1. What do you want to put in the water

(1) Iron nails: add a few rusty iron nails into the water of hydroponic green pineapple to supplement iron. It is a trace element. Although the amount required is small, it is very important for the healthy growth of plants

(2) Vitamin C: Vitamin C is also one of the essential elements for plant growth, which is true for most plants. For plants with flowers, it can prolong their flowering period. For the green rose, it can grow better

(3) Nutrient solution: fertilizer is very important for hydroponic green pineapple, especially when its growth is weak. However, instead of using ordinary chemical fertilizers, we should use nutrient solution. However, nutrient solution should not be used for a long time. Add two or three drops each time you change the water. After adding, some green algae may appear in the water, so pay attention to remove them when changing the water next time

2. Precautions for hydroponic culture

(1) Root cleaning: for hydroponic plants, root cleaning is very important. When the root system is too long, it should be cut short in time, otherwise the nutrition will be lost

(2) Sufficient light: scattered light is needed for both hydroponic and soil culture

(3) Spray water: when dry, don't forget to spray water on the leaves

(4) Change container: after the plant grows up, the original container is not suitable and needs to be changed into a larger one