Campanulaceae, alias Baohua, bitter root, etc., are both medicinal and food products. 2 years old plant.
Growth habits: hi warm and moist environment, cold-resistant, afraid of water, wintering in the field, strict requirements on the soil, the general soil can be planted, with rich humus-rich sandy soil or black soil planting is better, not in the tuyere Kind to prevent lodging.
1. Planting techniques: seed propagation, live broadcast and seedling transplanting, presenting the live broadcast method: Seed propagation, sowing seedlings from Qingming to Guyu, 1.25 to 1.5 kg per mu, live seedlings should be selected well before planting, and 2500 kg of base fertilizer must be applied. Fertilizer or 20-30 kg of ammonium phosphate, which is the key to increase production. After the preparation of the earthworms, they were planted in rows of 20-24 cm and dipped in shallow grooves of 2 cm depth to spread the seeds evenly into the furrows. Then the soil was covered and the soil was watered. Before the emergence, the soil was kept moist. Seedlings can emerge at an appropriate temperature for 15 days: If the soaking is done 2 to 3 days in advance, the method is to set the seeds to warm water at 50°C, stir until the water is cool, then soak for 8 hours, and put the seeds on a wet cloth and put them on. In the place of 25~30°C, cover with a wet anaphylaxis slice and rinse once daily with warm water. About 4~5 days, when the seeds germinate, you can sow.
2, field management: after emergence, we must pay attention to weeding, seedling height 7 cm time seedlings, plant spacing 6 cm, Platycodon grandiflora does not like water, seedling period is not too dry not to water, after setting the seedlings to a small water pouring, frozen before freezing water. To prevent the root of the bellflower, it must be a single seedling, especially when it returns to green in the second year, a multi-seedling is most likely to occur. At this time, special attention should be paid to removing the excess seedlings, keeping one seedling and one seedling, and applying multiple fertilizers. Phosphorus fertilizer, less nitrogen fertilizer, to prevent light long medlar without rooting. Buds other than seeds should be removed promptly.
3. Pest control: During the rainy season, it is necessary to drain water. From July to August, it is the onset period. Leaf blight can harm the leaves. When the disease begins, it first extends from the tip of the leaf or the leaf margin inward, showing black spot disease, and finally leaves the leaves dead. Can be used 1:1; 120 Bordeaux spray, spray every 7 to 10 days, even spray 2 times.
4, harvest processing: the end of September early harvest in October, early impact on yield, too late unfavorable drying, to the net soil, fresh and peeled, one year per mu 180 ~ 200 kg, two years 300 ~ 500 kg per mu, In recent years, South Korea has acquired a large number of fresh bellflowers.
Growth habits: hi warm and moist environment, cold-resistant, afraid of water, wintering in the field, strict requirements on the soil, the general soil can be planted, with rich humus-rich sandy soil or black soil planting is better, not in the tuyere Kind to prevent lodging.
1. Planting techniques: seed propagation, live broadcast and seedling transplanting, presenting the live broadcast method: Seed propagation, sowing seedlings from Qingming to Guyu, 1.25 to 1.5 kg per mu, live seedlings should be selected well before planting, and 2500 kg of base fertilizer must be applied. Fertilizer or 20-30 kg of ammonium phosphate, which is the key to increase production. After the preparation of the earthworms, they were planted in rows of 20-24 cm and dipped in shallow grooves of 2 cm depth to spread the seeds evenly into the furrows. Then the soil was covered and the soil was watered. Before the emergence, the soil was kept moist. Seedlings can emerge at an appropriate temperature for 15 days: If the soaking is done 2 to 3 days in advance, the method is to set the seeds to warm water at 50°C, stir until the water is cool, then soak for 8 hours, and put the seeds on a wet cloth and put them on. In the place of 25~30°C, cover with a wet anaphylaxis slice and rinse once daily with warm water. About 4~5 days, when the seeds germinate, you can sow.
2, field management: after emergence, we must pay attention to weeding, seedling height 7 cm time seedlings, plant spacing 6 cm, Platycodon grandiflora does not like water, seedling period is not too dry not to water, after setting the seedlings to a small water pouring, frozen before freezing water. To prevent the root of the bellflower, it must be a single seedling, especially when it returns to green in the second year, a multi-seedling is most likely to occur. At this time, special attention should be paid to removing the excess seedlings, keeping one seedling and one seedling, and applying multiple fertilizers. Phosphorus fertilizer, less nitrogen fertilizer, to prevent light long medlar without rooting. Buds other than seeds should be removed promptly.
3. Pest control: During the rainy season, it is necessary to drain water. From July to August, it is the onset period. Leaf blight can harm the leaves. When the disease begins, it first extends from the tip of the leaf or the leaf margin inward, showing black spot disease, and finally leaves the leaves dead. Can be used 1:1; 120 Bordeaux spray, spray every 7 to 10 days, even spray 2 times.
4, harvest processing: the end of September early harvest in October, early impact on yield, too late unfavorable drying, to the net soil, fresh and peeled, one year per mu 180 ~ 200 kg, two years 300 ~ 500 kg per mu, In recent years, South Korea has acquired a large number of fresh bellflowers.
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