Do hydroponic plants need to change water? How to change water for hydroponic plants?

For hydroponic plants, water is the most important living environment, so changing water for hydroponic plants is a very important work. If you do not change water for a long time, then the oxygen content of the nutrient solution in the water will be reduced, affecting the growth and absorption capacity of roots. In addition, plants themselves remove harmful substances into the water because of physiological activities, so it is necessary to clean up the garbage in time. So, how to change water for hydroponic plants?

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Do hydroponic plants need to change water? How to change water for hydroponic plants? :

It is very simple to change water for hydroponic plants. As long as you master the operation process, you can easily replace the waste liquid and give plants a new living environment. In the process of changing water, plants need to consider the time of changing water, which is generally a fixed period. The second is to clean the roots and containers of plants, and the third is to pay attention to the depth of water. Let's explore these three questions.

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1. Water change time: generally, it is appropriate to change water for 7 days. But the change of water depends on the season. Flowers that have just been hydroponically cultivated require a change of water once every two days. The summer plant growth is exuberant, the temperature is high, the water is easy to deteriorate, the time should be shortened. In winter, most of the plants are semi-dormant or dormant, the temperature is lower, and the interval between changing water can be longer. Generally speaking, the interval between changing water is shorter, which is beneficial to plant growth.

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2. Cleaning of roots and containers: when changing water, the roots should be cleaned, the mucus on the roots can be washed off with clean water, and some of the rotten roots and the old roots that have lost their absorptive capacity can be cut off. After using the container for a period of time, the wall will adhere to some sediment, and it is also easy to grow moss, which should also be cleaned when changing water.

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3. Depth of water: when hydroponic cultivation of flowers, roots are often immersed in water, but this method is inappropriate. It is best not to add too much water. Most of the roots are soaked in water, and a small amount of roots are exposed in the air. In this way, the roots can absorb dissolved oxygen in water and oxygen from the air.