Cultivation techniques of Fritillaria thunbergii

Fritillaria Sichuanensis should be planted in a cold and humid climate, requiring an annual average temperature of 0--6 degrees Celsius, the coldest month not lower than 0 degrees Celsius, the hottest month not higher than 15 degrees Celsius, annual precipitation not less than 700 mm, October to April of the following year precipitation of more than 20% of the year environment; to deep soil layer, loose, rich in humus slightly acidic soil planting is good.

seed propagation

7--8 Harvest the green to yellow fruits in June and peel the seeds. Humus soil or sawdust 4 times the seed volume is mixed with the seed evenly, and the mixture is layered into a flat bottom ditch or a wooden box which is arranged indoors or under the forest and is 40 cm wide and 20- 30 cm deep. The layer thickness is 10- 20 cm, and the mountain grass 1- 2 cm thick is covered, and the moisture is kept. If the thickness of the laminated layer is greater than 10 cm, the seeds will be reversed once every other week.

The daily temperature of stratification is maintained at 4- 10 ° C, and the temperature variation period is 6- 8 weeks or longer. Take mature seeds of embryo morphology, drill or remove them from March to April, and use 3- 4 kg seeds per mu. Before sowing, make a ridge, 105- 110 cm wide, 10- 15 cm high, 40 cm wide footpath between ridges, remove calcium phosphate on the ridge surface, cover humus soil 1.5- 2 cm thick after sowing, and then cover the mountain grass to reduce soil moisture evaporation.

In the first and second years of seed sowing, soil cultivation should be carried out after seedling drying in the growth season. In the second growth season, manure or compost should be applied when seedling emerges. In the 6- 7 week and 9- 10 week of seedling emergence, phosphorus and potassium should be applied outside the root.

In autumn and high temperature season, when weeds sprout and bulbs of fritillaria are buried underground, weed buds are raked several times to reduce weeding times. Pay attention to drought prevention, flood prevention and splash mud pollution prevention. It can also be propagated by whole bulbs, separated scales or cut into pieces.

May to dry seedlings before rust damage, to remove dead leaves, if necessary, every 2- 3 weeks, with triadimefon 1000 times spray solution. 500 times solution of 50% carbendazim was used to irrigate the disease area.