What is a nutrient solution for soilless flower cultivation?

The stock solution of a nutrient solution is the most basic nutrient solution for cultivating flowers. The concentrated solution is a nutrient solution made by concentrating the stock solution by a certain number of times for convenience of storage and transport, such as 100 times, 200 times and 1000 times concentrated. The concentration multiple is prepared according to storage needs. The diluted solution is a nutrient solution obtained by adding water to the concentrated solution according to the growth needs of various flowers. Generally, the diluted solution refers to dilution to the concentration of the stock solution. For example, a concentrated solution of 100 times, when diluted another 100 times, returns to the stock solution; if it is only diluted 50 times, the concentration is 50% greater than the stock solution. Sometimes the diluted solution must be diluted according to the concentration required by the flower species and growth stage, so the diluted solution cannot be considered the same as the stock solution. It can be said that the diluted solution is the cultivation solution, and some also call it the culture solution or working solution. Because the purpose of dilution is cultivation.