1, seed cultivation Select the growth of 4-5 years of robust plants, usually to strengthen the fertilizer and water management system, and insert some artemisia stems or branches next to the plant as a stand, so that when the volume must be climbed to avoid wind fold. May flowering and strong, in late May (small full) the plants on the ground that withered, but the fruit is still not mature, can be put away with fruit, stored in a ventilated place until after the cooked, pay attention to mildew. Dry to fruit from green to yellow, cracking when the fruit seam, the fruit is taken off, and the seeds are sown that they can be sown. 2, the election site preparation The soil is rich in soil, loose and fertile, and well-drained humus or sandy loam. Avoid saline-alkali soil and viscous and heavy soils. It is best to be close to the water source for irrigation. In the spring, after the earth has been frozen, it is necessary to carry out detailed turning, stumbling, and soil preparation. According to the width of 1-1, 2 meters, 50 centimeters for the work channel. The 7-8 cm deep topsoil is dumped onto the work track to make it become a flat bottom cut. After that, it is compacted into a hard bottom with a roller. This will facilitate harvesting, prevent omissions, and provide water and fertilizer protection. After compacting the bottom of the ravioli, lay a 5-7 cm thick base fertilizer on top of the ground, preferably pig manure, horse dung and humus. Each acre can be mixed with 20-25 kilograms of superphosphate, and the used agricultural fertilizer must be thoroughly cooked and sieved and then applied. Base fertilizer can be planted again with 2-3 cm thick soil. 3, field management (1) There is grass and pull out to prevent weeds from competing for water and fertilizer. The depth of weeding was based on no damage to bulbs; total weeding was conducted 2-3 times during growth and withering; before emergence, 50% simazine or atrazine 0,15 kg per acre was used to treat the soil with 200 kg of water. (2) fertilization and irrigation. Planting fritillary with decomposing pig manure is better, and avoid using alkaline fertilizers such as clay soil and small ash. Apply shucks twice a year for the first time. After the bulbs are harvested for the first time until they are frozen, the applied manure should be finely crushed and about 3 cm thick on the surface. In the middle of the May ticket, the mother-of-pearl growing season can be followed by superphosphate and diammonium phosphate, followed by irrigating with water, and the water can be leached in time. Foliar fertilizer can also be applied. (3) Remove buds. After budding buds, if no species are left, they should be promptly removed. If the species is planned to be preserved, buds may be appropriate.