrate is prepared.

Description

technical field [0001] The invention relates to the technical field of dendrobium candidum cultivation, in particular to a dendrobium candidum cultivation substrate and a preparation method thereof. Background technique [0002] Dendrobium officinale is a rare and endangered epiphytic herbal medicinal plant of Orchidaceae, which has various medicinal values ​​and health care functions. At present, wild dendrobium is far from meeting people's needs, and long-term overexploitation and abuse have made it difficult to find wild resources. At the same time, Dendrobium officinale has very strict requirements on the growth conditions. Under natural conditions, Dendrobium candidum germinates from seeds, with low reproductive rate and slow plant growth. Under artificial conditions, seedlings can be cultivated in groups, but transplanting is not easy and the survival rate is very low. Therefore, under the same condition of protected cultivation, screening the substrate and the opti...

AI Technical Summary

Problems solved by technology

Under artificial conditions, seedlings can be grown in groups, but transplanting is not easy and the survival rate is very low