Fritillaria, commonly known as Fritillaria, is a perennial herb of the lily family. Bulb medicine is one of the major real estate medicinal materials in Northeast China, and enjoys a good reputation both at home and abroad. First, the bulbs were cultivated from early to mid-June. The bulbs were firstly divided into large, medium and small bulbs. Bulbs larger than 0.8 cm in diameter were bulbs, 0.4-0.8 cm in bulbs, and bulbs less than 0.4 cm in diameter. After selection, they are planted according to large, medium, and small plants, respectively. The planting method spreads evenly. The spacing of the plants is 2-3 cm. Each bulb of 667 square meters is 300 kg of bulbs, 200 kg of bulbs, and 100 kg of bulbs. After sowing, the cover soil was 3 cm. The surface was flat and slightly high in the middle to prevent accumulation of water. Bulbs were basically planted in practical production, and few seeds were sown. Second, planting shading crops Fritillaria hi cold and humid environmental conditions, in early June after the maturation of Fritillaria, the weather entered the high temperature period, in order to prevent direct sunlight in the summer, the ground temperature increased, to create favorable conditions for the differentiation and growth of new shoots, After planting, or after the mature mother of Fritillaria matures, shading crops are planted in time. The principle of selecting shading crops is that the shading effect is strong and the root system is small, which has little influence on the growth and development of fritillaria, is not a parasite of fritillary disease, and can also enhance soil fertility. The production area chooses soybeans and suzi crops as shading crops. Third, in addition to grassland temperature 2-4 °C Fritillaria will be able to emerge, early emergence than weeds, weeds grow quickly in the late, to avoid the big grass injury Fritillaria affect the growth of Fritillaria, plant death after the death, can be shallow shovel 1, Not to hurt the bulbs, general Fritillaria can be pulled twice during growth. Fourth, prevention and treatment of disease rust, leaf back, petiole, stem base, there are many brown spore population, when the disease is heavy, Fritillaria early withered. The prevention and control method is to strengthen field management, timely remove stubborn shoots on the ground, and spray 1,000 times liquid thiophanate methyl or 200 units of polymycin before the onset of the disease. Botrytis cinerea, watery immersed lesions appearing at the tip of leafy leaves, and withered later in the day, prevent and treat 500-times of daisenamine or tetromycin. Sclerotinia, also known as scab, occurs in early spring and late autumn. The edges of the leaves turn purple and yellow at the beginning of the disease. The leaves gradually become purple and yellow, the plants are dwarf, the leaves are narrow, the leaves or tips of the leaves are wilting, and the whole plant is finally wilted. Death, black lesions appear at the beginning of the bulb disease. The boundary of the lesion is obvious, and it gradually expands, causing the entire bulb to turn black and rot, forming a black sclerotia like millet. The sclerotia overwinters on the remnants and in the soil and then infects in the coming year. Prevention and control measures, choose land suitable for Fritillaria growth, establish a disease-free planting base, and prevent diseased areas from planting into non-endemic areas. With proper land parcels and local disease in the field, the diseased plants and the soil in the wards should be excavated, and water should be irrigated with either zeocin and sclerotinum soils or 400-600 times.
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