What is the key technology of yellow chrysanthemum flower cultivation?

1. Choose a place: chrysanthemums like to be wet and afraid of drying, and avoid waterlogging. After being soaked in heavy rain for 48 hours, all of them died. Therefore, it is necessary to choose land with fertile land, convenient drainage and irrigation, and smooth power supply for planting.

2. Raising seedlings: (1) fresh cut flowers listed in Spring Festival: raising seedlings from July to August. From the middle of August to the first ten days of September. The electric light begins 7-15 days after planting, 2-3 hours every night, and the lights are closed 75-85 days before the Spring Festival. (2) Spring Festival potted chrysanthemum: raise seedlings from August to September and plant in the first ten days of October, the others are the same as fresh cut flowers. (3) fresh cut flowers on the market in Qingming Festival: raising seedlings from mid-October to early November, planting from late October to early November, planting 3? / FONT > 7 days, close the lights 75 to 85 days before Qingming Festival.

3. Planting: generally, the border covers 110-120 cm, the width of the border is 40-50 cm, the working line is 60-70 cm, the height of the border is 13-15 cm, and the height of the cultivated soil is 18-20 cm. Planting specifications vary according to varieties, customers and markets, generally single-headed chrysanthemums with thick branches and tall annual flowers, with row spacing of 8-9 inches, plant spacing of 5-6 inches, 2 rows per row, and the rest can be denser, with 3-4 rows per bed, according to 5x5 or 6x6 specifications. There are about 6000 to 10000 trees per mu.

4. Fertilization: (1) Base fertilizer: 1500 jin of human and animal fertilizer per mu. (2) topdressing: after chrysanthemum planting, chemical fertilizer was applied every 10 days. For each chrysanthemum, about 200 jin of imported compound fertilizer, 100 jin of urea and 50 jin of potassium chloride were applied. Potted flowers can be reduced by an appropriate amount.

5. Sprouting: when the chrysanthemum seedlings are 10 cm high, they sprout and leave 3 lateral buds. Keep flower branches about 18000 to 20, 000 per mu. After the growth of single-headed chrysanthemum, all the lateral buds were removed, leaving only the terminal bud Yunhua. When the plant grows to 70 cm high, the multi-flowered chrysanthemum picks the terminal bud again to make the top bud grow evenly and beautifully. If the florescence is early, more lateral buds can be left, and flowering can be delayed. Late flowering can leave fewer buds to make it bloom earlier.

6. Soil loosening, soil cultivation and Internet management: (1) loosening soil and weeding: after planting, the soil is hardened in case of rain, it is necessary to loosen the soil combined with weeding and remove the lower foot leaves. (2) cultivate soil. About 60 days after planting, high soil cultivation was carried out after the re-application of compound fertilizer, and the nipei of the pedestrian road was put on the flower head. It is good for chrysanthemum to root and prevent falling. (3) surfing the Internet: surf the Internet immediately after Gao Pei Tu, and then raise it upward according to the growth height of the chrysanthemum. Generally use bamboo 1.5 meters high, into the ground 50 centimeters, each border 23 meters apart a bamboo pole, and tightened at both ends to prevent lodging.

7. Prevention and control of diseases and insect pests (1) aphids, thrips, leaf moths, borer and so on. The prevention and control of pesticides are omethoate, methamidophos, methamidophos, etc. (2) mites: red spiders, rusty spiders, etc. The control pesticides include propargite, copper acaroid, Tork, amitraz, methamidophos, isocarbophos, dichlorvos and so on. (3) Underground pests. Ground tiger, beetle larva, etc. The prevention and control of pesticides include carbofuran, Tiemuke, Shachongshuang, methyl isosinophos and so on. (4) leaf knot nematode disease. The prevention and control of pesticides include carbofuran, tienac, Milol and so on. (5) sheath blight, spot blight and rust. Prevention and control pesticides are: Ye Banling, chlorothalonil, encyclopedia EC, topiramate, colloidal sulfur, aldicarb, plant disease Ling, carbendazim, good life and so on.