1, culture method of trollius chinensis.
Plenty of light: Trollius likes to have plenty of light, but it can't be exposed to direct sunlight in summer. It should be kept in a cool and ventilated place. In North China, it should be put indoors in the middle of June 5438+ 10, where the sun can shine. The growth of Trollius chinensis will follow the light conditions, and it is necessary to constantly rotate plants and receive uniform light.
Scientific watering: control the soil water content at 50%, and water less during the growing period. Water once every 65,438+0 ~ 2 days in spring and autumn, once every day in summer, and spray water on the leaves of Trollius chinensis in the evening. Reduce the number of watering in bud stage and increase the amount appropriately.
Suitable temperature: The optimum temperature of Trollius chinensis is 18 ~ 24℃, which is afraid of high temperature. If the temperature is too high in summer, it will be difficult to blossom, and if it is higher than 35℃, the growth will slow down or stop. Trollius chinensis is not cold-tolerant, and it can only survive for a short time at 0℃, and the winter temperature should be higher than 10℃ to facilitate overwintering. In winter, the temperature should be controlled at 12 ~ 16℃, and appropriate fertilizer and water should be added to keep the growth of Trollius chinensis.
2. Matters needing attention in trollius chinensis culture.
Rational fertilization: 20% decomposed bean cake water can be applied once a month in the growth period of Trollius chinensis, 0.5% superphosphate or decomposed chicken and duck manure water once every half a month in the flowering period, and 30% decomposed bean cake water once after flowering. Topdressing overwintering compound fertilizer in late autumn instead of topdressing in summer is beneficial to cold resistance and growth in the coming year.
Pruning in time: In order to make the Trollius chinensis branch more and bloom more beautiful flowers, we should pay attention to pruning when growing. When the branches grow to a certain extent, we can shape them, tie them well and combine them by pinching, so that more branches can be separated.
Causes of Yellow Leaves of Trollius chinensis
1, improper watering: Trollius likes to grow in a humid environment. If you forget to water, the soil will be dry for a long time, which will lead to water shortage and yellow leaves. But don't water it too much. If the soil permeability is poor and the roots can't breathe fresh air, the roots will suffocate and the leaves will turn yellow.
2. Improper lighting: Trollius chinensis grows better in an environment with lighting conditions. If you don't see the sun for a long time, the plants can't fully carry out photosynthesis, and the leaves will slowly turn yellow. However, if the light is too strong, it will also cause discomfort, especially in summer. If exposed to strong light, it will scorch the leaves.
3. Poor ventilation: Trollius likes to grow in an environment with good ventilation. If you grow in a closed room for a long time and can't breathe fresh air, the leaves will dry up and turn yellow.