1、 Method 1:

1. First prepare a basin or other utensils, and find a place where you can dig soil. Generally, it is in the forest, because there are more rotten leaves formed by fallen leaves in the forest, which contains more nutrition

2. Prepare a shovel, dig out the soil ten centimeters deep in the ground, and put the soil blocks into the basin. Generally, the more soil, the better

3. Take the basin and soil home, put it under the tap, fill it with water, then look for a wooden stick and stir it in the basin for 5 to 10 minutes

4. Then let the basin and the muddy water in the basin stand naturally

5. When the muddy water begins to layer and become clear, the clear liquid on it can be poured out, and this liquid can be used as a nutrient liquid for hydroponic culture

2、 Method 2:

You can buy calcium tablets directly in the drugstore, mash them into powder and pour them into hydroponic water, one tablet at a time, because the contents can also be absorbed by plants, so we can use them safely

3、 Method 3:

One liter of water can be prepared, and then accurately weigh 0.22 g of ammonium phosphate, 1.05 g of potassium nitrate, 0.16 g of ammonium sulfate and 0.16 g of ferrous sulfate, and finally mix 0.01 g of ferrous sulfate. After stirring them evenly, they can be used as nutrient solution. However, although this method is relatively complex and any solute should be accurately weighed, the effect is also the best. Flower friends who are not afraid of trouble can use this method