Key Points of Fritillaria cirrhosa Cultivation Techniques and Detailed Planting Methods
Fritillaria cirrhosaIt is best planted in a cool 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 of no less than 700 mm, and precipitation from October to April of the following year reaching more than 20% of the annual total; deep, loose, humus-rich, slightly acidic soil is best for planting.
Seed propagation
Harvest fruits that have turned from green to yellow in July--August, and extract the seeds. Mix the seeds with 4 times their volume of humus soil or sawdust, and stratify them in a flat-bottomed trench or wooden box set up indoors or under forest, 40 cm wide and 20--30 cm deep, with a stratification layer thickness of 10--20 cm, covered with 1--2 cm thick mountain grass, etc., keeping it moist. If the stratification layer thickness is greater than 10 cm, turn the seeds once every other week.
Maintain a daily average stratification temperature of 4--10 degrees Celsius, with a variable temperature period of 6--8 weeks or longer. Take seeds with mature embryo morphology and development, and sow them in drills or broadcast in March--April, using 3--4 kg of seed per mu. Before sowing, make beds 105--110 cm wide and 10--15 cm high, with a walkway between beds 40 cm wide, broadcast superphosphate on the bed surface, cover with 1.5--2 cm thick humus soil after sowing, then cover with mountain grass to reduce soil moisture evaporation.
In the first and second years after seed sowing, soil should be hilled up after the seedlings wither during the growing season; when seedlings emerge in the second growing season, apply barnyard manure or compost as a topdressing; at 6--7 weeks and 9--10 weeks after emergence, apply phosphorus and potassium fertilizer as a foliar topdressing.
In the high-temperature season of autumn rain, when weeds sprout and the Fritillaria seedlings have withered with the bulbs buried underground, rake out weed buds several times to reduce the number of weedings. Pay attention to preventing drought, waterlogging, and mud-splash contamination. Complete bulbs, separated scales, or scale cuttings can also be used for propagation.
From May to before seedling withering, there is damage from rust disease; remove withered leaves, and if necessary, spray with a 1000-fold solution of triadimefon every 2--3 weeks. For soft rot, irrigate the affected area with a 500-fold solution of 50% carbendazim.