Can rice water be used to grow green radish in water? How many days does the rice water need to ferment for watering the flowers?

1. Can I use rice water?

Rice water can be used to water the green radish, but it must be fermented before watering. After fermentation, it will become a slightly acidic fertilizer. This natural fertilizer contains a large amount of mineral elements and nutrients needed by plants, and can effectively promote the healthy growth of plants. However, when growing green radish in water, the water must be clean and clear. Fermentation will deteriorate the water quality, which is not only unsightly but also odorous when grown indoors, thus defeating the purpose of cultivation. Therefore, it is recommended not to use it when growing green radish in water. Instead, you can apply some liquid fertilizer specially designed for hydroponics.

2. How many days does it take to ferment?

The fermentation time of rice water varies depending on the environment.

Summer: The temperature is high, mold and bacteria grow faster, and it usually takes 5-7 days to ferment and mature.

Winter: The temperature is lower and the respiration is weakened, so the fermentation time needs to be extended, taking 15-20 days to mature.

3. Fermentation method

1. Put the collected rice water in a container and seal the bottle.

2. Place it in the sun for fermentation, and slightly loosen the bottle mouth to prevent gas generation and explosion.

3. When the water turns yellow-black and has a sour smell, and there is no white starch when shaking the bottom of the bottle, it means that it has been fermented and can be used.