The invention discloses a
greenhouse circular cultivation method for
cedrela sinensis. The method comprises the following steps: culturing seedlings, selecting parcel of
paddy field, applying special
fertilizer for
cedrela sinensis, preparing a
greenhouse and equipping the
greenhouse with automatic sprayers, roller shutters and supplementary lighting lamps; preparing a garden
bed in the greenhouse; planting the
cedrela sinensis seedlings at the end of November and planting and hole-
sowing in the ratio of 150 plants /
square meter; fully watering the root-fixing water and watering
seedling-returning water for one time after the seventh day; after 17-day
dormancy, carrying out sun-shading and adding a cotton quilt; increasing temperature, supplementing light, supplementing
humidity and guaranteeing 7-hour light illumination each day; keeping the temperature at 15-30 DEG C; keeping 75%
humidity; supplementing
light at night and maintaining the temperature; after
sprouting for 2-3 days, applying 0.5% of a leaf
fertilizer; after
sprouting for 3-4 days, applying 5ppm
auxin; preventing and controlling
plant diseases and
insect pests; picking after
sprouting for 9 days; ending the picking period, sawing the
trunk, only maintaining 10-15 centimeters and maintaining 10
centimeter roots as the biennial cedrela sinensis for continuing the
greenhouse cultivation; and leaving the planting hollow at this season as the
seedling culture field in the next year. The cedrela sinensis cultivated according to the invention has the advantages of high
growth speed, high yield and high quality; the speed of breeding new seedlings is high; the use ratio of land is high; the variety cannot degrade.