1. Early water culture
If you want narcissus to bloom on New Year's day, you must be watered before November 15. Places in South China can be watered 32 to 35 days in advance, and places in central and East China should be watered 40 days in advance. In winter in the north, the indoor temperature is generally relatively high, which can be watered 35 days in advance. This is because the longer the Narcissus head is stored, it will bloom earlier after being watered p>
2. Water change time of Hydroponic
During water culture, it must be changed every few days. It cannot be changed for a long time, otherwise the water quality will become very unclean. Moreover, if the time is too long, there will be little nutrition inside, which can not meet its good absorption. Therefore, it is generally necessary to change the water once every 2 to 3 days. The tutorial should ensure that the water is clean, so that it can bloom earlier p>
3. Hydroponic temperature
Underwater prefers warm places. It is very resistant to cold and afraid of high temperature. It can grow very well between 5 and 20 degrees, and has high ornamental value. But if the ambient temperature of Narcissus exceeds 25 degrees, it will make it less easy to bloom; Therefore, in the process of water culture, the daily temperature should vary from 7 degrees to 8 degrees, and a constant temperature cannot be used. In addition, when cultivating Narcissus, we should pay attention not to be damaged by freezing, otherwise it will be easy to wither its leaves and flower buds, so it can't bloom on New Year's day p>
4. Light during water cultivation
Light is also a very important reason for the flowering of Narcissus. It prefers sunshine. If you let it stay in a dark place for a long time, it will have a long flowering period and can not bloom in time. Therefore, at the beginning of water culture, it should be placed in a cool place with a temperature of 10 to 18 degrees. After it grows new roots, it should be placed in a place with good sunshine for no less than 6 hours of light every day, so that it can bloom on time on New Year's day p>