Know how to maintain flowers and seedlings and what are the fertilizer absorption characteristics of flowers and plants

Plants mainly absorb mineral elements through their roots, and all kinds of plants absorb mineral elements with their own characteristics, mainly in the following aspects:

The main results are as follows: (1) the relationship between mineral element absorption and water absorption by roots. Mineral elements can be absorbed by plants only when they are dissolved in water. Water directly affects the absorption and transport of mineral elements, but the relationship between them is not in direct proportion and each has relative independence.

(2) the roots of plants have the characteristics of selective absorption of mineral elements. The amount of salt ions absorbed by roots is not proportional to the ions in the solution, and even the anions and cations of the same salt enter the plant in different proportions, which makes the composition and pH of the nutrient solution change gradually.

(3) the antagonism between toxic ions caused by single salt. If any plant is in the nutrient solution containing single-salt, it can not grow, which is called single-salt toxicity. If a small amount of other salts are added to it, the single-salt toxicity can be eliminated. This phenomenon that the ions can eliminate the toxicity to each other is called antagonism. Therefore, when determining and selecting the formula of nutrient solution, the formula of nutrient solution should be selected according to different kinds of characteristics.