Planting method
Fertilizing: Food Healthy World_Planting of Chrysanthemum conditions, choose the soil layer is deep, loose and moist, rich in organic matter, drainage and irrigation is convenient, water retention and fertilizer retention of good neutral or slightly acidic loam is appropriate. Before sowing deep soil, per mu of rotted manure 1000kg. made into a wide 1.5m high compartments, ditch depth of 20 ~ 25cm.
Cultivation season: Shandong Province can be cultivated throughout the year, in the autumn and winter need to be cultivated in the facility. Sowing to harvest generally take 30 to 60 days.
Field management
After sowing until the seedling to keep the soil moist, 6 to 7 days to flush seedlings. Winter and spring sowing seedlings
Coronation (14)
After the appropriate control of watering, seedlings 2 ~ 3 true leaves when inter-seeding. Spreading, large-leafed Chrysanthemum coronarium 6cm square to stay strong seedlings, middle-leafed or fine-leafed Chrysanthemum coronarium 3 to 4cm square to stay seedlings; strip sowing, large-leafed Chrysanthemum coronarium spacing of 5cm, middle-leafed Chrysanthemum coronarium 4cm; fine-leafed Chrysanthemum coronarium 3cm, adequate water supply, to keep the soil moist.
When the plant height is about 10cm, follow the water to chase 1 to 2 times of fast-acting nitrogen fertilizer, when the plant height is about 20cm, start harvesting. After cutting the first cut and then watering fertilizer, to promote the occurrence of lateral branches, 20 to 30 days before harvesting. Each acre of manure and water 500kg, urea 3 ~ 4kg.
Timely harvesting: plant height 20cm can be harvested. Leave 2 to 3 leaves at the base of the stem and cut them off to promote lateral branching.
Disease and insect control
Standing Blight: Symptoms and Characteristics: Mostly occurs in the middle and late stages of seedling production. Mainly harm the seedling stem base or ground
Coronation
under the root, the first oval or irregular dark brown spots, early daytime wilting seedlings, night recovery, the disease is gradually sunken, overflowing shrinkage, and some gradual change to black-brown, when the spots expand around the stem a week. Finally dried up and died, but not collapse. Lightly diseased plants only see brown sunken spots without dying. Seedbed humidity, the disease can be seen less obvious light brown spidery mold.
Prevention methods: early onset of the disease can be sprayed with 38% oxacillin copper mycoplasma 800 times liquid, or 41% polystat-pyrimethanil 600 times liquid; or 20% methyl lignocarbophos emulsifier 1200 times liquid, or 72.2% Prilosec aqueous solution 800 times liquid, sprayed once every 7 to 10 days. Or dilute General Grand + Menzies at 600 times solution, 3 liters per square meter before or after sowing and before planting seedbed watering. At the time of planting or after planting and before the expected period of frequent disease, dilute the product at 600 times liquid and irrigate the roots, use the medicine once every 7 days, the number of times depends on the disease.
Leaf spot disease: Symptoms and characteristics:
①Cocklebur leaf spot disease (also known as brown spot disease), infecting leaves, petioles and stems. Leaf spots round, then expanded to irregular large spots, and produce whorls, spots from reddish-brown to black-brown, gray-brown in the center. Stems and petioles on the spot brown, long stripes.
② Fishtail anemone leaf spot disease (also known as black spot disease). Leaf blade produces small black brown round spots, then expand or the spot is irregular large patches, slightly raised edge, leaf scattered on both sides of the small black spots.
3 monarch leaf spot disease (blight). There are elliptical and long light reddish-brown spots on the leaves, surrounded by a green circle, then enlarged to irregular large plaques, and black dots are produced on the spots.
Prevention methods: spray 4% pyrimidine nucleoside antimicrobials 20ml + 41% polystat pyrimethamine 20ml, to 15 kg of water water, 5-7 days with a drug 1 time, used 2-3 times in a row.
Botrytis: Symptoms and characteristics: mainly for the stem and vine, leaves and fruit. The stem base is infected, the first watery spots, and then expanded into light brown, resulting in soft rot or longitudinal cracking of the stem base, the surface of the diseased part of the white cotton woolly mycelium. Leaf infection, leaf surface gray to gray-brown wet rot-like spots, the edge of the spot and the healthy part of the boundary is not obvious, high humidity spots on the surface of the flocculent white mold, and ultimately lead to leaf rot. Fruit infection, the first water-soaked spots, expanding wet rot, the performance of dense white cotton wool mycelium, the late onset of the disease surface now varying numbers of black rat feces-like fungal nuclei.
Prevention methods: in the early stage of the disease, the prevention and control of 20% silazole miconazole 30 ml + 25 ml of Fenitrothion, to 15 kilograms of water, 5-7 days to use the drug 1 time, used 2-3 times.
Vegetable borer: the first instar larvae feeding on seedlings of the heart of the borer, spitting net, lightly affecting the growth of vegetable seedlings, the heaviest can lead to the death of seedlings, resulting in the lack of seedlings and broken ridge; high larvae in addition to feeding on the heart of the leaves, but also can be moth-eaten stems, pith and roots; and can spread the bacterial soft rot disease, resulting in the death of vegetable plants rot. When the larvae hatch, or when they first see the heart and leaves being damaged and there is a silk screen, apply 5% inhibitory tabor emulsion 4000 times spray 2-3 times, and pay attention to spraying the medicine to the heart of the vegetable.
Aphids: Aphids are pests with piercing-sucking mouthparts, often clustered in leaves, young stems, flower buds, terminal buds and other parts of the sap, so that the leaves are wrinkled, curled, deformed, and in severe cases, causing the branches and leaves to wither or even the whole plant to die. When the amount of aphids in the field reaches 500 heads, the ratio of benefit to harm is greater than 1:500, per mu with 25% aphidicolin emulsion 50 ml, or imidacloprid series products 1500-2000 times liquid spray, 10% of the aphidicolin 60-70 grams; 20% of the imidacloprid 2,500 times liquid; 25% of the anti-phidicolin 3,000 times liquid spray prevention and control. Wheat aphids resistant to imidacloprid and amidacloprid should not be used as a single agent in the wheat area, and can be reasonably mixed with low-toxicity organophosphorus pesticides for spraying.