1. Temperature: Jerusalem artichoke has low requirements and good adaptability. The best one is between 18 and 22 degrees, but a little higher or lower will not affect its growth. In winter, its tubers can stand 30 degrees below zero. However, if it is on the ground, it can not be less than - 5 degrees.
2. Light: Jerusalem artichoke is a sunshine loving plant. Generally speaking, its tubers can be better formed and grown only when the light is kept for about 12 hours every day. However, try to avoid too much sunshine.
3. Watering: the drought resistance of Jerusalem artichoke is very strong, and it does not need much water. Moreover, its waterlogging resistance is not very good. Therefore, when replenishing water, it can be replenished after the substrate is dry, and no water can accumulate. Large area of planting, need to prevent waterlogging and drainage in rainy season.
4. Fertilization: the requirement of Jerusalem artichoke for nutrition in soil is not very high. Select the soil with appropriate nutrients, and usually need little fertilizer. Generally speaking, it only needs to apply fertilizer twice in the growing period. Once around May, use urea. Once in budding stage, use potassium sulfate.
1. Reproduction: seed reproduction can be used. It's best to plant in spring, after thawing. Select suitable tuber seeds. When sowing, the depth is controlled at 10 to 20 cm, the row spacing is at 0.5 m, and the plant spacing is also at 0.5 m.
2. Pruning: usually it is mainly to repair its branches and leaves properly. Because of its high requirement for sunlight, if it is too dense and disorderly, it will seriously affect the light transmission. In addition, after the flowering period, we also need to repair the flowers and branches.
1. Disease: the main one is rust. The spores that cause the disease will winter on the plant, and when the temperature rises the next year, they will cause the disease. It can be treated with Triadimefon. In addition, we also need to deal with the disease in time, and then pay attention to drainage, control density and so on.
2. Insect damage: the situation of Jerusalem artichoke affected by pests is not too much. If there are signs of pests, it should be dealt with in time.
1. Toxicity: Jerusalem artichoke itself is non-toxic and harmless. However, the mildew will contain toxic substances.
2. Whether it can be raised at home: Yes, but generally people won't raise it as a potted plant at home, because it's not for viewing.
