Whether it is seedlings that have grown after sowing or seedlings that have been planted by the ramets method, it is necessary to change the pots when they are grown to the same place. In general, it is necessary to change pots after planting for 2 years. After the pots are grown, they need to be changed in 2 years. This is because: (1) After the plant grows, the original pot has not been able to adapt to the need for further extension of its roots. 2 The nutrients in the original basin soil have been absorbed almost, and some new soil with sufficient nutrients should be replaced to supply the needs of the plants to grow up. 3 Take this opportunity to check to see if there are pests and diseases, and the root cause of the infection. If there are any, it should be cut off in time to avoid increasing the infection. If there are too many roots, you should also take this opportunity to cut off part of it.
The time of spring change is spring (usually before the rainy season in spring) and autumn, and it is most appropriate when the temperature is around 20Â°C (note: not at flowering time). The new pots for basin replacement should be larger than the original pots to facilitate further expansion of the plant roots. Add some superphosphate (or bone meal) to the soil and mix the soil as a base fertilizer. When changing the basin, first use a knife to insert the soil along the inner wall of the basin for a week, so that the old basin soil is separated from the basin wall (easy to pour out). Then, with the palm of your right hand facing down, use the middle finger and ring finger to put it into the plant's rhizomes. Five fingers open to press on the potted soil. The left hand will turn the pot over and hold the potted soil and the seedlings on the palm of your hand. (If the flowers are heavy, There must be two people working together.) Then strip away most of the potted earth. Leave a small part of the root soil, spray it with water, and immediately plant a new pot. When planting, the plants should be placed in the middle of the pots so that the roots can stretch freely in the pots. The long roots can be cut off, leaving part of the pots at the bottom of the pots. Then gradually add soil, shake the pelvic body while adding, so that the culture soil fills the gap between the root system, and full contact with the root system. Finally, raise the plant by 1-2 cm to make the roots straighten. Then shake the pelvis body and gently press the soil surface. Pour the water once and place the pot in the shade.
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