You can turn soil culture into hydroponics. Specific methods: turn the soil asparagus upside down, gently tap the edge of the pot, pour it out by gravity, soak it in water with the soil lump, wash the soil, be careful not to hurt the root system, slowly straighten the root system, put it in a transparent vase, fix the root system at the mouth of the bottle, and add water to the bottle at a height of 2-3 cm below the joint between the root system and branches to keep it normal.

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1. Choose healthy and well-developed asparagus as the female parent material of hydroponics, take the asparagus soil out of the flowerpot, carefully wash the soil from its roots, remove rotten roots and cut off some old roots. Wash leaves and plants with clean water to avoid damaging plants. Asparagus takes root slowly, so be careful not to hurt the roots of asparagus.

2. Fix the cleaned plants with planting baskets, and let their roots fully extend when fixing; Then put the plants together with the planting basket into the carbendazim solution of 1‰ to soak the roots for 30 minutes, and put them in the shade. After the root becomes soft, the next operation can be carried out.

3. Fill the nutrient solution pool with special nutrient solution for asparagus, and plant the treated plants on a floating tray (pay attention to keep some roots exposed to the air). Spray water on the leaves twice a day, and grow new roots after two weeks at the appropriate temperature of 15-25℃. At this time, foliar fertilizer should be supplemented every other week.

After three to four weeks, the roots of asparagus have sprouted a lot. At this time, you can put a bottle of static hydroponics, and it is best to fix it with ceramsite.

5. Asparagus likes a semi-humid environment, usually placed by a bright window, but not in direct sunlight, and kept ventilated. Put a tray containing water under the container and replenish water frequently.

6. It is best to use special nutrient solution for asparagus hydroponics. The maintenance of asparagus in hydroponics is much easier than that in soil culture. You only need to pay attention to changing water at ordinary times, about 7- 10 days in summer and 20 days in winter, and you should supplement nutrient solution every time you change water.