1、 Rice washing water

Rice washing water contains many nutritional elements, but note that if it is used, it must be fermented first. Put the rice washing water accumulated at ordinary times in a large bottle, screw the cover and put it in the sun for about half a month, then add 50 times of clear water to stir, and then put it into the bottle for storage. It can be used regularly during water cultivation. This is a good nutrient solution

2、 Compound fertilizer

It is also possible to make nutrient solution with compound fertilizer. The method is to put an appropriate amount of fertilizer in water, stir and dissolve it, and then put it into a bottle for storage after it is completely dissolved. When hydroponically growing plants, a small amount of fertilizer is added to the water, which can promote the growth of plants, because it contains the nutrients of flower fertilizer itself, which can make plants grow more vigorously

3、 Natural nutrient solution

Dig an appropriate amount of soil from the fallen leaves in the garden, put it in a basin, fill it with water and stir it, then put it in the sun for drying, and stir it again after the water and soil are separated. In the same way, when the water and soil are separated, it can be put into a bottle for preservation. The filtered water contains the nutrients in the flower soil, which can be used as nutrient solution and promote plant growth

4、 Precautions

When hydroponicing plants, it should be noted that nutrient solution can not replace adding water and changing water, nor can it be used for a long time to avoid burning plants and affecting growth. Add a small amount of water regularly. Change the water when the water quality is turbid. Add clean water when the water is small, and do not add nutrient solution