Marigold cultivation technology and application
Goji Berry Oil,Goji Berry Juice ,Goji Berry Tea ,Dried Goji Berries Dried Fruit Co., Ltd. , http://www.nbgojihome.com
December 13 13:08:18, 2018
Marigold is also called calendula chrysanthemum, stink hibiscus, and honeycomb chrysanthemum, and is an annual herbaceous flower. It has been widely used in the aquaculture and food industries, and it is also being emphasized in urban greening. Now introduce its cultivation techniques and applications. First, nursery 1. Seedling time, area, amount used. The nursery time can be based on the transplanting time. Generally, spring marigold is raised about 40 days before transplanting. Each 667 square meters of spring marigold needs 20--25 square meters of seedbed, about 30 g of seeds. 2. Seeding methods spring marigold use Yangshuo or small arch shelter nursery, mostly small arches. The seedbeds are leeward and sunny, and east-west is preferred. The width and length of seedbed are suitable for film size and convenient management. Generally, the width should not exceed 1.3m. The height of the shed is about 60cm. The best choice of film is the temperature-reducing film with good insulation properties. 3. Sparse fertilization marigolds are not strict with the soil, and soils with deep, loose, drainage, and breathable soil should be selected. The depth of the bowl is 20-25cm, making the surface soil soft and finely crushed, and the field is flat. Each planted 667 square meters of seedbed compost 200kg, chrysanthemum-specific fertilizer 2kg, soil fertilizer into the ground, the fertilizer evenly spread on the surface, the use of hoe into the ground, then rake fine, leveling. 4. Seed treatment first select seeds, remove impurities and pod seeds to ensure that the seeds are full. The selected seeds are then sun-dried to kill germs, enhance seed vigor and increase germination. Soak the seeds in warm water of 35--40°C for 3 - 4 hours before sowing, then remove and filter them with clean water, and control the dry water for sowing. For the prevention of seedling disease, thiophanate-methyl or chlorothalonil may be used for seed dressing. 5. When planting sowing should be selected no wind, sunny. On the day of sowing, the seedbeds were soaked with water, and they were sown after the water had penetrated. When sowing, the treated seeds were mixed in fine sandy soil and spread to the seedbed in 2 to 3 spreads. After sowing, cover the soil with 0.7--1cm. 6. Seedling management spring sowing marigold in the 6-7d after sowing Qiqimiao, seedlings Qi Qi should pay attention to the temperature within the seedbed can not exceed 30 °C, so as not to cause burning seedlings and rot. When the seedling grows to about 3cm and the first pair of true leaves is unfolded, ventilation should be taken to prevent leggy. The temperature in the seedbed is kept at 25--27°C. The ventilation time should be between 8 and 9 in the morning. Ventilate at noon high temperature, so as not to cause flash seedlings. In case of strong winds to cool the weather, stop ventilation. When the average outdoor temperature is stable above 12°C, sunny and windless days should be selected to uncover the film and remove weeds from the seedbed. Such as water shortages should be sprayed once again permeable, and cover the film, increase ventilation, watering the seedbed should not be too busy, in order to maintain the dry inter-bedded wet is appropriate. When the outdoor temperature is stable at 15°C, the seedlings shall be peeled off and the seedlings shall be uncovered. The watering shall be stopped about 7 days before transplanting, and the seedlings shall be planted before transplantation to prepare for transplanting. Second, transplanting 1. Transplanting time When marigold seedlings are 0.3cm thick, 15–20cm in height, and 3–4 pairs of true leaves appear, they can be transplanted. 2. Planting methods are planted in wide and narrow rows, with large rows of 70 cm, small rows of 50 cm, plant spacing of 25 cm, and 4,500 plantlets per 667 m2, planted by size of seedlings. 3. Plastic film cover is covered with plastic film to increase ground temperature and promote early maturity of flowers. 4. Watering after transplanting should be flooded, prompting early seedlings and early rooting. Third, field management After cultivating the soil in the cultivating soil, the pods should be planted in shallow depths. When the height of the seedlings is 25--30 cm, a small amount of branches will appear, and the roots will be cultured at the base of the plants from the ridges to promote the development of adventitious roots to prevent lodging and inhibit the growth of weeds under the membrane. 2. After watering the soil, water the soil according to soil moisture. The amount of water should not be too large for each time. Do not spread ridges to keep the soil dry. 3. Outside the root dressing fertilizer in the flower bloom when the root dressing, spray time after 6 pm is better, spray urea 30g per 667 square meters, potassium dihydrogen phosphate 30g. 4. Disease and Insect Pest Control Marigold has fewer pests and diseases, mainly viral diseases, blight, and spider mites. Prevention and treatment of viral diseases with viral virulence and bactericidal bacillus control 75% of chlorothalonil, carbendazim, beta-aluminophosphate, and thiophanate-methyl for fusarium wilt; prevention and control of spider mites in the early stages, with 40% oxidative music Fruit 1000--1500 times fluid or 50% malathion EC 1000 times, sprayed once every 7 days, and sprayed twice. IV. Application of marigold in urban greening 1. Application of marigold dwarf cultivars Dwarf cultivars are characterized by strong branching, multiple flowering densities, low plant height, well-growth, and spherical flowers that are completely double-lobed. It can be placed on pots as required, or transplanted on flower beds, grouping graphics, etc. 2. The application of medium-sized varieties of marigolds The large-scale variety, long flowering period, and extensive management are one of the main varieties of turf-studded flowers, mainly manifested in the uniformity and consistency of the population after planting, and also allow people to appreciate their individual plants. Bright colors and plump plant type. 3. High-yield varieties of marigold High-yield flowers are large, colorful, and have long peduncles. They have a long lasting water-retaining time after cutting flowers. They are excellent fresh-cut flowers, they can also be used as ribbon-shaped planting fences, and can also be used as background materials. Use it.