First, the main cultivated varieties At present, the main varieties cultivated mainly imported varieties abroad. 1. Zheng Qi grows strong, with a plant height of 4011 meters, thick stems, large flower bulbs, oblate spherical balls, flower bulb diameter 17-25 centimeters, single ball weight 600-800 grams, up to 1500 grams, flower The ball is neat and tidy. The leaves are large and thick, more upright, dark green, and thick. 2. The crown of the plant grows vigorously, with a plant height of 50 cm, a narrow and long leaf, dark greenish purple, thick wax, dense curd, a single top flower ball weighing 450-850 grams, strong lateral branches, and high yield of side bulbs. Each plant can be harvested. Three to six side balls are one of the high-yield products that are harvested at different times. 3. Green Ridge plant height 65 cm, large and thick leaves, dense flower ball, light green, flat round, single top flower ball weighing 500-700 grams, strong side branch sprouting, after the top flower ball can be harvested side picking side ball , high yield, disease resistance. 4. Jade crown plant growth potential, plant height of about 60 cm, large and thick leaves, dark green wax powder, squid long, large and loose flower ball and flat, single ball weighing 500-700 grams. 5. Green plant height 65 cm, dark green, large flower ball, single ball weighing 600-850 grams, fresh quality, adaptability, disease resistance, high yield. Second, cultivation methods 1. The cultivation season has a wide temperature range and can be cultivated in spring and autumn. Spring is more than Yangshuo nursery in the middle and late January, planting transplants in mid-March, and cauliflower harvesting in May. The best sowing date in autumn is to raise the seedlings in the middle and late July, to transplant in the middle and late August, and to harvest the cauliflower in October. If adopting insulation or shade cultivation, broccoli can be sown for the sowing period and the annual supply. 2. Cultivating strong seedling broccoli differs greatly due to the different climatic conditions during the planting season and the nursery period. In spring cultivation, the nursery period is in January of the severe winter. Low temperature and weak light are the main factors restricting the growth of seedlings. In the process of raising seedlings, insulation measures shall be taken. Yangshuo, plastic greenhouses and other insulation measures shall be used. New plastic films with good light transmission and good heat preservation effect shall be used; nighttime greenhouses shall be covered with wool or grasshoppers to keep the temperature inside the greenhouses. At 20-25 °C. Specific operating techniques are basically the same as cauliflower. In autumn, the nursery period is July, and it is during the high temperature and rainy season. Special attention should be paid to the protection against rain and cooling. Nursery should adopt high-level flood control and flood control to cover the shade net. Re-apply organic fertilizer, strengthen seedling management and remove weeds in time. Qimiao seedlings after 1 - 2 times, 5-6 cm away from the seedlings, in order to cultivate high quality seedlings. 3. Transplanting and planting vary according to different cultivation areas and methods. The appropriate planting period for open field cultivation is March in March, and autumn in mid-August. Protected cultivation depends on the insulation of the protective measures and the market supply time. Since broccoli has a strong growth potential and requires a large amount of fertilizer, it is necessary to reapply basal fertilizers before transplanting. Transplanting methods are mostly cultivated in flat rakes, with a width of 1.4 meters, two rows of pods, a row spacing of 70 centimeters, a spacing of 30 centimeters, and 2,500 to 3,000 vines per 667 square meters. Planting in the spring to increase the ground temperature can be achieved by ridge cultivation and mulching. 4. Field management in the early stage of spring transplanting should pay attention to keeping warm, autumn planting should pay attention to the cultivator weeding, cooling and protection of glutinous rice water management broccoli hi fertilizer water, on the basis of the re-basal fertilizer, it is necessary to chase after the application of fat and fertilizer Pay attention to the application of phosphorus and potassium fertilizers. The lack of oxygen in early growth can easily lead to early flowering; Boron deficiency during growth can cause yellowing of the bud surface and cracking of the base. With top-dressing fertilizer, foliar fertilizer can also be sprayed. After the main flower bulb is harvested, strengthening the management of fertilizer and water can increase the yield of lateral flower bulbs. 5. The harvesting time of cauliflower broccoli is more stringent and should be fully grown in the curd, the surface is round and the edges are not scattered before harvesting. When harvesting, cut off the flower bulb with the stem at about 10 cm. 6. Storage and sales of broccoli are not resistant to storage at room temperature, the flower ball is easy to spread, and the flower buds are easy to be yellow. For short-term storage, it is necessary to reduce the storage temperature as much as possible, and the general storage temperature is about 0°C. China Agricultural Network Editor
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